physics

1 asstudent investigates the oscillation of a mass suspended from a spring.
the student pulls the mass down from its rest position p and then releases it so that it oscillates
vertically.
the student then follows the instructions listed to find the period of the oscillating mass.
1 count 10 complete oscillations.
2 divide the time on the stop-watch by 10.
3. start the stop-watch as the mass passes upwards through point p.
4 stop the stop-watch.
what is the correct order of these instructions?
a 153>54>2
b 3>91>4>2
c 3 54>51>2
d 453>2->1

2 a student measures the average speed of a cyclist in a race.

which quantities must she measure?

a the total time taken to complete the race and the time taken for the cyclist to reach her
highest speed

b _ the total time taken to complete the race and the total distance travelled by the cyclist at her
highest speed

c the total time taken to complete the race and the total distance travelled by the cyclist

d the time taken to reach her highest speed and the total distance travelled by the cyclist

3 the graph shows the motion of a sprinter.
10.0
speed 39
m/s
6.0
4.0
2.0
0
0 1.0 20 30 40 5.0 6.0 7.0
time/s
she accelerates steadily from rest to 8.0m/s in 4.0s.
how far does she travel in the last three seconds of her acceleration?
a 9.0m b 15m cc 16m d 24m

4 a person steps onto a bathroom scale.

the bathroom scale records both mass and weight.
which row shows the readings on the bathroom scale?
[mess [wont

a 60n 590 kg

b 60kg 590n

cc 590 kg 60n

d 590n 60kg

5 which equation is correct?
a density = mass x volume
b_ density = weight x volume
c_ mass = density x volume
d_ weight = density x volume

6 the diagrams show four identical objects. each object is acted on by only the forces shown.
which diagram shows an object in equilibrium?
a b cc d
10n 10n 10n 10n 10n 20n
20n 10n 10n 10n

7 a uniform wooden ruler is pivoted at its centre. a load of 2.0n is suspended from each end of the

ruler.

f

wooden ruler
load ~ } — load
pivot
2.0n 2.0n

the pivot exerts an upward force f on the ruler.
what is f equal to?
a 2.0n
b__ the weight of the ruler
c 4.0n
d_ 4.0n plus the weight of the ruler

8 the diagram shows part of a rollercoaster ride with the car at different positions.
the car runs freely down from position x to position y and up the hill on the other side.
car
ee,
leb <
kerrie ait
abo am
sepebelp dechy
aera wa nooobe
ldvdvdddd td bi addi
y
what happens to the energy in the kinetic store and the gravitational potential store of the car as
it moves from position x to position y?
| me. |
potential store
a decreases decreases
b decreases increases
cc increases decreases
d increases increases

9 inasmall power station, biofuel is used to generate electricity.
which energy store is reduced by this process?
a_ chemical
b_kinetic
c nuclear
d_ thermal

10 an electric car is charged overnight. in 8.0 hours, 180 mj of energy is transferred.
what is the power of the charger?
a 6.3kw b 380kw c 23mw d 1400mw

11 tractors have large tyres. these help to prevent the wheels from sinking into soft ground.
| tractor
g e\
~\ 2
a
:
which statement explains this?
a larger tyres exert a greater force on the ground.
b_ larger tyres exert a greater pressure on the ground.
c larger tyres exert a smaller force on the ground.
d larger tyres exert a smaller pressure on the ground.

12 brownian motion is the random motion of particles.
in which states of matter is brownian motion observed?
as gases, liquids and solids
b_sgases and liquids only
c gases and solids only
d liquids and solids only

13 a student investigates the relationship between the pressure of a gas and its volume at constant
temperature. he records his results in the table.
: pressure volume

1 10.0 24

2 74 32

3 4.0 63

4 13.0 19
what is the correct conclusion from the experiment?
a_ the volume decreases when the pressure increases.
b_ the volume increases when the pressure increases.
c_ the volume initially increases when the pressure increases, but then decreases.
d_ the volume is independent of the pressure.

14 a wooden wheel can be strengthened by putting a tight circle of iron around it.

wooden wheel
iron circle

which action would make it easier to fit the circle over the wood?

a cooling the iron circle only

b_ heating the iron circle

c heating the wooden wheel and cooling the iron circle

d heating the wooden wheel but not heating or cooling the iron circle

15 which diagram shows the processes happening during changes of state?
a b
ase boiling ligata solidification solid — condensation liquid melting eet
cc d
iti boili lidificati boili
solid pons, liquid ons, gas soli¢ =. figuid gas

16 a room is heated by a radiator. the diagrams x and y show two possible circulations of hot air,
which heat the room.
diagram x ceiling diagram y ceiling
radiator radiator
floor floor
li va,
which diagram and reason explain the heating of the room by convection?
[| aevem [acon
a x air density decreases when air is heated
b x air density increases when air is heated
cc y air density decreases when air is heated
d y air density increases when air is heated

17 which description and example are correct for a transverse wave?
[| eeseinton deme

a the direction of vibration is parallel sound
to the direction of propagation.

b the direction of vibration is parallel waves on a rope
to the direction of propagation.

c | the direction of vibration is at right angles sound
to the direction of propagation.

d | the direction of vibration is at right angles waves on a rope
to the direction of propagation.

18 straight wavefronts on the surface of a ripple tank approach a gap in a barrier. the diagram
shows how the wavefronts change shape as they pass through the gap.
barrier
straight wavefronts 1
mi, om)
|
what is the name of this effect?
a diffraction
b propagation
c reflection
d refraction

19 red, green and violet lights are part of the visible spectrum of light.
what is the order of colours from shortest to longest wavelength?
a red > green - violet
b_ red > violet > green
c_ violet > red — green
d_ violet > green > red

20 which diagram shows the image correctly formed by reflection?
a b
object image object image
mirror mirror
cc d
object image object image
mirror mirror

21 a student passes parallel rays of light through four different converging lenses. he measures the
distance x and the distance y for each experiment.
a
v
ae
' y :
which lens has the longest focal length?
[xen [ven |
a 46 2.0
b 5.1 3.1
cc 5.9 2.3
d 6.1 2.4

22 the table shows different types of wave in the electromagnetic spectrum.
radio . infrared visible ultraviolet gamma
microwaves : x-rays
waves waves light waves rays
where do all the waves travel at the same speed?
a inavacuum
bin diamond
c_inglass
din water

23 which statement about a sound that can be heard by a person with normal hearing is correct?
a_ the sound is a longitudinal wave with a frequency between 2.0 hz and 20 hz.
b_ the sound is a longitudinal wave with a frequency between 20 hz and 20000 hz.
c_ the sound is a transverse wave with a frequency between 2.0 hz and 2000 hz.
d_ the sound is a transverse wave with a frequency between 2.0 hz and 20 mhz.

24 ahard magnetic material can be used to make a permanent magnet.
a soft magnetic material can be used to make a temporary magnet.
which row shows whether iron and steel are hard or soft magnetic materials?
iron steel
a hard hard
b hard soft
cc soft hard
d soft soft

25 a battery is connected to an ammeter and a resistor.
grr
the ammeter reading is 0.20a.
an electrical insulator is connected in parallel with the resistor.
what is the ammeter reading?
a oa
b_ between 0a and 0.20a
c 0.20a
d_ greater than 0.20a

26 which unit is used to measure electromotive force (e.m.f.)?
a ampere
b_ joule
cc volt
d_ watt

27 which equation is correct for resistance r, potential difference (p.d.) v and current i?
a ree b r=v+i c r=i d r=vxi

28 in the diagram, rod r is suspended from an insulating thread.
insulating
thread
q
r
» moves away
from rod q
o
when the positively charged rod q is brought close to rod r, rod r moves away from rod q.
which conclusion can be made from this observation?
a_ rod ris charged, but it is not possible to identify the sign of the charge.
b- rod r must be positively charged.
c_ rod r must be negatively charged.
d_ rod r is uncharged.

29 in which heating system circuit would thermistors not be useful?
a to keep different rooms at different temperatures
b to turn an alarm on if the system overheats
c_ to turn a heating system off at a particular temperature
d_ to turn a heating system on when a sound is detected

30 which statement is correct?
a a use is included in a circuit to prevent the current becoming too high.
b_ a fuse should be connected to the neutral wire in a plug.
c_ anelectric circuit will only work if it includes a fuse.
d_ an earth wire is needed to prevent the fuse blowing.

31. which graph of current i against time t represents an alternating current (a.c.)?
a b
ddl. . k=.
0 0
| : | }
c d
0 0
| | }

32 the diagram shows a wire in the magnetic field between two poles of a magnet.
magnet
ie
(ny
wire
the current in the wire repeatedly changes between a constant value in one direction and a
constant value in the opposite direction, as shown in the graph.
current
0
| time
what is the effect on the wire?
a_ the force on the wire alternates between one direction and the opposite direction.
b_ the force on the wire is constant in size and direction.
c_ there is no force acting on the wire at any time.
d_ there is only a force on the wire when the current reverses.

33 a transformer has n, turns on its primary coil and n, turns on its secondary coil. the voltage
across the primary coil is v, and the voltage across the secondary coil is vs.
what is the relationship between these four quantities?
av, x vs = np x ns
p ye_ ne
vs ns
g ea
v; np
d va = np x ng
v;

34 the diagrams represent the protons, neutrons and electrons in different atoms and ions.
which diagram shows a negatively charged ion?
a b
q q
& key
. . @ = proton
o = neutron
o = electron
cc d
q q
o qd

35 which row correctly describes an example of radioactive decay?
original wo change or
emission
nucleus no change of element
a stable y change of element
b unstable a change of element
cc unstable a no change of element
d unstable b no change of element

36 a detector is used to monitor the emissions from a radioactive source over several days.
the table shows the count rate from the source at different times.
0 250
1 215
2 180
3 148
4 120
5 100
what is the half-life of the source?
a between 1 and 2 days
b_ between 2 and 3 days
c_ between 3 and 4 days
d_ between 4 and 5 days

37 what is the most effective precaution to reduce the risk when handling, storing or using a
radioactive source that emits y-rays?
a_ handle the source for the least possible time.
b_ have a fire extinguisher nearby when using the source.
c_ store the source at a low temperature.
d_ wear plastic safety goggles when handling the source.

38 approximately how long does the moon take to orbit the earth?
a 1day
b 7days
c 28days
d 365 days

39 the sun transfers energy to the earth through electromagnetic radiation.
what are two of the parts of the electromagnetic spectrum to which most of the energy belongs?
a gamma rays and x-rays
b _ infrared radiation and visible light
c_ microwaves and visible light
d_ radio waves and microwaves

40 what provides evidence that the universe is expanding?

a stars in galaxies outside the milky way are all red.

b_ the andromeda galaxy is moving toward the milky way.

c light from distant galaxies is shifted to longer wavelengths.

d_ the universe is 14 billion years old.
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