physics

1. which unit is a unit of weight?
a_ kilogram
b_kilojoule
c_ kilometre
d_ kilonewton

2 the graph represents the motion of a vehicle.
20 pee eee
speed
m/s
0 '
0 400
time/s
what is the distance travelled by the vehicle in 400 s?

a 20m b 400m c 4000m d 8000m

3 the diagram shows a distance-time graph for an object moving in a straight line.
12 ea eens eesceia ease
distance/m
0 i '
0 10 30
time/s
what is the average speed between x and y?
a 0.20m/s b 0.30m/s c 0.40m/s d 0.60m/s

4  aspace rocket travels to the moon.
the acceleration of free fall is greater on the earth than it is on the moon.
how do the mass and weight of the space rocket on the moon compare with their values on the
earth?
[ [mess onthe eon | _weighton the moon
a less than on the earth same as on the earth
b less than on the earth more than on the earth
cc same as on the earth less than on the earth
d same as on the earth more than on the earth

5 ashopkeeper pours rice into a dish that hangs from a spring balance. he records the reading.
(-™
9” spring balance
fe 14
es 2e
4 3
jh og
u
* an
wiwoxbu.
dish censeasy
a customer buys some pasta. the shopkeeper notices that the reading on the spring balance,
with just pasta in the dish, is the same as it was with just rice in the dish.
which quantity must be the same for the rice and for the pasta?
a density
b_ temperature
c volume
d_ weight

6 a student determines the density of an irregularly shaped stone. the stone is slowly lowered into
a measuring cylinder partly filled with water.
measuring
cylinder
a stone
\ )
no)
es
which other apparatus does the student need to calculate the density of the irregularly shaped
stone?
a abalance
ba thermometer
c ametre rule
d  astop-watch

7 four objects are moving.
which object has a zero resultant force acting on it?
a the object moving at a decreasing speed
b_ the object moving at an increasing speed
c_ the object moving at a constant speed in a circle
d_ the object moving at a constant speed in a straight line

8 the diagram shows a uniform metre rule. the rule is pivoted at its mid-point. a weight of 4.0n is
suspended from the rule at the 5cm mark. the rule is held by a string at the 30cm mark. the rule
is in equilibrium.

string metre rule
ocm mark 100cm mark
5 50
30 -
ivo'
4.0n o

what is the upward force that the string exerts on the rule?
a 0.67n b 4.0n c 6.0n d 9.0n

9 aan irregularly shaped metal plate is freely suspended from a point p and is in equilibrium, as
shown. point q is vertically below p.
q
which statement about the position of the centre of gravity of the metal plate is correct?
a ltisatp.
b_ itis atq.
c_sitis halfway between p and q.
d_ further investigation is needed to determine its position.

10 which row about the change of energy in the energy store must be correct?
rocess energy store ghatge er
p gy energy in store
a | water pumped up to a | gravitational potential increases
high-altitude dam energy of water
b_ | water pumped up toa kinetic energy decreases
high-altitude dam of water
cc air passes through gravitational potential increases
a wind turbine energy of air
d air passes through kinetic energy increases
a wind turbine of air

11 a rock of weight 50n falls a vertical distance of 7.0m from rest.
what is the change in the gravitational potential energy store of the rock?
a decrease of 7.1j
b_ decrease of 350 j
c increase of 7.1 j
d_ increase of 350j

12 achild runs up a set of stairs four times. the time taken for each run is recorded.
which time is measured when the child’s useful power is greatest?
a 10s b 20s c 30s d 40s

13 a woman has a weight of 600n. she stands on a horizontal floor. the area of her feet in contact
with the floor is 0.050 m?.
what is the pressure she exerts on the floor?
a 1.2 x 10°n/m?
b  2.4x 10°n/m?
c 1.2x10*n/m?
d 2.4 10*n/m?

14 gases, liquids and solids are made up of small particles.
which row gives the relative separation of the particles?
ee

a far apart far apart far apart
b far apart far apart close together
cc far apart close together | close together
d | close together | close together far apart

15 which statements about evaporation of water are correct?
1 evaporation causes the remaining liquid to cool.
2 during evaporation, the more energetic particles escape from the surface of the
liquid.
3 evaporation only happens at 100°c.
a 1,2and3 b jiand2only c t1and3only d 2and3 only

16 which surface is the worst absorber of infrared radiation?
a dull black
b_ dull white
c _ shiny black
d _ shiny white

17 the diagrams show graphs of displacement against time for four waves. all the graphs are drawn
to the same scale.
which wave has the largest amplitude and the highest frequency?
a b
displacement displacement
0 0
| time | time
cc d
displacement displacement
0 0
i time i time

18 a student draws a diagram to show the directions of a light ray reflecting off a plane mirror.
1 5 3
sle
what are the correct terms for the lines drawn?
normal

ray ray

a 1 2 3

b 1 3 2

cc 2 1 3

d 2 | 1

19 an object o is placed at point p near to a thin converging lens. the diagram shows three rays
from the top of o passing through the lens. each point f is one focal length from the centre of the
lens. each point 2f is two focal lengths from the centre of the lens.

an
p 2f q psa of
\ image

the object o is moved to point q on the diagram.
which type of image is produced when the object o is at point q?
a inverted and the same size as the object
b inverted and enlarged
c_ upright and the same size as the object
d_ upright and enlarged

20 which diagram shows the dispersion of white light by a glass prism?
a b
red van red
cc d
fs red fd red

21, which statement is correct?
a a remote controller emits microwave radiation.
b- aremote controller emits infrared radiation.
c aremote controller emits ultrasound.
d a remote controller emits ultraviolet radiation.

22 student x fires a starting pistol which produces smoke and sound. student y is standing 100m
away and sees the smoke the instant it is produced. the speed of sound in air is 340 m/s.
what is the time delay between student y seeing the smoke and hearing the sound?
a 0.29s b 0.59s c 17s d 34s

23 an unmagnetised piece of soft iron is placed close to a strong permanent magnet, as shown.
permanent soft iron
magnet
what is the induced polarity of end x of the soft iron and in which direction does the magnetic
force act on the soft iron?
: direction of force

a n to the left

b n to the right

cc ss to the left

d $s to the right

24 aplastic rod is rubbed with a cloth.
plastic ae
[yz cloth
the rod and the cloth both become charged as electrons move between them.
the rod becomes negatively charged.
which diagram shows how the rod becomes negatively charged and shows the final charge on
the cloth?
a b
electron electron
za. asia movement za. aie movement
(py final charge cpz final charge
on the cloth on the cloth
cc d
electron electron
pa zt movement pa aie movement
cz final charge ez final charge
on the cloth on the cloth

25 which particles move to cause a current in a copper wire?
a copper atoms
b_ electrons from the copper atoms
c protons from the copper nuclei
d neutrons from the copper nuclei

26 four students draw a circuit diagram of the apparatus used to measure the resistance of
resistor r.
which circuit is correct?
a b
i+} |
r r
cc d
r r

27 the battery on a bicycle is connected in parallel to its lamp and bell.
the circuit includes two switches, s; and so.
s,
bell ss;
the cyclist closes s, to light the lamp.
she then also closes sz to sound the bell.
what happens to the current in the battery and the power output from the battery when the cyclist
closes s2?
current in power output
the battery from the battery
a increases increases
b increases stays the same
cc stays the same increases
d stays the same stays the same

28 which symbol represents an electric heater?
a b cc d
sr cs a

29 a student connects the circuit shown.
-- k—_
1
bell 2
3
4
which switches must be closed for the bell to ring without lighting the lamp?
a 1 and 2 only b- 1and 3 only c 1,3and4 d 2,3and4

30 a double-insulated electrical appliance must be connected safely to the electricity supply.
which statement is correct?
a_ it must be connected with a fuse and an earth wire.
b_ it can be connected with a fuse only.
c_ it can be connected with an earth wire only.
d_ it does not need a fuse or an earth wire.

31 a simple electric generator induces an electromotive force (e.m.f.).
which modification would increase the induced e.m.f.?
a increase the number of turns in the coil of the generator.
b_ increase the distance between the magnetic poles.
c_ reduce the strength of the magnetic field around the coil.
d_ reverse the direction of the magnetic field.

32 the diagram shows a vertical wire carrying a current j placed between the poles of a magnet.
l
l }
what is the direction of the force on the wire exerted by the magnetic field?
a from n to s
b_ from s ton
c horizontal and at right angles to the direction from n to s
d parallel to the wire

33 what is an advantage of transmitting electricity at a high voltage?
a ltis faster.
b_sitis safer.
c_ less energy is wasted.
d_ less equipment is needed.

34 how are positive and negative ions formed from atoms?
p[pestveion eatin |
a add positive charge to the nucleus add an electron to the atom
b add positive charge to the nucleus remove positive charge from the nucleus
cc remove an electron from the atom add an electron to the atom
d remove an electron from the atom remove positive charge from the nucleus

35 a nucleus of element x is represented as cs x.
which is an isotope of element x?
26 54 56 54
a 5x b 36x c 34x d 33%

36 which statement about the random decay of the nuclei in a sample of uranium-238 is correct?
a_ the probabilities of an alpha-particle, a beta-particle or a gamma ray being emitted from a
nucleus in the sample are equal.
b_ the probability of a nucleus in the sample decaying decreases as time passes.
c_ the probability of a nucleus decaying in any ten minute interval is the same for all the nuclei
in the sample.
d_ the probability of a nucleus in the sample decaying increases as time passes.

37 the count rate due to a sample of a radioactive isotope is measured for 80 minutes.
/minutes counts/second
0 480
20 380
40 300
60 240
80 190
what is the half-life of the isotope?
a 20 minutes b 40 minutes c_ 60 minutes d 80 minutes

38 which planet in our solar system is nearest to the sun and what is the nature of the planet?
p| penet [rate |
a mercury rocky
b mercury gaseous
cc venus rocky
d venus gaseous

39 the sun consists mostly of two elements.
what are these two elements?
a helium and nitrogen
b_ hydrogen and helium
c_ hydrogen and oxygen
doxygen and nitrogen

40 which statement about the milky way is correct?

a ltis agalaxy.

b_ itis a group of galaxies.

c_itis a group of stars outside our own galaxy.

d_itis a group of stars which are part of our galaxy.
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