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UNIT 1: ENERGY
         
HONORS EARTH SCIENCE

                     Stop Monkey-N-ing
                          around and
                      Go Green already!
                     P.S. I’m Mookie the
                            Monkey




    NOTE PACKET #2
       MS. GILL
Unit 1: Energy                      Earth Science-Ms. Gill                Note Packet #2

                                           Vocabulary:

  Absorption                                             Mechanical
  Conduction                                             Medium
  Convection                                             Melting
  Condensation                                           Non-Renewable
  Electricity                                            Resources
  Electromagnetic Spectrum                               Nuclear
  Energy                                                 Phase Change
  Energy Transformations                                 Potential
  Environment                                            Radiation
  Equilibrium                                            Reflection
  Forms of Energy                                        Refraction
  Freezing                                               Renewable Resources
  Frequency                                              Scattering
  Gas                                                    Solid
  Geothermal                                             Solar
  Global Warming                                         Sound
  Green House Affect                                     Specific Heat
  Green House Gases                                      Stored Mechanical
  Heat                                                   Temperature
  Joules                                                 Thermal
  Kinetic                                                Transmission
  Law of Conservation of Mass & Energy                   Vaporization
  Light                                                  Wavelength
  Liquid                                                 Work
  Matter



  Did you know… A piece of buttered toast contains
  about 315 kilojoules (315,000 joules) of energy.

  With that energy you could:
  -jog for 6 minutes
  -Bicycle for 10 minutes
  -Walk briskly for 15 minutes
  -Sleep for 1.5 hours
  -Run a car for 7 seconds at 50 miles per hour
  -Light a 60 watt light bulb for 1.5 hours.


                                                                               Page:____
Unit 1: Energy                         Earth Science-Ms. Gill                  Note Packet #2

Name:________________________________ Period:_________ Date:____________________

                                        A. WHAT IS ENERGY?

                          Energy is the ability to do ________________

  Work occurs when a _____________ causes an object to ___________ in the same direction
                                     as the force.


                   B. THERE ARE MANY DIFFERENT          FORMS      OF ENERGY


   THERMAL: The total ________ energy of           STORED MECHANICAL ENERGY:
   the particles in matter. (Molecular motion)     Stored energy due to a
                                                    change in the shape of
                                                   an object.
                                                   Ex: _______________


   SOUND: A type of mechanical energy. It is       LIGHT: A form of _______
   the energy produced when objects                energy that moves in a
   ________. Ex: tuning fork, bell                  __________
                                                   Ex: lamp, stars




   MECHNICAL: Energy                               SOLAR: All forms of
   with which ______                               energy that come
   objects perform work.                            from the ______
   Ex: Wind, flowing water,
    using a hammer


   ELECTRICITY: A form                             NUCLEAR: Energy STORED
   of energy produced by                           in the ________ (center)
   the _____________                               of an atom.
   of ______________                                Ex: nuclear bombs



   CHEMICAL: Energy STORED                         GEOTHERMAL: Heat energy STORED
   in chemical ____ that can be                    within the ___________.
   released. Ex: food, fossil fuels,                Ex: Volcanic eruptions,
   battery acid                                    geysers



                                                                                    Page:____
Unit 1: Energy                       Earth Science-Ms. Gill                     Note Packet #2

                 C. All forms of energy can be classified as Kinetic or potential.
                     The two basic states of energy. So, what’s the difference?




             POTENTIAL ENERGY:                                    KINETIC ENERGY:

  1) Potential energy is stored energy due to        1)Kinetic is energy of _________________
  and object’s __________________
                                                     2) Kinetic depends on the
  2) An object that is lifted from its position      __________________ and the
  on Earth has gravitational potential Energy        _____________________ of an object.
  which depends on ______________ and
  mass                                               3) Faster objects have
                                                     ____________________ kinetic energy than
  3) Massive objects have                            slower objects.
  _________________ potential energy than
  less massive objects

  4) An object at a higher elevation will have
  _______________ potential energy than an
  object at a lower elevation




                                                                                     Page:____
Unit 1: Energy                       Earth Science-Ms. Gill                      Note Packet #2

                                   D. Energy Transformations:
   The law of conservation of Energy states that energy cannot be created or destroyed it simply
   changes form. Energy has always existed in one form or another! This law is also true of mass!

                            Law of conservation of Mass and Energy:
                                   Mass/ NRG ____________
                                 Mass/ NRG ______________

                                Mass/ Energy can only __________



During energy changes, if one body is losing
energy, the other is __________________
energy.

During energy changes, the total energy
__________________________________.

Energy always flows from _______________ to
_______________ (source to sink)


                                 Figure 1:                                          Figure 2:
                                 Energy is flowing                                  Energy is flowing
                                 from _________                                     from _________
                                 to ____________                                    to ____________


 The exchange of energy will stop when EQUILIBRIUM IS REACHED, and both source and sink
                                   are the same temperature.
Unusable Energy: very often during the energy transformation process, some __________ energy is
          produced due to friction. This is wasted energy and is lost to the environment.


Examples of Energy Changes:

-Energy in a flashlight’s batteries becomes light
energy when the flashlight is turned on.

-Food is stored energy, when your body uses that
energy to do work it becomes kinetic energy.

- A television changes electrical energy into light
and sound energy


                                                                                         Page:____
Unit 1: Energy                    Earth Science-Ms. Gill                    Note Packet #2

                            E. Methods Of Energy transfer
  Energy moves from regions of _________ concentration to ________ concentrations of
                   energy, from ______________ to ____________.

            There are 3 methods of Energy Transfer : ____________________,
                  ____________________ & _____________________.

Method         Explanation of transfer           Best medium for         Examples
of transfer                                      energy transfer



               Direct contact (touch)            Conduction occurs       *Touching a hot
               Molecule To Molecule              fastest in _______      surface
Conduction                                                               *Electricity
               Conduction is a form of energy    __________ are the
               transfer by direct _________      best conductors of he
               of molecules                      heat energy.



               Energy transfer due to density    Occurs ONLY in          *Hot air or water
               differences                       _____ which are         rising
Convection                                       liquids and gases!      *Volcanoes
               Convection is a form of heat                              *Lava lamp
               transfer that occurs by up and
               down motions of a _______
               differences in ______



Radiation      Radiation is the transfer of                              *Gamma
               heat in _____.                                            *X-rays
                                                 No medium needed        *UV
               Electromagnetic (EM)                                      *Visible
               waves that move through a                                 *Infrared
               vacuum (empty space)                                      *Microwave
                                                                         *Radio
               Electromagnetic radiation
               travels at the speed of ______.




                                                                                    Page:____
Unit 1: Energy                                Earth Science-Ms. Gill                                    Note Packet #2

                                               F. Specific Heat Notes
1. HEAT: the energy of moving __________

2. HOT OBJECTS contain __________ heat than cold ones

3. All objects above __________ contain heat

4. Heat always flows from hot objects to cold objects until the both reach the _____ temperature.

5. The greater the difference in temperature between them, the _________ heat is transferred.

HOW IS HEAT TRANSFERRED BETWEEN OBJECTS? Name that type of heat transfer!




The University of the State of New York • THE STATE EDUCATION DEPARTMENT • Albany, New York 12234 • www.nysed.gov



       Reference Tables for




                                                                                                                           cm 1
 Physical Setting/EARTH SCIENCE
       Figure 1:                                           Figure 2:                               Figure 3:




                                                                                                                           2
  ________________                                    ________________                         _______________




                                                                                                                           3
          Radioactive Decay Data                                     Specific Heats of Common Materials
             Specific Heat




                                                                                                                           4
  RADIOACTIVE of heat neededHALF-LIFE
     Quantity DISINTEGRATION to                                             MATERIAL          SPECIFIC HEAT
    ISOTOPE                     (years)                                                       (Joules/gram • °C)
        raise One gram14of any                                           Liquid water               4.18




                                                                                                                           5
                   14                   3
  Carbon-14          C   N      5.7 × 10
   Substance by 1 degree Celsius
                       40
                                                                         Solid water (ice)          2.11
                         40        Ar                    9               Water vapor                2.00




                                                                                                                           6
  Potassium-40             K     40               1.3 × 10
                                   Ca
                                                                         Dry air                    1.01
   The higher the U 206Pb heat… 109
                   238 Specific
                                4.5 ×




                                                                                                                           7
  Uranium-238                                                            Basalt                     0.84
    the more energy is needed to                                         Granite                    0.79
                    87    87            10
         raise the temperature. 4.9 × 10
  Rubidium-87         Rb    Sr


                                                                                                                           8
                                                                         Iron                       0.45
  See the cover of the ESRT.                                         Copper                     0.38
               Equations                                                 Lead                       0.13                   9
                                                                                                                           10

                   distance between foci
  Eccentricity =                                         Properties of Water
Measuring Energy: Energy canaxis measures in many different ways. Typical units include:
                length of major be
________________________, _________________, & ___________________. 334 J/g
                                                                                                                           11




            change in field value         Heat energy gained during melting . . . . . . . . .
  Gradient =
                     distance
                                              Heat energy released during freezing . . . . . . . . 334 J/g
                                                                                                                           12




                   change in“Joule” is named afterenergy gained during vaporization . . . . . 2260 J/g
                 The term    value            Heat
  Rate of change =
                        time
                 English Scientist James Prescott Joulereleased during condensation . . . 2260 J/g
                                              Heat energy
                                                                                                                           13




             mass
  Density =      who lived from 1818 to 1889. He at 3.98°C . . . . . . . . . . . . . . . . . . . . . . . . 1.0 g/mL
            volume                            Density
                   discovered that Heat is a type of
                                                                                                                           14




                   Energy! 1,000 joules =1 kilojoule= 1 Btu
                                Average Chemical Composition
                                                                                                                           15




                        of Earth’s Crust, Hydrosphere, and Troposphere                                             Page:____
                                                                                                                           16




            ELEMENT                           CRUST                      HYDROSPHERE          TROPOSPHERE
             (symbol)           Percent by mass      Percent by volume    Percent by volume   Percent by volume
                                                                                                                           17




        Oxygen (O)                    46.10                  94.04              33.0                21.0
Unit 1: Energy                       Earth Science-Ms. Gill                      Note Packet #2

                                     Specific Heat Worksheet

   Did you know… Jumping into a pool on a hot summer day is refreshing because the water is cooler
   than the air around you and the ground under your feet. You may wonder why the water is cooler
   since the water, air, and ground are being heated by the same source- the Sun. One reason is that
   it takes more heat energy to raise the temperature of some substances than others. The amount
   of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius is called
   the specific heat of that substance. Water has a specific heat of 4.18 meaning it take 4.18 Joules
   of energy to raise 1 gram of water 1 degree Celsius. This value is high compared to the specific
   heats for other materials, such as various rocks or metals. Note the scientific unit for energy is
   the Joule. See the front of your ESRT for a complete list of specific heats for common materials.



                              Now complete these practice questions!

  1. What substance has the highest specific heat? ____________________________

  2. Why do metals have low specific heats? __________________________

  3. Why are pans made of metals with low specific heats? _____________________________

     ______________________________________________________________________

  4. Which takes more energy to raise its temperature, water or land? ___________________

  5. Which would heat up and cool off faster, land or water? __________________________

  6. Which of these substances would heat up fastest, water, iron or copper: ____________

  7. Which material would require the greatest amount of heat energy to raise its temperature

     from 50 °C to 100 °C ?

            A. 10 grams of granite          B. 10 grams of ice
            C. 10 grams of lead             D. 10 grams of iron

  8. Which pan would you use if you wanted to cook your food quickly? Copper pan or Iron pan?

  9. Which material would require the greatest amount of heat energy to raise its temperature

     from 50 C to 100 C?        A. granite B. ice   C. lead   D. iron

  10. Calculate how many joules would be required to raise 3 grams of water from 50 °C to 65 °C.


                                                                                        Page:____
Unit 1: Energy                   Earth Science-Ms. Gill                    Note Packet #2

                                     G. Phases of Matter:

  Matter is ___________________________________________________________

On Earth, matter exists in three states _________, ____________& ____________

Particle          Motion              How is it        Does it have a     Volume?
Arrangement       (Kinetic Energy)    bonded?          define shape?
Solid




Liquid




Gas




Phase Changes: Changes in states of matter result from changes in energy, specifically “heat
energy.” Consider the weightlifter, to push up the weights & lift them up requires energy… So
to push molecules apart also requires energy. Look at the molecules in the boxes above and
then complete the statements below. If you have to separate molecules write “put in energy,”
if molecules are coming together then write “give off energy.”
1. As you go from solid to liquid, you must ____________________________________.
2. As you go from liquid to solid, you must ____________________________________.
3. As you go from liquid to gas, you must _____________________________________.
4. As you go from gas to liquid, you must _____________________________________.

                           What are the phase changes called?




Solid                                  Liquid                                       Gas

                                                                                    Page:____
Unit 1: Energy                                             Earth Science-Ms. Gill   Note Packet #2

                                                                  H. Phase Change Diagram of Water
STATE EDUCATION DEPARTMENT • Albany, New York 12234 • www.nysed.gov

                    -Remember, as you change states of
ence Tables for




                                                                                             cm
                       matter, its all about energy!




                                                                                             1
ting/EARTH is neither Energy
                       SCIENCE
     -The law of conservation of




                                                                                             2
    states that energy           created
                   of destroyed it simply changes form.




                                                                                             3
ta                        Specific Heats of Common Materials
HALF-LIFE-Therefore, going formSPECIFIC HEAT
                                solid to liquid




                                                                                             4
                  MATERIAL
 (years)                        (Joules/gram • °C)
                  you put energy in (ENERGY IS
                        Liquid water           4.18




                                                                                             5
            3
     5.7 × 10     ABSORBED) and then when you
                        Solid water (ice)      2.11
             9  reverse the process and go from
                        Water vapor            2.00

                                                                                             6
     1.3 × 10
                 liquid Dry air to solid, you get the
                        back                   1.01
             9
     4.5 × 10 energy back! (ENERGY IS RELEASED)
                        Basalt                 0.84                                          7

            10
                                Granite                             0.79
     4.9 × 10
                                                                                             8


                                Iron                                0.45
                                Copper                              0.38
                                                                                             9




                                Lead                                0.13
                                                                                             10




                                    Properties of Water
                                                                                             11




                Heat energy gained during melting . . . . . . . . . . 334 J/g
                Heat energy released during freezing . . . . . . . . 334 J/g
                                                                                             12




                Heat energy gained during vaporization . . . . . 2260 J/g
                Heat energy released during condensation . . . 2260 J/g
                                                                                             13




                Density at 3.98°C . . . . . . . . . . . . . . . . . . . . . . . . 1.0 g/mL
                                                                                             14




age Chemical Composition
                                                                                             15




ust, Hydrosphere, and Troposphere
                                                                                             16




CRUST                           HYDROSPHERE                TROPOSPHERE
ss                    The energy volume
        Percent by volume   Percent by stored in theby volume
                                               Percent phase
                                                                                             17




             94.04        change process is called:
                                  33.0               21.0
               0.88 ________________________
                                                                                             18




                 0.48
                 0.49
                     There is NO temperature change
                                                                                             19




                 1.18
                 1.11
                         during a phase change.
                                                                                             20




                 0.33
                 1.42
                                                                                             21




                                            78.0
                               66.0
                                                                                             22




                 0.07           1.0          1.0                                                          Page:____
                                                                                             23




                                                     Eurypterus remipes
                                                                                             24
Tropopause
    Planetary Wind and Moisture                                                                             Polar front jet stream
      Belts in the Troposphere                              DRY
Unit 1:drawing on the right shows the Earth Science-Ms. Gill N.E.
   The Energy                                              WET                            60° N
                                                                                                               Notefront
                                                                                                                Polar
                                                                                                                      Packet #2
   locations of the belts near the time of an                    S.W.
   equinox. The locations shift somewhat Electromagnetic Energy Notes
                                         I.                     Winds
                                                                   DRY 30° N
   with the changing latitude of the Sun’s
   vertical ray. In the Northern Hemisphere,                   N.E.
Thethe beltsis always trying to achieve ____________________________.
    Earth shift northward in the summer                                                            Therefore, energy is
                                                               Winds
                                                                                                                            Subtropical
   and southward in the winter.                                   WET                               0°                      jet streams
constantly being re-distributed flowing from ________________ to ______________.
                     (Not drawn to scale)
                                                                            S.E.
                                                                            Winds

The Earth receives energy from two sources: ________________ & ___________________
                                                         DRY    30° S
                                                                            N.W.
                                                                            Winds

                                                                                      60° S
All matter radiates some      __________________________________________________
                                                       WET
                                                       S.E.
                                                                              DRY
                                                                                                         Polar front jet stream
The sun emits energy in ______ wavelengths of the electromagnetic spectrum. (ESRT pg. 14)

                                          Electromagnetic Spectrum

                           X rays                                            Microwaves

             Gamma rays             Ultraviolet                  Infrared                             Radio waves



              Decreasing wavelength                                                         Increasing wavelength
                                                  Visible light
                                       Violet     Blue   Green    Yellow Orange     Red                      (Not drawn to scale)


   14                                                                        Physical Setting/Earth Science Reference Tables — 2010 Edition


        Each type of energy differs in its _________________________. A wavelength is the
                               distance between two crests of the wave.




      Frequency is defined as a number of cycles per unit time.




                                                                                                                          Page:____
Unit 1: Energy                      Earth Science-Ms. Gill                    Note Packet #2

                                 Electromagnetic Spectrum Notes

  The Sun gives off light and heat in the form of
  _________________ and __________________                                           Sun
  electromagnetic energy. However, the short
  wavelengths (dangerous UV radiation, gamma rays & x-
  rays) are mostly absorbed by the ozone so they don’t
  reach earth’s surface. The ozone layer is found in the
  ____________________ layer of the atmosphere.
  Visible light passes through earth’s atmosphere with
  the greatest intensity. Less than half of the incoming
  solar radiation is received by the earth’s surface. The
  energy that does get through our atmosphere is
  absorbed by earths surface. The earth’s surface in
  turn reradiates the energy in the form of heat called               Earth
  ________________ radiation.




              J. Interactions between Electromagnetic Energy & the Environment:

1. _______________________UV absorbed by the ozone,
infrared absorbed by carbon dioxide, water vapor, methane, and
nitrous oxide. Good absorbers are good re-radiators!

2. _______________________ by clouds, ice, snow and water

3. ____________________ by aerosols, water droplets, ice
crystals, pollutants, dust, pollen

4. _______________________ light is bent as it moves through
varied densities

5. _______________________ when energy passes straight
through a medium

Less than __________________ of the incoming solar radiation is
received by the Earth.
Surface properties of the Earth & Absorption of Energy:
1. Color: Light (white) reflects & dark (black) absorbs
          Example: Pavement warms before grassy lawns.
2. Texture: Rough surface absorbs & smooth surface reflects
          Example: Snow and Ice reflect Insolation and remain cold.

                                                                                   Page:____
Unit 1: Energy                      Earth Science-Ms. Gill                        Note Packet #2

                                   K. The Green House Affect

What is Global Warming? An ___________ in the Earth’s Average surface air temperature.

You might often hear about the green house affect and its association with Global Warming. In the
atmosphere, CO2, Methane and H2O, (the greenhouse gases) act like the glass in the greenhouse by
trapping heat. These gases very similar manner as the glass sides and roof of a greenhouse keep in
heat. Let’s see how this works…


   Short wave radiation like ___________ passes
   through the glass of a greenhouse and is
   _______________ by the objects inside the
   greenhouse.

   These objects __________________ the energy
   as ____________________, which get reflected
   back into the greenhouse and warms the air.




  In Earth’s atmosphere, there are many gases that
  act like the glass of a greenhouse and ________
  long-wave radiation, keeping it in the Earth’s
  Atmosphere. Therefore, holding that heat in the
  atmosphere and raising the global temperature.

  These are known as ______________________.
                                                                          Earth
  They include water vapor, CFCs, Ozone, Methane
  Gas and Carbon dioxide.


Without some greenhouse gases, the Earth would be too _____________ for us to survive. But an
overload of greenhouse gases creates a problem as well!

How does too much CO2 contribute to Global warming? _______________________________

What human activities contribute to CO2 production and an increase in the greenhouse effect?
_________________________________________________________________________


                   If present trends continue possible effects may include:
                   -Rising sea levels due to melting polar ice caps;
                   -Increasing frequency and severity of storms and hurricanes;
                   -More frequent heat waves and droughts; and
                   -Relocation of major crop growing areas.
                                                                                         Page:____
Unit 1: Energy                    Earth Science-Ms. Gill                   Note Packet #2

                         L. Renewable and Non-Renewable Resources.


  What is an Non-Renewable Resource? An         What is a Renewable Resource? An energy
  energy resource that is                       resource that is
  __________________________________            _________________________________
  _________________________________             _________________________

  Examples:                                     Examples:
  __________________                            __________________
  __________________                            __________________
  __________________                            ________________
                                                ________________
                                                _______________
  To make our non-renewable resources last      ________________
  longer we can
   __________________                           A renewable resource produces less
  __________________                            _________ (substance that can harm living
  __________________                            things and/or the environment




                                               Only 7% of our energy consumption is
                                               from renewable resources!!! Try to make
                                               little changes in your life to reduce your
                                               dependence on Non-Renewable Resources!
                                               What do you plan to do?
                                               _______________________________
                                               _______________________________
                                               _______________________________
                                               _______________________________



                                                                                  Page:____

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Igneous Rocks
Igneous RocksIgneous Rocks
Igneous Rocks
 
Sedimentary rocks of the esrt
Sedimentary rocks of the esrtSedimentary rocks of the esrt
Sedimentary rocks of the esrt
 
Np complete
Np completeNp complete
Np complete
 

Learn about energy transformations and transfers

  • 1. UNIT 1: ENERGY  HONORS EARTH SCIENCE Stop Monkey-N-ing around and Go Green already! P.S. I’m Mookie the Monkey NOTE PACKET #2 MS. GILL
  • 2. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 Vocabulary: Absorption Mechanical Conduction Medium Convection Melting Condensation Non-Renewable Electricity Resources Electromagnetic Spectrum Nuclear Energy Phase Change Energy Transformations Potential Environment Radiation Equilibrium Reflection Forms of Energy Refraction Freezing Renewable Resources Frequency Scattering Gas Solid Geothermal Solar Global Warming Sound Green House Affect Specific Heat Green House Gases Stored Mechanical Heat Temperature Joules Thermal Kinetic Transmission Law of Conservation of Mass & Energy Vaporization Light Wavelength Liquid Work Matter Did you know… A piece of buttered toast contains about 315 kilojoules (315,000 joules) of energy. With that energy you could: -jog for 6 minutes -Bicycle for 10 minutes -Walk briskly for 15 minutes -Sleep for 1.5 hours -Run a car for 7 seconds at 50 miles per hour -Light a 60 watt light bulb for 1.5 hours. Page:____
  • 3. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 Name:________________________________ Period:_________ Date:____________________ A. WHAT IS ENERGY? Energy is the ability to do ________________ Work occurs when a _____________ causes an object to ___________ in the same direction as the force. B. THERE ARE MANY DIFFERENT FORMS OF ENERGY THERMAL: The total ________ energy of STORED MECHANICAL ENERGY: the particles in matter. (Molecular motion) Stored energy due to a change in the shape of an object. Ex: _______________ SOUND: A type of mechanical energy. It is LIGHT: A form of _______ the energy produced when objects energy that moves in a ________. Ex: tuning fork, bell __________ Ex: lamp, stars MECHNICAL: Energy SOLAR: All forms of with which ______ energy that come objects perform work. from the ______ Ex: Wind, flowing water, using a hammer ELECTRICITY: A form NUCLEAR: Energy STORED of energy produced by in the ________ (center) the _____________ of an atom. of ______________ Ex: nuclear bombs CHEMICAL: Energy STORED GEOTHERMAL: Heat energy STORED in chemical ____ that can be within the ___________. released. Ex: food, fossil fuels, Ex: Volcanic eruptions, battery acid geysers Page:____
  • 4. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 C. All forms of energy can be classified as Kinetic or potential. The two basic states of energy. So, what’s the difference? POTENTIAL ENERGY: KINETIC ENERGY: 1) Potential energy is stored energy due to 1)Kinetic is energy of _________________ and object’s __________________ 2) Kinetic depends on the 2) An object that is lifted from its position __________________ and the on Earth has gravitational potential Energy _____________________ of an object. which depends on ______________ and mass 3) Faster objects have ____________________ kinetic energy than 3) Massive objects have slower objects. _________________ potential energy than less massive objects 4) An object at a higher elevation will have _______________ potential energy than an object at a lower elevation Page:____
  • 5. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 D. Energy Transformations: The law of conservation of Energy states that energy cannot be created or destroyed it simply changes form. Energy has always existed in one form or another! This law is also true of mass! Law of conservation of Mass and Energy: Mass/ NRG ____________ Mass/ NRG ______________ Mass/ Energy can only __________ During energy changes, if one body is losing energy, the other is __________________ energy. During energy changes, the total energy __________________________________. Energy always flows from _______________ to _______________ (source to sink) Figure 1: Figure 2: Energy is flowing Energy is flowing from _________ from _________ to ____________ to ____________ The exchange of energy will stop when EQUILIBRIUM IS REACHED, and both source and sink are the same temperature. Unusable Energy: very often during the energy transformation process, some __________ energy is produced due to friction. This is wasted energy and is lost to the environment. Examples of Energy Changes: -Energy in a flashlight’s batteries becomes light energy when the flashlight is turned on. -Food is stored energy, when your body uses that energy to do work it becomes kinetic energy. - A television changes electrical energy into light and sound energy Page:____
  • 6. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 E. Methods Of Energy transfer Energy moves from regions of _________ concentration to ________ concentrations of energy, from ______________ to ____________. There are 3 methods of Energy Transfer : ____________________, ____________________ & _____________________. Method Explanation of transfer Best medium for Examples of transfer energy transfer Direct contact (touch) Conduction occurs *Touching a hot Molecule To Molecule fastest in _______ surface Conduction *Electricity Conduction is a form of energy __________ are the transfer by direct _________ best conductors of he of molecules heat energy. Energy transfer due to density Occurs ONLY in *Hot air or water differences _____ which are rising Convection liquids and gases! *Volcanoes Convection is a form of heat *Lava lamp transfer that occurs by up and down motions of a _______ differences in ______ Radiation Radiation is the transfer of *Gamma heat in _____. *X-rays No medium needed *UV Electromagnetic (EM) *Visible waves that move through a *Infrared vacuum (empty space) *Microwave *Radio Electromagnetic radiation travels at the speed of ______. Page:____
  • 7. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 F. Specific Heat Notes 1. HEAT: the energy of moving __________ 2. HOT OBJECTS contain __________ heat than cold ones 3. All objects above __________ contain heat 4. Heat always flows from hot objects to cold objects until the both reach the _____ temperature. 5. The greater the difference in temperature between them, the _________ heat is transferred. HOW IS HEAT TRANSFERRED BETWEEN OBJECTS? Name that type of heat transfer! The University of the State of New York • THE STATE EDUCATION DEPARTMENT • Albany, New York 12234 • www.nysed.gov Reference Tables for cm 1 Physical Setting/EARTH SCIENCE Figure 1: Figure 2: Figure 3: 2 ________________ ________________ _______________ 3 Radioactive Decay Data Specific Heats of Common Materials Specific Heat 4 RADIOACTIVE of heat neededHALF-LIFE Quantity DISINTEGRATION to MATERIAL SPECIFIC HEAT ISOTOPE (years) (Joules/gram • °C) raise One gram14of any Liquid water 4.18 5 14 3 Carbon-14 C N 5.7 × 10 Substance by 1 degree Celsius 40 Solid water (ice) 2.11 40 Ar 9 Water vapor 2.00 6 Potassium-40 K 40 1.3 × 10 Ca Dry air 1.01 The higher the U 206Pb heat… 109 238 Specific 4.5 × 7 Uranium-238 Basalt 0.84 the more energy is needed to Granite 0.79 87 87 10 raise the temperature. 4.9 × 10 Rubidium-87 Rb Sr 8 Iron 0.45 See the cover of the ESRT.     Copper 0.38 Equations Lead 0.13 9 10 distance between foci Eccentricity = Properties of Water Measuring Energy: Energy canaxis measures in many different ways. Typical units include: length of major be ________________________, _________________, & ___________________. 334 J/g 11 change in field value Heat energy gained during melting . . . . . . . . . Gradient = distance Heat energy released during freezing . . . . . . . . 334 J/g 12 change in“Joule” is named afterenergy gained during vaporization . . . . . 2260 J/g The term value Heat Rate of change = time English Scientist James Prescott Joulereleased during condensation . . . 2260 J/g Heat energy 13 mass Density = who lived from 1818 to 1889. He at 3.98°C . . . . . . . . . . . . . . . . . . . . . . . . 1.0 g/mL volume Density discovered that Heat is a type of 14 Energy! 1,000 joules =1 kilojoule= 1 Btu Average Chemical Composition 15 of Earth’s Crust, Hydrosphere, and Troposphere Page:____ 16 ELEMENT CRUST HYDROSPHERE TROPOSPHERE (symbol) Percent by mass Percent by volume Percent by volume Percent by volume 17 Oxygen (O) 46.10 94.04 33.0 21.0
  • 8. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 Specific Heat Worksheet Did you know… Jumping into a pool on a hot summer day is refreshing because the water is cooler than the air around you and the ground under your feet. You may wonder why the water is cooler since the water, air, and ground are being heated by the same source- the Sun. One reason is that it takes more heat energy to raise the temperature of some substances than others. The amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius is called the specific heat of that substance. Water has a specific heat of 4.18 meaning it take 4.18 Joules of energy to raise 1 gram of water 1 degree Celsius. This value is high compared to the specific heats for other materials, such as various rocks or metals. Note the scientific unit for energy is the Joule. See the front of your ESRT for a complete list of specific heats for common materials. Now complete these practice questions! 1. What substance has the highest specific heat? ____________________________ 2. Why do metals have low specific heats? __________________________ 3. Why are pans made of metals with low specific heats? _____________________________ ______________________________________________________________________ 4. Which takes more energy to raise its temperature, water or land? ___________________ 5. Which would heat up and cool off faster, land or water? __________________________ 6. Which of these substances would heat up fastest, water, iron or copper: ____________ 7. Which material would require the greatest amount of heat energy to raise its temperature from 50 °C to 100 °C ? A. 10 grams of granite B. 10 grams of ice C. 10 grams of lead D. 10 grams of iron 8. Which pan would you use if you wanted to cook your food quickly? Copper pan or Iron pan? 9. Which material would require the greatest amount of heat energy to raise its temperature from 50 C to 100 C? A. granite B. ice C. lead D. iron 10. Calculate how many joules would be required to raise 3 grams of water from 50 °C to 65 °C. Page:____
  • 9. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 G. Phases of Matter: Matter is ___________________________________________________________ On Earth, matter exists in three states _________, ____________& ____________ Particle Motion How is it Does it have a Volume? Arrangement (Kinetic Energy) bonded? define shape? Solid Liquid Gas Phase Changes: Changes in states of matter result from changes in energy, specifically “heat energy.” Consider the weightlifter, to push up the weights & lift them up requires energy… So to push molecules apart also requires energy. Look at the molecules in the boxes above and then complete the statements below. If you have to separate molecules write “put in energy,” if molecules are coming together then write “give off energy.” 1. As you go from solid to liquid, you must ____________________________________. 2. As you go from liquid to solid, you must ____________________________________. 3. As you go from liquid to gas, you must _____________________________________. 4. As you go from gas to liquid, you must _____________________________________. What are the phase changes called? Solid Liquid Gas Page:____
  • 10. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 H. Phase Change Diagram of Water STATE EDUCATION DEPARTMENT • Albany, New York 12234 • www.nysed.gov -Remember, as you change states of ence Tables for cm matter, its all about energy! 1 ting/EARTH is neither Energy SCIENCE -The law of conservation of 2 states that energy created of destroyed it simply changes form. 3 ta Specific Heats of Common Materials HALF-LIFE-Therefore, going formSPECIFIC HEAT solid to liquid 4 MATERIAL (years) (Joules/gram • °C) you put energy in (ENERGY IS Liquid water 4.18 5 3 5.7 × 10 ABSORBED) and then when you Solid water (ice) 2.11 9 reverse the process and go from Water vapor 2.00 6 1.3 × 10 liquid Dry air to solid, you get the back 1.01 9 4.5 × 10 energy back! (ENERGY IS RELEASED) Basalt 0.84 7 10 Granite 0.79 4.9 × 10 8 Iron 0.45 Copper 0.38 9 Lead 0.13 10 Properties of Water 11 Heat energy gained during melting . . . . . . . . . . 334 J/g Heat energy released during freezing . . . . . . . . 334 J/g 12 Heat energy gained during vaporization . . . . . 2260 J/g Heat energy released during condensation . . . 2260 J/g 13 Density at 3.98°C . . . . . . . . . . . . . . . . . . . . . . . . 1.0 g/mL 14 age Chemical Composition 15 ust, Hydrosphere, and Troposphere 16 CRUST HYDROSPHERE TROPOSPHERE ss The energy volume Percent by volume Percent by stored in theby volume Percent phase 17 94.04 change process is called: 33.0 21.0 0.88 ________________________ 18 0.48 0.49 There is NO temperature change 19 1.18 1.11 during a phase change. 20 0.33 1.42 21 78.0 66.0 22 0.07 1.0 1.0 Page:____ 23 Eurypterus remipes 24
  • 11. Tropopause Planetary Wind and Moisture Polar front jet stream Belts in the Troposphere DRY Unit 1:drawing on the right shows the Earth Science-Ms. Gill N.E. The Energy WET 60° N Notefront Polar Packet #2 locations of the belts near the time of an S.W. equinox. The locations shift somewhat Electromagnetic Energy Notes I. Winds DRY 30° N with the changing latitude of the Sun’s vertical ray. In the Northern Hemisphere, N.E. Thethe beltsis always trying to achieve ____________________________. Earth shift northward in the summer Therefore, energy is Winds Subtropical and southward in the winter. WET 0° jet streams constantly being re-distributed flowing from ________________ to ______________. (Not drawn to scale) S.E. Winds The Earth receives energy from two sources: ________________ & ___________________ DRY 30° S N.W. Winds 60° S All matter radiates some __________________________________________________ WET S.E. DRY Polar front jet stream The sun emits energy in ______ wavelengths of the electromagnetic spectrum. (ESRT pg. 14) Electromagnetic Spectrum X rays Microwaves Gamma rays Ultraviolet Infrared Radio waves Decreasing wavelength Increasing wavelength Visible light Violet Blue Green Yellow Orange Red (Not drawn to scale) 14 Physical Setting/Earth Science Reference Tables — 2010 Edition Each type of energy differs in its _________________________. A wavelength is the distance between two crests of the wave. Frequency is defined as a number of cycles per unit time. Page:____
  • 12. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 Electromagnetic Spectrum Notes The Sun gives off light and heat in the form of _________________ and __________________ Sun electromagnetic energy. However, the short wavelengths (dangerous UV radiation, gamma rays & x- rays) are mostly absorbed by the ozone so they don’t reach earth’s surface. The ozone layer is found in the ____________________ layer of the atmosphere. Visible light passes through earth’s atmosphere with the greatest intensity. Less than half of the incoming solar radiation is received by the earth’s surface. The energy that does get through our atmosphere is absorbed by earths surface. The earth’s surface in turn reradiates the energy in the form of heat called Earth ________________ radiation. J. Interactions between Electromagnetic Energy & the Environment: 1. _______________________UV absorbed by the ozone, infrared absorbed by carbon dioxide, water vapor, methane, and nitrous oxide. Good absorbers are good re-radiators! 2. _______________________ by clouds, ice, snow and water 3. ____________________ by aerosols, water droplets, ice crystals, pollutants, dust, pollen 4. _______________________ light is bent as it moves through varied densities 5. _______________________ when energy passes straight through a medium Less than __________________ of the incoming solar radiation is received by the Earth. Surface properties of the Earth & Absorption of Energy: 1. Color: Light (white) reflects & dark (black) absorbs Example: Pavement warms before grassy lawns. 2. Texture: Rough surface absorbs & smooth surface reflects Example: Snow and Ice reflect Insolation and remain cold. Page:____
  • 13. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 K. The Green House Affect What is Global Warming? An ___________ in the Earth’s Average surface air temperature. You might often hear about the green house affect and its association with Global Warming. In the atmosphere, CO2, Methane and H2O, (the greenhouse gases) act like the glass in the greenhouse by trapping heat. These gases very similar manner as the glass sides and roof of a greenhouse keep in heat. Let’s see how this works… Short wave radiation like ___________ passes through the glass of a greenhouse and is _______________ by the objects inside the greenhouse. These objects __________________ the energy as ____________________, which get reflected back into the greenhouse and warms the air. In Earth’s atmosphere, there are many gases that act like the glass of a greenhouse and ________ long-wave radiation, keeping it in the Earth’s Atmosphere. Therefore, holding that heat in the atmosphere and raising the global temperature. These are known as ______________________. Earth They include water vapor, CFCs, Ozone, Methane Gas and Carbon dioxide. Without some greenhouse gases, the Earth would be too _____________ for us to survive. But an overload of greenhouse gases creates a problem as well! How does too much CO2 contribute to Global warming? _______________________________ What human activities contribute to CO2 production and an increase in the greenhouse effect? _________________________________________________________________________ If present trends continue possible effects may include: -Rising sea levels due to melting polar ice caps; -Increasing frequency and severity of storms and hurricanes; -More frequent heat waves and droughts; and -Relocation of major crop growing areas. Page:____
  • 14. Unit 1: Energy Earth Science-Ms. Gill Note Packet #2 L. Renewable and Non-Renewable Resources. What is an Non-Renewable Resource? An What is a Renewable Resource? An energy energy resource that is resource that is __________________________________ _________________________________ _________________________________ _________________________ Examples: Examples: __________________ __________________ __________________ __________________ __________________ ________________ ________________ _______________ To make our non-renewable resources last ________________ longer we can __________________ A renewable resource produces less __________________ _________ (substance that can harm living __________________ things and/or the environment Only 7% of our energy consumption is from renewable resources!!! Try to make little changes in your life to reduce your dependence on Non-Renewable Resources! What do you plan to do? _______________________________ _______________________________ _______________________________ _______________________________ Page:____