physics

1 four athletes run twice around a track. the table shows their times at the end of each lap.
which athlete runs the second lap the fastest?
time at end of time at end of
first lap/s second lap/s
a 22.99 47.04
b 23.04 47.00
cc 23.16 47.18
d 23.39 47.24

2 a racing car is fitted with an on-board computer. every time the car passes the starting line, the
computer records the distance travelled in the following two seconds.
which set of data shows that the car is increasing in speed during the two seconds?
a b
travelled/m travelled /m
0 0 0 0
1 100 1 90
2 200 2 180
cc d
travelled/m travelled/m
0 0 0 0
1 80 1 100
2 190 2 180

3. which row shows the gravitational field strength on the earth and the definition of velocity?
ce
a 9.8kg/n the change in the speed
b 9.8n/kg the change in the speed
cc 9.8kg/n the speed in a given direction
d 9.8n/kg the speed in a given direction

4 which statement about the weight of an object is correct?
a_ the weight of an object is the gravitational force per unit mass.
b_ the weight of an object is the gravitational force on an object.
c_ the weight is zero when the object is falling at constant speed in the earth’s atmosphere.
d_ the weight is zero when the object is in orbit around the earth.

5 the diagram shows a load—extension graph for a steel spring.
the length of the spring with no load attached is 2.0 cm.
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i i a i i nt i i il
a a
eeeeeeeeeeeeeeeeeeeeeee
9.8
terre ere de he aa
ss a
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4 6 prp ry ery eee
load vf n ees ee eee es see ees ey eee
ss ey
sss a
becerra
1.4 ferrer ee
ss a
sss a |
he 441
925-4
sss ey s|
om a a a a a a a a” a
6 nt a a fn lo i
9.0 eee eee eee
0 a em ea i a i i ee te oe
i a a at 7 a aaa i
eeceee eee
oy sues ceses sense dgauseussseeesarsaeseers
i i a a 7, al nn i i
i i a a > na i i i
ssr sss
0.6 ceeececceee ee ceeeeeeeeeee eee eee
fe gg el ee eel bg il gg
eg > ae ee eel bu dg il a gg
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o.4 cee hh
sss 87 20
esse 428 see eee eee eee eee
sss02 2000
wa sus’ deuuussuesuesgaeseeesseeeserseeseers
a
sf
p4000 0 |
(0) 5 a ah a ay ee as a ys a a nos
0 10 20 30 40 50 60 7.0 8.0
extension/cm
which load increases the length of the spring to 6.0cm?
a 0.5n b 1.0n c 1.5n d 2.0n

6 which force between two solid surfaces opposes motion?
a friction
bsgravity
c_ kinetic
d_ weight

7 abox of mass 2.0kg and weight 20n is carried to the top of some stairs.
1,2 : box
i 1.8m :
how is the work done against gravity on the box calculated?
a 20x18 b 20x 1.2 c 2.0x 1.2 d 20x 1.2 x 1.8

8 four submarines are submerged. the density of fresh water is 1000kg/m®* and the density of
sea water is 1020 kg/m*.
which submarine experiences the greatest pressure due to the water?
a b
water surface water surface
fresh water fresh water
100
m 120m
submarine ,
submarine
cc d
water surface water surface
sea water sea water
100
= 120m
submarine ,
submarine

9 the diagram shows the changes in state, 1, 2, 3 and 4, between solids, liquids and gases.
1 2
solid “> liquid “> gas
3 4
what are processes 2 and 3?
pf o2
a condensation melting
b condensation freezing
cc evaporation melting
d evaporation freezing

10 copper has a melting point of 1100°c.
what is the melting point in kelvin?
a 727k b 827k c 1373k d 1473k

11. a liquid at room temperature fills a flask and a glass tube to level x.
aes
eon
liquid

the flask is placed in ice and the liquid level in the tube changes to level y.
why does the level change to level y?
a the flask contracts.
b_ the flask expands.
c_ the liquid contracts.
d_ the liquid expands.

12 which row correctly describes the state of water at the temperatures shown?
]m0k | so0k | a80k | 400k |
a liquid liquid gas gas
b solid solid liquid liquid
cc solid liquid liquid gas
d solid liquid gas gas

13 a liquid is evaporating. the liquid is not boiling.
which statement about the liquid at an instant in time is correct?
a_ any molecule can escape and from any part of the liquid.
b_ any molecule can escape, but only from the liquid’s surface.
c_ only molecules with enough energy can escape and only from the liquid’s surface.
d only molecules with enough energy can escape, but from any part of the liquid.

14 a student stirs a hot liquid in a pan with a spoon.
which row explains which material the spoon should be made from so that the student does not
burn their hand?
a metal it is a good conductor
b metal it is a good insulator
cc wood it is a good conductor
d wood it is a good insulator

15 thermal radiation is emitted from all objects.
which mediums can thermal radiation travel through?
[aes [water [a [vena
a jv jv jv jv key
b v v v x ¥=can travel through this medium
cc x v v v x = cannot travel through this medium
d x x x v

16 the radius of a circular pond is 3.0m.
circular waves are made at the centre of the pond.
there are 10 whole waves between the centre and the edge of the pond and it takes 5.0s for all
10 waves to reach the edge.
what is the wavelength and the frequency of the waves?
[[wavetenatiin | fear |
a 0.30 0.50
b 0.30 2.0
cc 0.60 0.50
d 0.60 2.0

17 how does the direction of vibration of a longitudinal wave compare to its direction of propagation
and which wave example is longitudinal?
direction of vibration
compared to direction wave example
of propagation
a at right angles ultrasound waves
b at right angles ultraviolet waves
cc parallel ultrasound waves
d parallel ultraviolet waves

18 the diagram shows a ray of light reflecting from a mirror.
mirror
7
x l
qo :
y
if
which row shows the correct names for x, y and z?
a
a angle of incidence angle of reflection normal
b angle of incidence angle of reflection principal focus
cc angle of reflection angle of refraction normal
d angle of reflection angle of refraction principal focus

19 aconverging lens forms an image of an object placed in front of it.
onef ny
e _— image
what are the characteristics of the image?
a_ real, inverted, diminished
b real, upright, enlarged
c virtual, inverted, diminished
d virtual, upright, enlarged

20 white light can be split into different colours by passing it through a prism.
what is the name of this process?
a diffraction
b_ dispersion
c_ reflection
d refraction

21 excessive exposure to some regions of the electromagnetic spectrum can cause harmful effects
to people.
which regions cause mutation of cells in the body, skin burns and internal heating of body cells?
mutation of cells skin burns inne tall beat
of body cells
a radio waves infrared visible light
b radio waves ultraviolet microwaves
cc x-rays infrared microwaves
d x-rays ultraviolet visible light

22 a pulse of sound is produced at the bottom of a boat. the sound travels through the water and is
reflected from a shoal of fish. the sound reaches the boat again 1.2s after it is produced. the
speed of sound in the water is 1500 m/s.

pen
shoal of fish
“saree
how far below the bottom of the boat is the shoal of fish?
a 450m b 900m c 1800m d 3600m

23 the frequency of a sound wave increases from 31 000 hz to 32 000 hz.
what is the nature of the wave and how does it sound to a human with normal hearing?
a itis a longitudinal wave with a decreasing pitch.
b_itis a transverse wave with an increasing pitch.
c_itis a longitudinal wave that cannot be heard by a human with normal hearing.
d_ itis a transverse wave that cannot be heard by a human with normal hearing.

24 small compasses are used to determine the direction of a magnetic field.
which diagram shows the direction that the compass needles point when placed near the n and
s poles of a bar magnet?
a b
2 © o ©
cc d
io ) © ©

25 a metal bar is placed inside a current-carrying coil, as shown in diagram 1.
there is a small current in the coil. the bar holds a few nails, as shown in diagram 2.
diagram 1 diagram 2
when there is no current in the coil, the nails drop off.
which row is correct?
metal from which effect of a larger
the bar is made current in the coil
a soft iron it makes no difference
b soft iron the bar holds more nails
cc steel it makes no difference
d steel the bar holds more nails

26 there is a current j in a resistor of resistance r. the potential difference (p.d.) across the resistor
is v.
which equation gives the power p dissipated by the resistor?
a p=ir b p=iv c p=l p p=l
r vv

27 a student tests the electrical conduction of four materials.

e = aluminium
e iron
e plastic
e silver

which materials are good conductors of electricity?

a aluminium, iron and silver

b_ aluminium and silver only

c "iron, silver and plastic

d plastic only

28 this question is about the potential difference (p.d.) across, and the current in, a variable resistor.
‘ p.d. ‘
————
current | <
variable
resistor
the resistance of the variable resistor is increased.
which statement is correct?
a_ the current can remain constant if the p.d. is decreased.
b_ the current can remain constant if the p.d. is increased.
c_ the p.d. can remain constant if the current is kept constant.
d_ the p.d. can remain constant if the current is increased.

29 diagram 1 shows a resistor connected in a circuit. diagram 2 shows an identical resistor
connected in parallel with the first resistor.
diagram 1 diagram 2
what is the combined resistance of the two resistors in diagram 2?
a greater than in the circuit of diagram 1
b less than in the circuit of diagram 1, but greater than zero
c_ the same as in the circuit of diagram 1
d zero

30 where must a fuse be connected in a mains electric circuit?
a the earth wire only
b | the live wire only
c_ the neutral wire only
d the live wire and the earth wire

31 which graph does not show the correct trend for the force f causing the turning effect on the coil
in a d.c. motor?
a b
0 0
0 number of turns 0 current
on the coil
cc d
f f
0 0
0) strength of the 0 weight of
magnetic field the motor

32 which statement about the structure of an atom is correct?
a negative electrons surround a neutral nucleus.
b_ negative electrons surround a positive nucleus.
c_ positive electrons surround a neutral nucleus.
d_ positive electrons surround a negative nucleus.

33 four statements about isotopes of a certain element are listed.
which statement about the isotopes must be correct?
a_ they are radioactive.
b_ they are unstable.
c_ they have the same number of neutrons.
d_ they have the same number of protons.

34 what makes a contribution to a person’s annual dose of ionising radiation?
a __ food and drink
b greenhouse gases
c_ mobile phone masts
d_ radio and tv transmissions

35 the emissions from a radioactive source pass through a sheet of lead that is 10 mm thick.
ae type of radiation is emitted from the source and how is the radiation affected by an electric
ield?
[|e oration | efecto eect el on relation
a a radiation deflected
b a radiation not deflected
cc y radiation deflected
d y radiation not deflected

36 radioactive waste is often mixed with liquid glass. this mixture solidifies and is stored in steel
drums.
why is this process used to store radioactive waste?
a it reduces the decay rate.
b_ it reduces the half-life of the waste.
c_ the waste is contained in a solid block so it cannot leak out.
d_ the glass is transparent so the waste can be seen.

37 which planet is classed as a rocky planet?
a jupiter
b- saturn
c uranus
d venus

38 what is the cause of the phases of the moon?
a_ the movement of the earth around the sun
b_ the movement of the moon around the sun
c the movement of the moon around the earth
d_ the movement of the sun around the moon

39 what makes up the universe?
a many billions of galaxies
b~ mercury, venus, the earth, mars, jupiter, saturn, uranus and neptune only
c_ the sun, the earth and the moon only
d_ the solar system only

40 the sun mostly consists of which gases?
a helium and hydrogen
b helium and nitrogen
c_ hydrogen and oxygen
doxygen and nitrogen

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