physics

1. ameasuring cylinder contains water.
the diagrams show the measuring cylinder before and after some of the water is poured into a
beaker.
cm® cm?
250 250
225 225
200 200
175 175
150 150
125 125
100 100
15 75
50 50
25 25
f\ | nn
before after
how much water has been poured into the beaker?
a 51cm° b 52cm° c 55cm* d 63cm*

2 the diagram shows the speed-—time graph for a car.
speed y
x
0
0 time

which row describes the motion of the car at point x and at point y?
paint

a at rest moving with constant speed

b moving with constant speed at rest

cc moving with changing speed at rest

d moving with changing speed moving with constant speed

3 a ball is dropped in a vacuum from a height of 4.0m above the surface of mars. the acceleration
of the ball at a height of 2.0m is 3.8m/s’.
what is the acceleration of the ball at a height of 1.0m above the surface of mars?
a 1.9m/s? b 3.8m/s* c 5.7m/s? d 7.6m/s?

4 two objects are placed on a balance, one on each side, as shown.
which properties of the objects can be compared using the balance?
a weight, mass and volume
b_ weight and mass only
c_ volume and density
d_ density only

5  arectangular swimming pool is 50m long and 25 m wide.
it contains water at a depth of 2m.
the density of the water is 1000kg/m*.
what is the mass of the water in the pool?
a 2.5kg b  2500kg c 77000kg d 2500000kg

6 an object is rising vertically at constant speed through water. there are three vertical forces
acting on it: the weight w, the drag force d, and the upward force u.
which diagram shows the magnitude and direction of the vertical forces acting on the object?
a b cc d
u=3.0n u=3.0n
u=2.0n d=2.0n u=2.0n
d=1.0n
w=1.0n d=1.0n d=1.0n
w=2.0n
w=3.0n w=3.0n

7 which force produces heating during contact with a moving object?
a weight
b friction
c_ electrostatic force
d magnetic force

8 a metre rule is balanced at its midpoint.
it remains balanced when a 3.0n load is hung from the 40cm mark and a second load is hung
from the 80cm mark.
what is the weight of the second load?
a 1.0n b 1.5n c 3.0n d 9.0n

9 a student measures the length of a spring. she then attaches different weights to the spring. she
measures the length of the spring for each weight.
the table shows her results.
weight/n length/mm
0 520

1.0 524

2.0 528

3.0 533

4.0 537

5.0 540
what is the extension of the spring with a weight of 3.0n attached to it?
a 4mm b 5mm c 12mm d 13mm

10 which power station produces the greatest atmospheric pollution for each unit of energy
generated?
a agas fired power station
b- ahydroelectric power station
c_ anuclear power station
d = awind farm

11 a500n weight is raised through a height of 5cm.
how much work is done by the force?
a 25j b 100j c 2500j d 10000j

12 what is the unit of power?
a joule
b newton
c volt
d_ watt

13 the diagram shows a rectangular block of weight 16n. it is resting on a flat surface.
4.0cm
5.0cm
9.0cm

what is the pressure at the base of the block due to its weight?

a 0.089n/cm?

b  0.36n/cm?

c 0.80n/cm?

d 320n/cm?

14 a piston traps a mass of gas inside a cylinder. initially, the piston is halfway along the length of
the cylinder.
the piston is now moved towards the open end of the cylinder. the temperature of the gas
remains constant.
cylinder piston
m a
how are the density and the pressure of the gas affected by moving the piston?
[[ aersiy [pressure |
a decreases decreases
b decreases unchanged
cc increases decreases
d increases unchanged

15 which statement describes what happens to air particles when the air is heated?
a_ the particles move more slowly.
b_ the particles move more quickly.
c_ the particles move closer together.
d_ the particles vibrate faster.

16 what happens when the temperature of a liquid increases?
a_ the mass of the liquid increases, making the liquid less dense.
b_ the mass of the liquid increases, making the liquid more dense.
c_ the volume of the liquid increases, making the liquid less dense.
d_ the volume of the liquid increases, making the liquid more dense.

17 in which states of matter can thermal energy be transferred by convection?
a_ingases, liquids and solids
bin gases and liquids only
c_ in gases and solids only
d _ in liquids only

18 a transverse wave moves along a rope.
the diagram shows the position of the rope at one particular time.
rope
5x sq on
o > xg es y oo ss yh
oo q sp og y
nn >
w x sy z% yi
q go q g
yq yu
nees eee,
which two labelled points are one wavelength apart?
a wandx b wandz c xandz d yandz

19 the diagram shows a ray of light being reflected from a plane mirror.
ky
plane meg
“> ay z
which row identifies the angles of incidence and reflection?
angle of angle of
incidence reflection
a ww y
b ww z
cc x y¥
d x z

20 blue light has a typical wavelength of 5.0 x 10-’m and frequency of 0.60 x 10'° hz.
which row gives a typical wavelength and frequency for red light?
[| weveenats | feaveney
a 2.4x107%m 0.40 x 10° hz
b 2.4x10m 1.3 x 10°hz
c 6.9x 107m 0.40 x 10° hz
d 6.9x 107m 1.3.x 10° hz

21 which diagram shows what happens when a ray of white light passes through a prism?

a b
white white apecirant
light light

spectrum
cc d
spectrum

white white
light light spectrum

22 a television (tv) station transmits a signal to a television receiving dish.
the television has an on/off indicator light.
the television is switched on by a remote control which changes the indicator light from red to
green.
which electromagnetic wave used in these actions has the longest wavelength?
satellite
a ny receiving
} yf) dish
tv
station tv b = remote
control
indicator light
rary
red green
cc d

23 a sound wave has a wavelength of 0.024 m.
what is the frequency of this sound wave and is it audible to humans?
frequency audible
/hz to humans
a 140 yes
b 140 no
cc 14000 yes
d 14000 no

24 the diagram shows a bar magnet at rest on a smooth horizontal surface. a length of soft-iron
wire is held parallel to the magnet.
n
| corer wire
magnet
ss
the wire is released.
what happens?
a_ the wire moves away from the magnet.
b_ the wire moves towards the magnet.
c_ the wire’s centre stays in its present position and the wire rotates through 90° in a clockwise
direction.
d_ the wire’s centre stays in its present position and the wire rotates through 90° in an
anticlockwise direction.

25 aman walks across a carpet. he becomes negatively charged by friction with the carpet.
what happens as he touches a metal object connected to the earth?
a the man gains electrons.
b_ the man loses electrons.
c_ the man gains protons.
d_ the man loses protons.

26 a laboratory has a standard wire of known resistance. it also has other wires, made from the
same material as the standard wire, but of different lengths and diameters.
which wire would definitely have a resistance of less than the standard wire?
a longer larger
b longer smaller
cc shorter larger
d shorter smaller

27 the diagram shows a circuit.
which energy transfers occur?
a battery — lamp —> surrounding air
b battery > surrounding air — battery
c_ lamp => surrounding air — battery
d surrounding air — lamp — battery

28 x, y and z are lamps.
bes t+ o= t+ =
; ~
i y z
xx
in which lamps is there a current?
pf x fy | 2 |
a v x v key
b v x x ¥ = current in lamp
cc x v v x =no current in lamp
d x v x

29 the diagram shows a circuit.
which change causes the bulb in the circuit to become brighter?
a adecrease in light intensity
b_ adecrease in temperature
c_anincrease in light intensity
d_anincrease in temperature

30 the current in a kettle is 10a and the kettle is protected by a 13a fuse.
the owner of the kettle replaces the 13a fuse with a 3a fuse.
what happens when the kettle is switched on?
a_ the fuse melts and the kettle might be damaged.
b_ the fuse melts and the kettle is undamaged.
c_ the fuse does not melt and the kettle works correctly.
d_ the fuse does not melt but the kettle fails to work.

31 awire is moved down in a direction perpendicular to the magnetic field.
fz
three changes are suggested.
1 the speed of the movement of the wire is increased.
2 the magnetic field strength is decreased.
3 the direction of the magnetic field is reversed.
which changes increase the electromotive force (e.m.f.) induced in the wire?
a 1and3 b 1only c 2and3 d = 3only

32 in an experiment, a wire is held above a compass needle as shown.
“t°
an electric current is switched on in the wire and the compass needle is deflected.
which row explains why this happens and then describes what happens when the current is
reversed?
‘ what happens when
a why tts dappans the current is reversed
a there is a magnetic the compass needle deflects
field inside the wire in the opposite direction
b there is a magnetic the compass needle remains
field inside the wire deflected in the same direction
c there is a magnetic the compass needle deflects
field around the wire in the opposite direction
d there is a magnetic the compass needle remains
field around the wire deflected in the same direction

33 over time, the strength of the magnets in an electric motor decreases.
which row describes two ways to keep the motor running at its original speed?
current in number of turns

the coil on the coil
a decrease decrease
b decrease increase
cc increase decrease
d increase increase

34 a rechargeable battery contains lithium.
the lithium exists as positive lithium ions.
how does an ion of lithium differ from an atom of lithium?
a_ the ion has fewer electrons orbiting the nucleus.
b_ the ion has more electrons orbiting the nucleus.
c_ the nucleus of the ion has less charge.
d_ the nucleus of the ion is more positively charged.

35 an iron nuclide is represented by the symbol shown.
56
ogre
which statements about a nucleus of this iron nuclide are correct?
1 the nucleus contains 56 neutrons.
2 the nucleon number is 30.
3. the proton number is 26.
a 1and2 b 1and3 c 2and3 d = 3only

36 what is an artificial source of background radiation?
a x-ray machines in hospitals
b_ radon gas from rocks
c_ cosmic rays from the sun
d plants and other living things

37 a sample of a radioactive isotope has an initial rate of emission of 128 counts per minute and a
half-life of 4 days.
how long will it take for the rate of emission to fall to 32 counts per minute?
a 2days b 4days c 8days d 12 days

38 approximately how long does it take for the moon to make one complete orbit of the earth?
a 24 hours
b 1 month
c 1 -season
d 1 year

39 the sun has a mass of 2.0 x 10°°kg.
which element accounts for most of this mass?
a carbon
b_ hydrogen
c oxygen
d- uranium

40 the nearest star to the sun is proxima centauri at a distance of 4.2 light years.
which statements are correct?
1 telescope images of proxima centauri show it as it was 4.2 years ago.
2 if a spacecraft near proxima centauri sent a radio message to the earth, it would
take 4.2 years to arrive.
3. proxima centauri is outside the milky way galaxy.
a 1,2and3 b 1and2only c 1and3only d 2and3only
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