physics

1 the diagram shows a rectangular metal sheet close to two rulers.
30
metal sheet
20
10
cm
0
ocm 10 20 30 40 50
what is the area of the metal sheet?
a 700cm* b  875cm? c 900cm? d 1125cm?*

2 the diagram shows the speed-time graph of an object.
in which section does the object have the largest acceleration?
speed d
cc
b
a
0
0 time

3 an object begins to fall close to the earth’s surface. air resistance can be ignored.
which statement about the object’s acceleration is correct?
a_ the acceleration is constant.
b_ the acceleration decreases as the body falls.
c_ the acceleration increases as the body falls.
d_ the acceleration is zero.

4 which quantity is equal to gravitational force?
a gravitational field strength x mass
b gravitational field strength x weight
c_ mass per unit weight
d_ weight per unit mass

5  aconcrete building block has the dimensions shown.
\ 29cm :
a! .
ca (26m
the mass of the block is 15 000g.
what is the density of the block?
a 43g/cm* b  2.4g/cm® c 0.42g/cm? d 0.023g/cm?

6 what is measured by the moment of a force?
a the acceleration produced by the force
b _ the turning effect of the force
c the time for which the force acts
d_ the increase in energy caused by the force

7 two identical containers, p and q, are partly filled with different quantities of sand.
the position of the centre of gravity for each container is labelled x.
p q
which container is more stable and what is the reason why it is more stable?
a_ pis more stable because it has a lower centre of gravity.
b_ pis more stable because it has a smaller mass.
c qis more stable because it has a greater depth of sand.
d qis more stable because it has a higher centre of gravity.

8 the diagram shows a steel sphere falling through a cylinder of oil.
steel sphere
oil
which row indicates what happens to the steel sphere and what happens to the oil as the steel
sphere falls?
the steel sphere the oil
becomes becomes
warmer warmer
a yes yes
b yes no
cc no yes
d no no

9 amoving object is brought to rest by a frictional force of 30 n over a distance of 5.0m.
the diagram shows the energy transferred between stores.
store of store of
kinetic energy internal energy
how much energy is transferred by this force and how is the energy transferred?
how the energy

| onery mansferreds

a 6.0 by electrical working

b 6.0 by mechanical working

cc 150 by electrical working

d 150 by mechanical working

10 a motor transfers 24 j of energy in 60 seconds.
what is the power output of the motor?
a 0.40w b 2.5w c 24w d 1400w

11 an artist makes four sculptures with circular bases and places them on sand. all the sculptures
are of equal weight and volume.
which sculpture is least likely to sink into the sand?
a b cc d
aquw.

12 a quantity of water is boiled to form the same mass of steam.
which row shows how the volume and density of the water change?
| veume [sensi

a decreases decreases
b decreases increases
cc increases decreases
d increases increases

13 the diagram represents gas particles moving around in a sealed container.
the gas particles collide with the walls of the container.
\ a? x
the temperature of the gas is increased.
what happens to the average speed of the gas particles and what happens to the number of
collisions by the gas particles with the walls of the container?
average speed the number of collisions with
of gas particles the walls of the container
a increases less frequent collisions
b increases more frequent collisions
cc stays the same less frequent collisions
d stays the same more frequent collisions

14 a metal object is heated strongly in an oven.
what happens to the volume of the object and the internal energy stored in the object?
a decreases decreases
b decreases increases
cc increases decreases
d increases increases

15 which row describes the process of melting?
initial state final state change in
temperature
a liquid gas yes
b liquid solid fo
c solid gas ys
d solid liquid no

16 a beaker of water is heated and thermal energy travels through the water by convection.
what happens to the density of the water when it is heated and how does the water move?
a_ the density decreases and the heated water moves downwards.
b_ the density decreases and the heated water moves upwards.
c_ the density increases and the heated water moves downwards.
d_ the density increases and the heated water moves upwards.

17 waves travel across the surface of water.
what is meant by the amplitude of the wave?
a the maximum distance of a water particle from its mean position
b_ how far the wave travels every second
c_ the number of waves passing a point every second
d_ the distance between the top of consecutive waves

18 water waves change direction when they move from shallow water to deep water.
r new wave
a direction
original ye
wave a
direction x
xx deep
pa water
shallow £
water
what is the name of this effect?
a diffraction
b_ dispersion
c reflection
d refraction

19 the ray diagram shows the formation of an image when light is reflected by a plane mirror.
image
xx
mirror zz
y
object rn
eye
which lines represent light rays?
a x,yandz b xandyonly c xandzonly d_ yandzonly

20 which diagram shows how an image of an object is formed on a screen by a converging lens?
a b
2 x focal length 2 x focal length
\
screen screen
cc d
ie vie 7
y
screen screen

21 which diagram shows the dispersion of white light by a glass prism?
a b
red
violet
va i.
white violet white
light light
cc d
red
va “ lx
white violet white violet
light light

22 which regions of the electromagnetic spectrum are used for satellite television and for security
marking?
[ [sate een [secur manna |
a microwaves infrared
b microwaves ultraviolet
cc x-rays infrared
d x-rays ultraviolet

23 the horn on a ship makes a sound. the captain on the ship hears an echo from a cliff 4.0 later.
the speed of sound is 340 m/s.
how far away is the cliff from the ship?
a 170m b 340m c 680m d 1400m

24 a bar magnet is next to a steel bar. some of the magnetic field lines due to the magnet are

shown.
what are the correct poles of the magnet and would the steel bar attract or repel the bar magnet?
[xy ee]

a n pole s pole attraction

b n pole s pole repulsion

cc s pole n pole attraction

d s pole n pole repulsion

25 which row about electrical conduction in metals is correct?
p| statement [statement 2
a it is the movement of free electrons. electric charge is a flow of current.
b it is the movement of positive ions. electric charge is a flow of current.
cc it is the movement of free electrons. electric current is a flow of charge.
d it is the movement of positive ions. electric current is a flow of charge.

26 the diagram shows three wires, p, q and r. they are all made from the same metal.
p q r
_ 2cm ,
2cm 4cm <>
sem) sem emt
which list gives the wires in order of resistance, from lowest to highest?
a p>q>r
b q>r>p
cc r>p>~q
d r>q->p

27 a60w lamp operates at normal brightness for 2.0 minutes.
how much energy is transferred by the lamp?
a 0.50j b 30j c 120j d 7200j

28 what is a thermistor?
a acontainer to keep a hot liquid warm
b= acircuit to control room temperature
c a temperature-dependent resistor
d_ aheater for a room

29 the diagram shows a circuit containing two identical resistors connected to a battery.
the current is measured at x and at y.
a
¥
which row is correct?
aranaeneat current at y
9 compared with
of resistors
current at x
a parallel less than x
b parallel equal to x
cc series less than x
d series equal to x

30 the mains voltage is 120v.
which fuse should be fitted to an electric kettle with a power of 1.5kw?
a 3a b 5a c 10a d 13a

31 the diagrams show a strong magnet and a weak magnet moving into the same coil of wire at
different speeds.
arrangement x arrangement y
5] strong magnet weak magnet
a oc
ss a ad
moving moving
slowly slowly
arrangement z
strong magnet
a
—_—_————
moving
quickly
which arrangement induces the largest electromotive force (e.m.f.) and which arrangement
induces the smallest e.m.f.?
largest smallest
e.m.f. e.m.f.
a x bl
b ¥ z
cc z x
d z ¥

32 the diagrams show a current-carrying wire with an arrow in the direction of the current.
which diagram shows the magnetic field produced by the current?
a b
|_-— magnetic “aie
a a a ‘a field lines ey m* ry ra 4 field lines
a a a
i \ np ae ee
| wire wire
cc d
oe eee ee magnetic ss _-— magnetic
ses _---"” |. field lines
amenipacmle fale lines in ana
ek see
\ geese, soe
(area ore asist ane eee eee, wire
es ge 7

33 what are the best materials to use for the construction of a transformer?
a_ copper for the core and steel for the coils wound around it
b_ copper for the core and copper for the coils wound around it
c soft iron for the core and copper for the coils wound around it
d _ steel for the core and copper for the coils wound around it

34 which diagram represents the structure of a neutral atom?
a b c d
key
© © © © © neutron
@ proton
% vei ei © electron
© © ©

35 the diagram shows five atoms in a radioactive substance. the atoms each give out an a-particle.
> at first particle
o-= second particle
atom 1 is the first to give out a particle. atom 3 is the second to give out a particle.
which atom will give out the next particle?
a atom 2
b atom4
c atom5
d_ impossible to tell

36 the diagram shows a radioactive source, a thick aluminium sheet and a radiation detector.
radioactive thick aluminium radiation detector
source sheet
the radiation detector shows a reading greater than the background reading.
which type of radiation is being emitted by the source and detected by the detector?
a a-radiation
b_ b-radiation
c_y-radiation
d infrared radiation

37 the half-life of the radioactive isotope caesium '2/cs is 30 years.
starting with 30 g of the isotope, which mass of the isotope remains after 90 years?
a 10.0g b_ 7.50g c 3.75g d 1.25g

38 which list gives the names of the planets in the correct order?
a mercury, mars, earth, venus, jupiter, saturn, uranus, neptune
b- mercury, venus, earth, mars, saturn, uranus, jupiter, neptune
c mercury, venus, earth, mars, jupiter, saturn, uranus, neptune
d_ venus, mars, earth, mercury, jupiter, saturn, uranus, neptune

39 which row describes the sun and the milky way?
[| the sin | the iy way |
a a galaxy a galaxy
b a galaxy a star
cc a star a galaxy
d a star a star

40 what is the approximate diameter of the milky way?

a 100 light-years

b 1000 light-years

c 10000 light-years

d 100000 light-years
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