SlideShare une entreprise Scribd logo
1  sur  17
Télécharger pour lire hors ligne
PHYSICS
2 uNrr
GeneralInstructions
o Assessment
TaskNo. 4
. Weighting- 40Yo
o Readingtime - 5 minutes
r Working time - 2 hours
. PhysicsFormulae&Data Sheetsare
attachedto theback of this paper.
. The Multiple ChoiceAnswer Sheetis
attachedto theback of this paper.
Carefully tearit off readyfor useand
write yournameon it.
NAME:
TEACHER:
2004
P R E L I M I N A R Y C O U R S E
F I N A L E X A M I N A T I O N
This examinationhasTWO parts.
Part A Multiple Choice
Total marks(16)
. Attempt ALL Questions
o Mark your answerson the Multiple ChoiceAnswer
Sheetprovided.
o Allow about30 minutesfor this part.
Part B Extended Answer Questions
Total marks(50)
. Attempt ALL Questions
o Write your answersin the spaces
provided in this
ExamPaper.
o Allow about t hour and30 minutesfor this part.
MULTIPLE CHOICE QUESTIONS
Total Marks (16)
Attempt questions
1- 16
Allow about30 minutesfor this part
Answer the questionson the Multiple ChoiceAnswer Sheetprovided.
l. A popular Sydneyradio stationhasa transmittingfrequencyof 96.1MHz.
What is the wavelength
of thiswave in metres?
(A) 3.2x107
( B ) 3 . 1
x 1 0 6
(c) 3.1
(D) 0.32
L, An electromagneticwave may undergototal internal reflection when
(A) The wavetravelsfrom a medium where its velocity is relatively high to a
medium where its velocity is relatively low-
(B) The wave travelsfrom a medium where its velocity is relatively low to a
medium whereits velocity is relatively high.
(C) The angleof incidenceis largerthanthe angleof refraction-
(D) The angleof incidenceis smallerthan the critical angle.
3 The following diagramillustratesa soundwave appearingon the screenof an
oscilloscope.
Thespeed
of thewaveis343m/s. Eachhorizontal
grid divisiononthescreen
isworth5 x 10-3
seconds.
Determine
thewavelength
of thewave.
(A) 5.1m
(B) 15m
(C) 6em
(D) 1700
m
A / n n
t / t / t / I
+ Which of the following starswould havethe lowest surfacetemperature?
(A) blue giant
(B) yellow main sequence
(C) white dwarf
(D) red giant
5. The diagramsshowtwo differentcircuits.All resistorsareidentical.
Which statementaboutthe currentsflowine in the resistorsis correct?
(A) The currentin all resistorsis the same.
(B) The currentsin Rl and R2 areone quarterthe currentsin R3 andR4.
(C) The currentsin Rl andR2 aretwice the currentsin R3 andR4.
(D) The currentsin Rl and R2 arehalf the currentsin R3 and R4.
Which statementaboutelectricalpower is correct?
Poweris a measureof the rate at which electrical energyis changedinto other
forms of energy.
Powermeasures
how much electricalenergyis usedby an applianceeachtime
it is used.
Poweris a measureof the amount of energya power supply can supply to an
electricalcircuit.
The power of an energysourceis determinedby its voltage.
what propertyof a fuse wire makesit useful asa safetydevice in the home?
(A) It hasa relativelylow melting point.
(B) It canbereadily replaced.
(C) It hasa lower resistance
thanthe wires usedin therestof the circuit.
(D) It hasa large cross-sectionalarea.
6.
(A)
(B)
(c)
(D)
7.
8. Jennyrvasgivenfourpairsof coiledwires.Eachcoil waslinkedto its own DC
source.
Pair I
Pair?ww
Pair3ww
Fair 4
Which two pairs of coils did Jennycorrectly predict would attracteachother?
(A) Pairs2 and3
(B) Pairs1 and4
(C) Pairs3 and4
(D) PairsI and2
9. A carof mass3600kg is travellingin a circularpathof radius l0m at a speed
of
30km h-l- What is the sidewaysforce neededto keepthe carmoving in the circular
path?
t0.
(A)
(B)
(c)
(D)
(A)
(B)
(c)
(D)
A safetydeviceis utilised in a circuit in a house.When a dangerousamountof current
flows, the generatedmagneticfield from an electromagnet
in the circuits, is large
enoughto attracta switch, which breaksthe circuit. This safetydevice is called
O N
10800
N
25000
N
324000
N
a fuse
double insulation
earthing
a circuit breaker
I l. The displacement
vs time graphbelow showsgraphsof four differentmotions.
Time
Whichgraphshows
themotionof anobjectthat hasdecreasing
velocity?
(A) GraphP
(B) GraphQ
(C) GraphR
(D) GraphS
17,. Theinertiaof avehicleis its
(A) tendency
to remainatuniformvelocityor in restposition.
(B) massmultipliedbyitsvelocity
(C) change
in momentum
(D) mass
which statementcorrectly comparesthe termsluminosity andbrightness?
(A) Brightnessand luminosity both refer to the energyradiatedby a glowing
object.
(B) Luminosityis the energyradiatedper secondwhile brightnessis the energy
per squaremetrereceivedper second.
(C) Brightnessis the energyradiatedper secondwhile luminosity is the energyper
squaremetrereceivedper second.
(D) Luminosity is the powerof a starandbrightnessis the energyradiatedby a
glowing object.
q)
-
!)
C)
(g
U)
t3.
l+ { r"t of Christmastreelightscontainsten lampsconnected
in seriesasshownin the
olaSram.
When rhelamps are pluggedin urd swirchedon, it is found that lamps 1 to 9 glow
brightly butlamp l0 doesnot
Which of thefollowing statemenrbestexplainswhy lamp l0 is notglowingbrightly?
(A) Thefilamentoflampl0isbroken
(B) Thereis abreakin thewire leadingto lamp 10.
(C) Thelamps I to 9 areblockingthecurrentfromlamp 10.
(D) Theresistance
oflamp 10is toolow.
1 5 . The diagramshowstheresultsof testingthe penetratingability of differentkindsof
radiation,
labelledR, S andT.
Radiation
R
3mmalunrinium
RadiationS paper
RadiationT
Which alternativecorrectlynamesthe radiationtypes?
(A)
(B)
(c)
(D)
r 2 3 4 s 6 7 8 9 1 0
r !,, .1, .J-, .J-r rl, .,-i-, .,,j-r .A, .'j
RadiationR RadiationS RadiationT
beta samma alpha
beta alpha gamma
gamma beta alpha
qamma alpha beta
| 6" The velocity of object A relative to object B is defined asthe velocity of A
minus the velocity of B, or mathematically:
V , q n : V A - V B
Usethis definition to answer the following question.
Two vehicles,eachtravelling at 60km h-l, approachan intersection.
CarA approaches
from the southandcarB from the east.
--ln
t I
l u
l l h
tw$
e
Whatisthevelocityof carB relative
to carA?
(A) 60kmh-rSw
(B) 60kmh-'NE
(C) 85kmh-rSw
(D) 85kmh-tNE
EXTENDED ANSWER QUESTIONS
Total Marks (50)
Attempt questions17- 28
Allow about I hour and 30 minutesfor this part
Answerthe questionsin thespaceprovidedon this paper.
The elechomagneticradiation that reachesthe outer atmosphereof the Earth is z
approximately 1400 wm-2. If the distance from the sun to the Earth is
l-4 x 10" m and the distancefrom the Sun to Uranus is 2.g x l0l2 m, determine
the intensity of the electromagneticradiationreachingUranus.
Question17(2 marks)
Question 18 (4 marks)
4 rays of light areincident upon a mirrored surface.
(a) Identiff the shapeof the surface.
on the diagram,constructthe rays asthey reflect off the surface.
Describean application for the surface.
Marks
Marks
o)
(c)
QUESTION 19 (4 Marks)
The graphs below describethe sametransversewave.
T'ime
(s)
Distance
(m)
For this transversewave determine the:
(a) Wavelength:
(b) Amplitude:
(c) Frequency:
Marks
- 1 0
Displacement
(m)
(d) vertical displacementof point P, 20slater than the time shown above.
QUESTION20(5Marks)
Thisquestion
refers
to thefollowingelectric
circuit.
28V
ln theabovecircuitthereading
onthe
(a) Thepotentialdifference
across
the
voltmeteris 8V. Determine:
20C)resistor.
(b) The currentin the 20fJ resistor.
(c) The total resistanceof the circuit.
(d) The readingon the ammeter.
(e) Thepowerdissipated
by thewhole circuit.
QUESTION 21 (4 Marks)
This questionrefers to the Hertzsprung-Russell diagram below.
rtace Temperature(K)
(a) Identify the main sourceof emissionof radiation from stars of the type
Iocatedat position X.
(b) on the HR diagram clearly label the Main sequenceand the position of
White Dwarf stars.
(c) Our own Main Sequencestar, the Sunoemitsboth particles and radiation
in the direction of the Earth. A continuous stream of particles passes
the
Earth at speedsup to 700 km/s. Identify the particulate nature of this
solarwind.
QUESTION 22 (5 Marks)
Describean experimental method that could be usedto determine whether a
particular resistor,  obeysOhm's Law. As part of the method, draw a
diagram of the circuit you would use.
Question23(6 marks)
A studentperformedan experimentto measure
the way a beamof light was bentupon
enteringa transparent
prism. The following graphwasproducedfrom the measurements.
srn t
0.4
0.2
0.0
- - - - - - - - - _ t
(a)
0.0 0.1 0.2 0.3 0.4 0.5
st! r
Yl"t
relalionshipdoesthe datasuggest?use this relationshipto find the refractive
indexof the transparent
material.
(b) Given that the refractive index of the transparentmaterial is constant,assess
the
reliability of the aboveresults.
(c) Refractionis caused
by
1!" change
in verocityof a waveasit crosses
the
boundarybetween
two differentmedia. outiine howthechange
in velocityof
a wavefrontcauses
thewavefrontto bend. usea diagramin your answer.
Question
24(4marks)
Peter
cycles
to school
fromhome.Thegraphrepresents
hisjourney.
{
5
c
2
I
n
(a) What is Peter'svelocity after70 seconds?
Marks
h
E
>
(}
o
(b) After how many secondsdid Peter stop for the first time?
(c) CalculatePeter'sacceleration
at the endof hisjourney (betweenpointsX andY).
(d) If Peterandhis bike havea combinedmassof 60 kg, calculatetheresultantforce
actingon Peterandhis bike ashe reduceshis velocity at the endof hisjourney
(betweenpointsX andY).
QUESTION 2f(4 Marks)
Assessthe effectsof sunspotactivity on Earth's power grid and satellite
communications.
Question
26(4 marks)
Thediagram
showsacarmovinguphillatconstant
velocity.
(a)
(b)
Marks
On the diagram,uselabelledarrowsto show all the forces acting on the carthat
determinethe velocitv of the car.
Write a statementto describethe net force on the car.
3
I
QUESTION 27(2 Marks)
The graphs below show the amount of radiation (energydensity) emitted from a
body at various temperaturesasa function of wavelength.
Wavelength(m) x 10-6
(a) At what wavelength (approximately) doesthe body emit the most radiation,
when the body is at a temperature of 6000K?
(b) The graphs show a trend betweenthe temperature of the body and the
dominant wavelength of radiation emitted from the body. Identify this trend.
Visible
Region
between
dotted
lines
o
X
a
V)
u)
()
bs
fi
C)
r-l
QUESTION 28 (6 Marks)
The graphbelow showsthe time variation of momentum for a 3 kg massmoving in a
straightline andsubjectedto a constantretardingforce. During this time the object
undergoes
a collision.
t0
mornenlum 8
d 3kgmoss^
(kgms-t1
o
6
2
0
Marks
- T - - r
l l
- t - +
t l
- 1 - +
l l
- -f --t
1 t
- + - +
r l
_ T _ - T
l l
- 1 - t
l l
- + - +
l l
- + - +
l l
= * - J
- T
I
_ T
I
- f
I
- T
I
- - r
I
-+
I
I
- T
- T
I
--t
I
- T
I
- - T
I
- +
I
T - T
r l
+ - +
5 6 7 8 I 1 0 1 1 1 2 1 3
time {s)
(a) Find the speedof themassattime t:3s.
(b) Determinethe magnitudeof theretardingforce actingon the 3 kg massat time
t : 3 s .
(c) At t:6s, the3 kg masscollidesheadon with a stationaryI kg mass. The two
masses
moveoff in the samestraightline. Calculatethespeedof the lkg mass
immediatelyafterthe collision.
2 3 t ,
- + - t
l t
- t - t
l l
--f - -t
l l
l l
I
+
I
+
I
+
I
- + - t
I t
-T--t
f f
- + - +
1 l

Contenu connexe

Similaire à 11pf2004.pdf

Cbse 12 Class Physics Sample Paper 2010 Model 2
Cbse 12 Class Physics Sample Paper 2010 Model 2Cbse 12 Class Physics Sample Paper 2010 Model 2
Cbse 12 Class Physics Sample Paper 2010 Model 2Sunaina Rawat
 
physics-class-xii-sample-paper-test-01-for-board-exam-2023-answers.pdf
physics-class-xii-sample-paper-test-01-for-board-exam-2023-answers.pdfphysics-class-xii-sample-paper-test-01-for-board-exam-2023-answers.pdf
physics-class-xii-sample-paper-test-01-for-board-exam-2023-answers.pdfFrancis355941
 
2023 Physics New Pattern
2023 Physics New Pattern 2023 Physics New Pattern
2023 Physics New Pattern study material
 
Cbse Class 12 Physics Sample Paper 2010 Model 1
Cbse Class 12 Physics Sample Paper 2010 Model 1Cbse Class 12 Physics Sample Paper 2010 Model 1
Cbse Class 12 Physics Sample Paper 2010 Model 1Sunaina Rawat
 
Class 12 Cbse Physics Sample Paper 2012 - 13
Class 12 Cbse Physics Sample Paper 2012 - 13Class 12 Cbse Physics Sample Paper 2012 - 13
Class 12 Cbse Physics Sample Paper 2012 - 13Sunaina Rawat
 
Aakash JEE Advance Solution Paper2
Aakash JEE Advance Solution Paper2Aakash JEE Advance Solution Paper2
Aakash JEE Advance Solution Paper2askiitians
 
GATE - Graduate Aptitude Test in Engineering || Physics Question Paper 2016 |...
GATE - Graduate Aptitude Test in Engineering || Physics Question Paper 2016 |...GATE - Graduate Aptitude Test in Engineering || Physics Question Paper 2016 |...
GATE - Graduate Aptitude Test in Engineering || Physics Question Paper 2016 |...SOURAV DAS
 
IIT-JEE Advanced 2014 Question Paper 2
IIT-JEE Advanced 2014 Question Paper 2IIT-JEE Advanced 2014 Question Paper 2
IIT-JEE Advanced 2014 Question Paper 2Eneutron
 

Similaire à 11pf2004.pdf (12)

cblephpu03.pdf
cblephpu03.pdfcblephpu03.pdf
cblephpu03.pdf
 
Cbse 12 Class Physics Sample Paper 2010 Model 2
Cbse 12 Class Physics Sample Paper 2010 Model 2Cbse 12 Class Physics Sample Paper 2010 Model 2
Cbse 12 Class Physics Sample Paper 2010 Model 2
 
nothing
nothingnothing
nothing
 
physics-class-xii-sample-paper-test-01-for-board-exam-2023-answers.pdf
physics-class-xii-sample-paper-test-01-for-board-exam-2023-answers.pdfphysics-class-xii-sample-paper-test-01-for-board-exam-2023-answers.pdf
physics-class-xii-sample-paper-test-01-for-board-exam-2023-answers.pdf
 
2023 Physics New Pattern
2023 Physics New Pattern 2023 Physics New Pattern
2023 Physics New Pattern
 
Cbse Class 12 Physics Sample Paper 2010 Model 1
Cbse Class 12 Physics Sample Paper 2010 Model 1Cbse Class 12 Physics Sample Paper 2010 Model 1
Cbse Class 12 Physics Sample Paper 2010 Model 1
 
AFMC Physics 2010
AFMC Physics  2010AFMC Physics  2010
AFMC Physics 2010
 
Class 12 Cbse Physics Sample Paper 2012 - 13
Class 12 Cbse Physics Sample Paper 2012 - 13Class 12 Cbse Physics Sample Paper 2012 - 13
Class 12 Cbse Physics Sample Paper 2012 - 13
 
Aieee physics -2008
Aieee physics -2008Aieee physics -2008
Aieee physics -2008
 
Aakash JEE Advance Solution Paper2
Aakash JEE Advance Solution Paper2Aakash JEE Advance Solution Paper2
Aakash JEE Advance Solution Paper2
 
GATE - Graduate Aptitude Test in Engineering || Physics Question Paper 2016 |...
GATE - Graduate Aptitude Test in Engineering || Physics Question Paper 2016 |...GATE - Graduate Aptitude Test in Engineering || Physics Question Paper 2016 |...
GATE - Graduate Aptitude Test in Engineering || Physics Question Paper 2016 |...
 
IIT-JEE Advanced 2014 Question Paper 2
IIT-JEE Advanced 2014 Question Paper 2IIT-JEE Advanced 2014 Question Paper 2
IIT-JEE Advanced 2014 Question Paper 2
 

Dernier

Naomi Baes's PhD Confirmation Presentation: A Multidimensional Framework for ...
Naomi Baes's PhD Confirmation Presentation: A Multidimensional Framework for ...Naomi Baes's PhD Confirmation Presentation: A Multidimensional Framework for ...
Naomi Baes's PhD Confirmation Presentation: A Multidimensional Framework for ...Naomi Baes
 
Mining Data for Ore Natural Language Processing to Identify Lithium Minerals ...
Mining Data for Ore Natural Language Processing to Identify Lithium Minerals ...Mining Data for Ore Natural Language Processing to Identify Lithium Minerals ...
Mining Data for Ore Natural Language Processing to Identify Lithium Minerals ...ORAU
 
Pests of Maize_Dr.UPR_Identification, Binomics, Integrated Pest Management
Pests of Maize_Dr.UPR_Identification, Binomics, Integrated Pest ManagementPests of Maize_Dr.UPR_Identification, Binomics, Integrated Pest Management
Pests of Maize_Dr.UPR_Identification, Binomics, Integrated Pest ManagementPirithiRaju
 
Phagocytosis Pinocytosis detail presentation
Phagocytosis Pinocytosis detail presentationPhagocytosis Pinocytosis detail presentation
Phagocytosis Pinocytosis detail presentationdhaduknevil1
 
Description of cultivating Duckweed Syllabus.pdf
Description of cultivating Duckweed Syllabus.pdfDescription of cultivating Duckweed Syllabus.pdf
Description of cultivating Duckweed Syllabus.pdfHaim R. Branisteanu
 
Advance pharmacology presentation..............
Advance pharmacology presentation..............Advance pharmacology presentation..............
Advance pharmacology presentation..............SIMRAN VERMA
 
Skin: Structure and function of the skin
Skin: Structure and function of the skinSkin: Structure and function of the skin
Skin: Structure and function of the skinheenarahangdale01
 
Basics Of Computers | The Computer System
Basics Of Computers | The Computer SystemBasics Of Computers | The Computer System
Basics Of Computers | The Computer SystemNehaRohtagi1
 
ROLE OF HERBS IN COSMETIC SKIN CARE: ALOE AND TURMERIC
ROLE OF HERBS IN COSMETIC SKIN CARE: ALOE AND TURMERICROLE OF HERBS IN COSMETIC SKIN CARE: ALOE AND TURMERIC
ROLE OF HERBS IN COSMETIC SKIN CARE: ALOE AND TURMERICsnehalraut2002
 
INFLUENCE OF PREHARVEST PRACTICES, ENZYMATIC AND TEXTURAL CHANGES, RESPIRATIO...
INFLUENCE OF PREHARVEST PRACTICES, ENZYMATIC AND TEXTURAL CHANGES, RESPIRATIO...INFLUENCE OF PREHARVEST PRACTICES, ENZYMATIC AND TEXTURAL CHANGES, RESPIRATIO...
INFLUENCE OF PREHARVEST PRACTICES, ENZYMATIC AND TEXTURAL CHANGES, RESPIRATIO...Ajay kamboj
 
RHEOLOGY MODIFIERS: ENHANCING PERFORMANCE AND FUNCTIONALITY
RHEOLOGY MODIFIERS: ENHANCING PERFORMANCE AND FUNCTIONALITYRHEOLOGY MODIFIERS: ENHANCING PERFORMANCE AND FUNCTIONALITY
RHEOLOGY MODIFIERS: ENHANCING PERFORMANCE AND FUNCTIONALITYDnyandaBopche
 
Introduction to Green chemistry ppt.pptx
Introduction to Green chemistry ppt.pptxIntroduction to Green chemistry ppt.pptx
Introduction to Green chemistry ppt.pptxMuskan219429
 
20240315 ACMJ Diagrams Set 2.docx . With light, motor, coloured light, and se...
20240315 ACMJ Diagrams Set 2.docx . With light, motor, coloured light, and se...20240315 ACMJ Diagrams Set 2.docx . With light, motor, coloured light, and se...
20240315 ACMJ Diagrams Set 2.docx . With light, motor, coloured light, and se...Sharon Liu
 
Non equilibrium Molecular Simulations of Polymers under Flow Saving Energy th...
Non equilibrium Molecular Simulations of Polymers under Flow Saving Energy th...Non equilibrium Molecular Simulations of Polymers under Flow Saving Energy th...
Non equilibrium Molecular Simulations of Polymers under Flow Saving Energy th...ORAU
 
1David Andress - The Oxford Handbook of the French Revolution-Oxford Universi...
1David Andress - The Oxford Handbook of the French Revolution-Oxford Universi...1David Andress - The Oxford Handbook of the French Revolution-Oxford Universi...
1David Andress - The Oxford Handbook of the French Revolution-Oxford Universi...klada0003
 
Theory of indicators: Ostwald's and Quinonoid theories
Theory of indicators: Ostwald's and Quinonoid theoriesTheory of indicators: Ostwald's and Quinonoid theories
Theory of indicators: Ostwald's and Quinonoid theoriesChimwemweGladysBanda
 
AKSHITA A R ECOLOGICAL NICHE and Gauss lawpptx
AKSHITA A R ECOLOGICAL NICHE and Gauss lawpptxAKSHITA A R ECOLOGICAL NICHE and Gauss lawpptx
AKSHITA A R ECOLOGICAL NICHE and Gauss lawpptxharichikku1713
 
SHAMPOO : OVERVIEW OF SHAMPOO AND IT'S TYPES.
SHAMPOO : OVERVIEW OF SHAMPOO AND IT'S TYPES.SHAMPOO : OVERVIEW OF SHAMPOO AND IT'S TYPES.
SHAMPOO : OVERVIEW OF SHAMPOO AND IT'S TYPES.kapgateprachi@gmail.com
 
dkNET Webinar "The Multi-Omic Response to Exercise Training Across Rat Tissue...
dkNET Webinar "The Multi-Omic Response to Exercise Training Across Rat Tissue...dkNET Webinar "The Multi-Omic Response to Exercise Training Across Rat Tissue...
dkNET Webinar "The Multi-Omic Response to Exercise Training Across Rat Tissue...dkNET
 
Science9 Quarter 3:Latitude and altitude.pptx
Science9 Quarter 3:Latitude and altitude.pptxScience9 Quarter 3:Latitude and altitude.pptx
Science9 Quarter 3:Latitude and altitude.pptxteleganne21
 

Dernier (20)

Naomi Baes's PhD Confirmation Presentation: A Multidimensional Framework for ...
Naomi Baes's PhD Confirmation Presentation: A Multidimensional Framework for ...Naomi Baes's PhD Confirmation Presentation: A Multidimensional Framework for ...
Naomi Baes's PhD Confirmation Presentation: A Multidimensional Framework for ...
 
Mining Data for Ore Natural Language Processing to Identify Lithium Minerals ...
Mining Data for Ore Natural Language Processing to Identify Lithium Minerals ...Mining Data for Ore Natural Language Processing to Identify Lithium Minerals ...
Mining Data for Ore Natural Language Processing to Identify Lithium Minerals ...
 
Pests of Maize_Dr.UPR_Identification, Binomics, Integrated Pest Management
Pests of Maize_Dr.UPR_Identification, Binomics, Integrated Pest ManagementPests of Maize_Dr.UPR_Identification, Binomics, Integrated Pest Management
Pests of Maize_Dr.UPR_Identification, Binomics, Integrated Pest Management
 
Phagocytosis Pinocytosis detail presentation
Phagocytosis Pinocytosis detail presentationPhagocytosis Pinocytosis detail presentation
Phagocytosis Pinocytosis detail presentation
 
Description of cultivating Duckweed Syllabus.pdf
Description of cultivating Duckweed Syllabus.pdfDescription of cultivating Duckweed Syllabus.pdf
Description of cultivating Duckweed Syllabus.pdf
 
Advance pharmacology presentation..............
Advance pharmacology presentation..............Advance pharmacology presentation..............
Advance pharmacology presentation..............
 
Skin: Structure and function of the skin
Skin: Structure and function of the skinSkin: Structure and function of the skin
Skin: Structure and function of the skin
 
Basics Of Computers | The Computer System
Basics Of Computers | The Computer SystemBasics Of Computers | The Computer System
Basics Of Computers | The Computer System
 
ROLE OF HERBS IN COSMETIC SKIN CARE: ALOE AND TURMERIC
ROLE OF HERBS IN COSMETIC SKIN CARE: ALOE AND TURMERICROLE OF HERBS IN COSMETIC SKIN CARE: ALOE AND TURMERIC
ROLE OF HERBS IN COSMETIC SKIN CARE: ALOE AND TURMERIC
 
INFLUENCE OF PREHARVEST PRACTICES, ENZYMATIC AND TEXTURAL CHANGES, RESPIRATIO...
INFLUENCE OF PREHARVEST PRACTICES, ENZYMATIC AND TEXTURAL CHANGES, RESPIRATIO...INFLUENCE OF PREHARVEST PRACTICES, ENZYMATIC AND TEXTURAL CHANGES, RESPIRATIO...
INFLUENCE OF PREHARVEST PRACTICES, ENZYMATIC AND TEXTURAL CHANGES, RESPIRATIO...
 
RHEOLOGY MODIFIERS: ENHANCING PERFORMANCE AND FUNCTIONALITY
RHEOLOGY MODIFIERS: ENHANCING PERFORMANCE AND FUNCTIONALITYRHEOLOGY MODIFIERS: ENHANCING PERFORMANCE AND FUNCTIONALITY
RHEOLOGY MODIFIERS: ENHANCING PERFORMANCE AND FUNCTIONALITY
 
Introduction to Green chemistry ppt.pptx
Introduction to Green chemistry ppt.pptxIntroduction to Green chemistry ppt.pptx
Introduction to Green chemistry ppt.pptx
 
20240315 ACMJ Diagrams Set 2.docx . With light, motor, coloured light, and se...
20240315 ACMJ Diagrams Set 2.docx . With light, motor, coloured light, and se...20240315 ACMJ Diagrams Set 2.docx . With light, motor, coloured light, and se...
20240315 ACMJ Diagrams Set 2.docx . With light, motor, coloured light, and se...
 
Non equilibrium Molecular Simulations of Polymers under Flow Saving Energy th...
Non equilibrium Molecular Simulations of Polymers under Flow Saving Energy th...Non equilibrium Molecular Simulations of Polymers under Flow Saving Energy th...
Non equilibrium Molecular Simulations of Polymers under Flow Saving Energy th...
 
1David Andress - The Oxford Handbook of the French Revolution-Oxford Universi...
1David Andress - The Oxford Handbook of the French Revolution-Oxford Universi...1David Andress - The Oxford Handbook of the French Revolution-Oxford Universi...
1David Andress - The Oxford Handbook of the French Revolution-Oxford Universi...
 
Theory of indicators: Ostwald's and Quinonoid theories
Theory of indicators: Ostwald's and Quinonoid theoriesTheory of indicators: Ostwald's and Quinonoid theories
Theory of indicators: Ostwald's and Quinonoid theories
 
AKSHITA A R ECOLOGICAL NICHE and Gauss lawpptx
AKSHITA A R ECOLOGICAL NICHE and Gauss lawpptxAKSHITA A R ECOLOGICAL NICHE and Gauss lawpptx
AKSHITA A R ECOLOGICAL NICHE and Gauss lawpptx
 
SHAMPOO : OVERVIEW OF SHAMPOO AND IT'S TYPES.
SHAMPOO : OVERVIEW OF SHAMPOO AND IT'S TYPES.SHAMPOO : OVERVIEW OF SHAMPOO AND IT'S TYPES.
SHAMPOO : OVERVIEW OF SHAMPOO AND IT'S TYPES.
 
dkNET Webinar "The Multi-Omic Response to Exercise Training Across Rat Tissue...
dkNET Webinar "The Multi-Omic Response to Exercise Training Across Rat Tissue...dkNET Webinar "The Multi-Omic Response to Exercise Training Across Rat Tissue...
dkNET Webinar "The Multi-Omic Response to Exercise Training Across Rat Tissue...
 
Science9 Quarter 3:Latitude and altitude.pptx
Science9 Quarter 3:Latitude and altitude.pptxScience9 Quarter 3:Latitude and altitude.pptx
Science9 Quarter 3:Latitude and altitude.pptx
 

11pf2004.pdf

  • 1. PHYSICS 2 uNrr GeneralInstructions o Assessment TaskNo. 4 . Weighting- 40Yo o Readingtime - 5 minutes r Working time - 2 hours . PhysicsFormulae&Data Sheetsare attachedto theback of this paper. . The Multiple ChoiceAnswer Sheetis attachedto theback of this paper. Carefully tearit off readyfor useand write yournameon it. NAME: TEACHER: 2004 P R E L I M I N A R Y C O U R S E F I N A L E X A M I N A T I O N This examinationhasTWO parts. Part A Multiple Choice Total marks(16) . Attempt ALL Questions o Mark your answerson the Multiple ChoiceAnswer Sheetprovided. o Allow about30 minutesfor this part. Part B Extended Answer Questions Total marks(50) . Attempt ALL Questions o Write your answersin the spaces provided in this ExamPaper. o Allow about t hour and30 minutesfor this part.
  • 2. MULTIPLE CHOICE QUESTIONS Total Marks (16) Attempt questions 1- 16 Allow about30 minutesfor this part Answer the questionson the Multiple ChoiceAnswer Sheetprovided. l. A popular Sydneyradio stationhasa transmittingfrequencyof 96.1MHz. What is the wavelength of thiswave in metres? (A) 3.2x107 ( B ) 3 . 1 x 1 0 6 (c) 3.1 (D) 0.32 L, An electromagneticwave may undergototal internal reflection when (A) The wavetravelsfrom a medium where its velocity is relatively high to a medium where its velocity is relatively low- (B) The wave travelsfrom a medium where its velocity is relatively low to a medium whereits velocity is relatively high. (C) The angleof incidenceis largerthanthe angleof refraction- (D) The angleof incidenceis smallerthan the critical angle. 3 The following diagramillustratesa soundwave appearingon the screenof an oscilloscope. Thespeed of thewaveis343m/s. Eachhorizontal grid divisiononthescreen isworth5 x 10-3 seconds. Determine thewavelength of thewave. (A) 5.1m (B) 15m (C) 6em (D) 1700 m A / n n t / t / t / I
  • 3. + Which of the following starswould havethe lowest surfacetemperature? (A) blue giant (B) yellow main sequence (C) white dwarf (D) red giant 5. The diagramsshowtwo differentcircuits.All resistorsareidentical. Which statementaboutthe currentsflowine in the resistorsis correct? (A) The currentin all resistorsis the same. (B) The currentsin Rl and R2 areone quarterthe currentsin R3 andR4. (C) The currentsin Rl andR2 aretwice the currentsin R3 andR4. (D) The currentsin Rl and R2 arehalf the currentsin R3 and R4. Which statementaboutelectricalpower is correct? Poweris a measureof the rate at which electrical energyis changedinto other forms of energy. Powermeasures how much electricalenergyis usedby an applianceeachtime it is used. Poweris a measureof the amount of energya power supply can supply to an electricalcircuit. The power of an energysourceis determinedby its voltage. what propertyof a fuse wire makesit useful asa safetydevice in the home? (A) It hasa relativelylow melting point. (B) It canbereadily replaced. (C) It hasa lower resistance thanthe wires usedin therestof the circuit. (D) It hasa large cross-sectionalarea. 6. (A) (B) (c) (D) 7.
  • 4. 8. Jennyrvasgivenfourpairsof coiledwires.Eachcoil waslinkedto its own DC source. Pair I Pair?ww Pair3ww Fair 4 Which two pairs of coils did Jennycorrectly predict would attracteachother? (A) Pairs2 and3 (B) Pairs1 and4 (C) Pairs3 and4 (D) PairsI and2 9. A carof mass3600kg is travellingin a circularpathof radius l0m at a speed of 30km h-l- What is the sidewaysforce neededto keepthe carmoving in the circular path? t0. (A) (B) (c) (D) (A) (B) (c) (D) A safetydeviceis utilised in a circuit in a house.When a dangerousamountof current flows, the generatedmagneticfield from an electromagnet in the circuits, is large enoughto attracta switch, which breaksthe circuit. This safetydevice is called O N 10800 N 25000 N 324000 N a fuse double insulation earthing a circuit breaker
  • 5. I l. The displacement vs time graphbelow showsgraphsof four differentmotions. Time Whichgraphshows themotionof anobjectthat hasdecreasing velocity? (A) GraphP (B) GraphQ (C) GraphR (D) GraphS 17,. Theinertiaof avehicleis its (A) tendency to remainatuniformvelocityor in restposition. (B) massmultipliedbyitsvelocity (C) change in momentum (D) mass which statementcorrectly comparesthe termsluminosity andbrightness? (A) Brightnessand luminosity both refer to the energyradiatedby a glowing object. (B) Luminosityis the energyradiatedper secondwhile brightnessis the energy per squaremetrereceivedper second. (C) Brightnessis the energyradiatedper secondwhile luminosity is the energyper squaremetrereceivedper second. (D) Luminosity is the powerof a starandbrightnessis the energyradiatedby a glowing object. q) - !) C) (g U) t3.
  • 6. l+ { r"t of Christmastreelightscontainsten lampsconnected in seriesasshownin the olaSram. When rhelamps are pluggedin urd swirchedon, it is found that lamps 1 to 9 glow brightly butlamp l0 doesnot Which of thefollowing statemenrbestexplainswhy lamp l0 is notglowingbrightly? (A) Thefilamentoflampl0isbroken (B) Thereis abreakin thewire leadingto lamp 10. (C) Thelamps I to 9 areblockingthecurrentfromlamp 10. (D) Theresistance oflamp 10is toolow. 1 5 . The diagramshowstheresultsof testingthe penetratingability of differentkindsof radiation, labelledR, S andT. Radiation R 3mmalunrinium RadiationS paper RadiationT Which alternativecorrectlynamesthe radiationtypes? (A) (B) (c) (D) r 2 3 4 s 6 7 8 9 1 0 r !,, .1, .J-, .J-r rl, .,-i-, .,,j-r .A, .'j RadiationR RadiationS RadiationT beta samma alpha beta alpha gamma gamma beta alpha qamma alpha beta
  • 7. | 6" The velocity of object A relative to object B is defined asthe velocity of A minus the velocity of B, or mathematically: V , q n : V A - V B Usethis definition to answer the following question. Two vehicles,eachtravelling at 60km h-l, approachan intersection. CarA approaches from the southandcarB from the east. --ln t I l u l l h tw$ e Whatisthevelocityof carB relative to carA? (A) 60kmh-rSw (B) 60kmh-'NE (C) 85kmh-rSw (D) 85kmh-tNE
  • 8. EXTENDED ANSWER QUESTIONS Total Marks (50) Attempt questions17- 28 Allow about I hour and 30 minutesfor this part Answerthe questionsin thespaceprovidedon this paper. The elechomagneticradiation that reachesthe outer atmosphereof the Earth is z approximately 1400 wm-2. If the distance from the sun to the Earth is l-4 x 10" m and the distancefrom the Sun to Uranus is 2.g x l0l2 m, determine the intensity of the electromagneticradiationreachingUranus. Question17(2 marks) Question 18 (4 marks) 4 rays of light areincident upon a mirrored surface. (a) Identiff the shapeof the surface. on the diagram,constructthe rays asthey reflect off the surface. Describean application for the surface. Marks Marks o) (c)
  • 9. QUESTION 19 (4 Marks) The graphs below describethe sametransversewave. T'ime (s) Distance (m) For this transversewave determine the: (a) Wavelength: (b) Amplitude: (c) Frequency: Marks - 1 0 Displacement (m) (d) vertical displacementof point P, 20slater than the time shown above.
  • 10. QUESTION20(5Marks) Thisquestion refers to thefollowingelectric circuit. 28V ln theabovecircuitthereading onthe (a) Thepotentialdifference across the voltmeteris 8V. Determine: 20C)resistor. (b) The currentin the 20fJ resistor. (c) The total resistanceof the circuit. (d) The readingon the ammeter. (e) Thepowerdissipated by thewhole circuit.
  • 11. QUESTION 21 (4 Marks) This questionrefers to the Hertzsprung-Russell diagram below. rtace Temperature(K) (a) Identify the main sourceof emissionof radiation from stars of the type Iocatedat position X. (b) on the HR diagram clearly label the Main sequenceand the position of White Dwarf stars. (c) Our own Main Sequencestar, the Sunoemitsboth particles and radiation in the direction of the Earth. A continuous stream of particles passes the Earth at speedsup to 700 km/s. Identify the particulate nature of this solarwind.
  • 12. QUESTION 22 (5 Marks) Describean experimental method that could be usedto determine whether a particular resistor, obeysOhm's Law. As part of the method, draw a diagram of the circuit you would use.
  • 13. Question23(6 marks) A studentperformedan experimentto measure the way a beamof light was bentupon enteringa transparent prism. The following graphwasproducedfrom the measurements. srn t 0.4 0.2 0.0 - - - - - - - - - _ t (a) 0.0 0.1 0.2 0.3 0.4 0.5 st! r Yl"t relalionshipdoesthe datasuggest?use this relationshipto find the refractive indexof the transparent material. (b) Given that the refractive index of the transparentmaterial is constant,assess the reliability of the aboveresults. (c) Refractionis caused by 1!" change in verocityof a waveasit crosses the boundarybetween two differentmedia. outiine howthechange in velocityof a wavefrontcauses thewavefrontto bend. usea diagramin your answer.
  • 14. Question 24(4marks) Peter cycles to school fromhome.Thegraphrepresents hisjourney. { 5 c 2 I n (a) What is Peter'svelocity after70 seconds? Marks h E > (} o (b) After how many secondsdid Peter stop for the first time? (c) CalculatePeter'sacceleration at the endof hisjourney (betweenpointsX andY). (d) If Peterandhis bike havea combinedmassof 60 kg, calculatetheresultantforce actingon Peterandhis bike ashe reduceshis velocity at the endof hisjourney (betweenpointsX andY).
  • 15. QUESTION 2f(4 Marks) Assessthe effectsof sunspotactivity on Earth's power grid and satellite communications. Question 26(4 marks) Thediagram showsacarmovinguphillatconstant velocity. (a) (b) Marks On the diagram,uselabelledarrowsto show all the forces acting on the carthat determinethe velocitv of the car. Write a statementto describethe net force on the car. 3 I
  • 16. QUESTION 27(2 Marks) The graphs below show the amount of radiation (energydensity) emitted from a body at various temperaturesasa function of wavelength. Wavelength(m) x 10-6 (a) At what wavelength (approximately) doesthe body emit the most radiation, when the body is at a temperature of 6000K? (b) The graphs show a trend betweenthe temperature of the body and the dominant wavelength of radiation emitted from the body. Identify this trend. Visible Region between dotted lines o X a V) u) () bs fi C) r-l
  • 17. QUESTION 28 (6 Marks) The graphbelow showsthe time variation of momentum for a 3 kg massmoving in a straightline andsubjectedto a constantretardingforce. During this time the object undergoes a collision. t0 mornenlum 8 d 3kgmoss^ (kgms-t1 o 6 2 0 Marks - T - - r l l - t - + t l - 1 - + l l - -f --t 1 t - + - + r l _ T _ - T l l - 1 - t l l - + - + l l - + - + l l = * - J - T I _ T I - f I - T I - - r I -+ I I - T - T I --t I - T I - - T I - + I T - T r l + - + 5 6 7 8 I 1 0 1 1 1 2 1 3 time {s) (a) Find the speedof themassattime t:3s. (b) Determinethe magnitudeof theretardingforce actingon the 3 kg massat time t : 3 s . (c) At t:6s, the3 kg masscollidesheadon with a stationaryI kg mass. The two masses moveoff in the samestraightline. Calculatethespeedof the lkg mass immediatelyafterthe collision. 2 3 t , - + - t l t - t - t l l --f - -t l l l l I + I + I + I - + - t I t -T--t f f - + - + 1 l