2. What is PHYSICS??
Branch of science concerning the study of
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natural phenomena, properties of matter and
energy also the connection between them.
Physics – Come from the Latin word physica
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meaning the science of natural things.
19th century – natural philosophy.
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Experimental observations and quantitative
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measurements.
3. Natural Phenomena??
Lightning and thunder.
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Sea waves and tides.
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Rain and sunshine.
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Earthquake and hurricane.
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LightningLightning is
electric current
4. This parabolaThis parabola-shaped lava
flow illustrates
GalileoGalileo's law of falling bodies as
well as blackbody radiation –
you can tell the temperature from the
color of the blackbody.
Cassiopeia ACassiopeia A – a
sphericallyCassiopeia A – a spherically
symmetric
remnant of the 1680 supernova
5. The astronaut and Earth
are both in free-fall
DispersionDispersion of
lightDispersion of light by a
prism
6. Everyday Objects?
List an everyday objects around you.
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1)
2)
3)
How they are related to physics concept?
Made based on physics concepts.
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By theories and experiments.
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Numerical analysis, calculus, computer
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simulations ( technology).
7. Physics is Quantitative
Experimental results in physics are numerical
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measurements and theories.
Use mathematics to give numerical results to
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match these measurements.
What is the differences between physics and
math?
8. ●PHYSICS
●Ultimately concerned with descriptions of the
material world, it tests its theories by comparing
the predictions of its theories with data
produced from the observations and
experimentation.
●MATHEMATICS
- Concerned with abstract logical patterns, not
limited by those observed in the real world.
9. Heat
Forces and
Nuclear physics Motion
Fields of
Light
Electronics study in
Physics
Electricity and
Waves
electromagnetism
10. 1.4 Understanding Measurement
Choosing an appropriate instrument to
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measure a physical quantity is important to
ensure that the measurement is accurate and
reproducible.
11. Common Measurement
Instrument
Measurement tape- measure length of
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several metres.
- accurate up to 0.01 m.
Metre rule – measure lengths of a few
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centimetres to a metre.
- accurate up to 0.1 cm
12. Vernier callipers – measure lengths of less
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than 10 cm.
- suitable for measuring
internal or external
diameter of round object
- accurate up 0.01 cm
Micrometer screw gauge
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- measure the very small readings.
- accurate up to 0.01 mm.
13. Consistency and Accuracy
Consistency
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-ability of the instrument to measure a
quantity with little or no deviation among the
measurement.
Accuracy
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- actual value or the nearer to the actual
value.
- how close the measurement to the actual
value.
