physics

5 a particle accelerates from rest.
the graph shows the variation of the velocity v of the particle with time t.
v
0
0 t
which graph shows the variation of the velocity v with the acceleration a of the particle?
a b cc d
vv v vv vv
0 0 0 0
0 a 0 a 0 a 0 a

6 the graph shows the vertical velocity of a parachutist during the first 20s of her jump.

ot
velocity |) |i tt} i v7 ut tt) att yy
ims" li pi tt tt yy te yy tt tt
lit it at
gtttli ta tite et ty tt tt
lt tt yt ttt te ey pt tt
lt pia tt te te tt tt
ltt yt t tp ye a tt
lt iat tt et tt ttt
ee 2
lia tt tt te tt in tt
darren
iat ttt ttt ty tt eee ee nm
ep pp tt et et
2 ae eee

0 5 10 16 20
time/s

approximately how far does she fall before opening the parachute?
a 390m b 570m cc 710m d 770m

7 whatis the definition of linear momentum?
a force per unit time
b product of force and time
c product of velocity and mass
d velocity per unit mass

8 amass of 0.20kg is suspended from the lower end of a light spring. a second mass of 0.10 kg is
suspended from the first mass by a thread. the arrangement is allowed to come into static
equilibrium and then the thread is cut.

spring
0.20kg
thread
0.10kg
immediately after the thread is cut, what is the upward acceleration of the 0.20kg mass?
a 49ms? b 6.5ms* cc 9.8ms* d 15ms?

9 a snowflake and a raindrop are in still air. they both fall from rest at the same time and from the
same height, far above the ground.
the snowflake and raindrop contain the same mass of water. assume that there is no
evaporation or melting. also assume that, for a given speed, the drag force acting on the
snowflake is greater than the drag force acting on the raindrop.
which statement about the snowflake and raindrop is correct?
a_ the raindrop takes more time than the snowflake to reach terminal velocity.
b_ the raindrop takes more time than the snowflake to reach the ground.
c_ they reach the same terminal velocity.
d_ they take the same amount of time to reach the ground.

10 two trolleys are held together on a horizontal surface with a compressed spring between them.
2kg
1ikg
©-©!©-o©
when they are released, the trolleys lose contact with the spring. the trolley of mass 2kg moves
to the left at a final speed of 2ms™.
how much elastic potential energy was stored in the spring?
a 4j b 6j cc 8j d 12j

11 a square board, of side length x, hangs freely from a nail p, as shown.
the board has uniform thickness and is made from material of uniform density.
pix qk
x
ie 2x
ja |
vi
a second square board, of side length 2x, is made of the same material and has the same
thickness as the original board. this second board is then hung from a nail q. nails p and q are
at the same height.
what is the vertical distance between the positions of the centres of gravity of the two boards?
ao b ~ c x d x2
v2

12 forces are applied to a rigid object. the forces all act in the same plane.
in which diagram is the object in equilibrium?
a b cc d
f fe f fp
3f 3f l "
3f gf
f f f f

13 a rigid rod xy has negligible mass and length 75cm. the rod is suspended from a fixed point p
by a string attached to end x. an object of mass 11 kg is suspended by a string that is attached to
the rod at a distance of 25cm from end x, as shown.

p
75cm 1
x ho _rs ¥
i 25cm
11kg
which vertically upward force acting on end y of the rod would hold the rod horizontally in
equilibrium?
a 3.7n b 33n c 36n d 320n
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14 the density of water is 1.0gcm™ and the density of glycerine is 1.3gcm™~.
water is added to a measuring cylinder containing 40 cm? of glycerine so that the density of the
mixture is 1.1gcm™. assume that the mixing process does not change the total volume of the
liquid.
what is the volume of water added?
a 40cm? b 44cm® c 52cm* d 80cm*

15 a box, in the shape of a cube, falls from a ship into the sea. the box lands with its lower face

level with the surface of the sea.

box on the

surface of the sea zf foe of sea ee of sea

box sinking ny
the box begins to sink, becomes totally submerged and then sinks deeper into the sea.
as the box sinks, its lower face is always parallel to the surface of the sea.
which graph best represents the variation of the upthrust acting on the box with the depth of its
lower face below the surface of the sea?
a b cc d

16 aspring is compressed by a mass, as shown.
spring =

before after
which statement describes the changes to the energy of the spring when it is compressed by the
mass?
a the spring gains both gravitational potential energy and elastic potential energy.
b_ the spring gains gravitational potential energy and loses elastic potential energy.
c_ the spring loses both gravitational potential energy and elastic potential energy.
d_ the spring loses gravitational potential energy and gains elastic potential energy.

17 aman of mass 75kg runs up a staircase consisting of 30 steps. each step is 20 cm high.
the man takes a time of 7.0s to run from the bottom of the staircase to the top.
what is the average rate of increase of gravitational potential energy of the man?
a 64w b 450w cc 630w d 4400w
ee | se

18 an alpha-particle has 2.2 x 10°’ j of kinetic energy.
what is the speed of the alpha-particle?
a 41x10°ms™
b 5.8x10°ms™
c 8.1x10°ms"
d 1.2x10’ms*

19 identical springs are joined in four arrangements.
which arrangement has the same spring constant as a single spring?
a b cc d

20 anunstretched spring has a length of 2.0cm.
the spring is then stretched within its limit of proportionality by a tensile force of 1.5n so that the
elastic potential energy stored in the spring is 0.045 j.
what is the stretched length of the spring?
a 3.0cm b 5.0cm c 6.0cm d 8.0cm

21 a signal generator, amplifier and loudspeaker are used to produce different sound waves in the
air of a room. the relationships between the properties of these waves are investigated.
which relationship is not correct?
a_ amplitude is proportional to wavelength.
b_ frequency is inversely proportional to wavelength.
c intensity is proportional to amplitude squared at a given frequency.
d_ period is equal to the reciprocal of frequency.

22 when a guitar string is plucked, it causes a longitudinal sound wave in the air, as shown.
. o .* ° ° i ° seated <* °
ses: : o< ; wa” aap a - eg | ‘
rt es ee eo? of te 2 fm la
cs ee oe . 7 care bo ee es
es sa ree: sen 73
arb ar? ‘fae : . z * & & tags, sialus *. . .
saw te me teese 7 a te %.
0.0 02 0.4 0.6 0.8
distance/m
the speed of sound in the air is 340ms™.
what is the approximate frequency of the sound wave shown?
a 430hz b 680hz c 1100hz d 1400hz

23 a transverse wave travels along a rope. the diagram shows the rope at time ft = 0.
the wave is travelling from left to right. the period of the wave is t.
direction of
wave travel
gow lwoesee eeeeceheereceeyiees «6 coo efe.
xx
one particle of the rope is labelled x.
which graph shows the variation with time of the displacement of particle x between t= 0 and
t=2t?
a b
a |

24 a jet aircraft travels at a speed of 0.80v, where v is the speed of sound. the aircraft directly
approaches a stationary observer. the frequency of sound emitted by the aircraft is 100 hz.
which frequency does the observer hear?

a 56hz b 180hz c 400hz d 500hz

25 a telescope detects and analyses some electromagnetic radiation of wavelength 2cm.
which type of telescope is it?
a microwave telescope
b_ optical telescope
c_ radio telescope
d x-ray telescope

26 two waves of the same type overlap.
when does the principle of superposition apply?
a always
b_ only when the waves have the same amplitude
c_ only when the waves have the same frequency
d_ only when the waves travel in opposite directions

27 a stationary sound wave is formed in a tube of length l that is closed at one end.
the diagram shows the positions of the nodes and antinodes of the stationary wave.
node node
antinode antinode
which graph shows the variation of the amplitude a of the wave with distance x measured from
the closed end of the tube?
a b
a a
0 x 0 x
l lb
cc d
a a
0 x 0 x
l l

28 a wave on the surface of water passes through a gap between two barriers and is diffracted, as
shown.
lr
|
what happens when the frequency of the wave is halved?
a less diffraction is observed.
b_ more diffraction is observed.
c_ there is no diffraction.
d the same amount of diffraction is observed.

29 observable interference fringes are produced using light from a double slit. the intensity of the
light emerging from each slit is initially the same.
the intensity of the light emerging from one of the slits is now reduced.
how does this affect the interference pattern?
a the bright fringes and the dark fringes all become brighter.
b_ the bright fringes and the dark fringes all become darker.
c_ the bright fringes become brighter and the dark fringes become darker.
d_ the bright fringes become darker and the dark fringes become brighter.
eels"

30 a diffraction grating has 4.00 x 10° lines per metre. a beam of light of wavelength 589 x 10° m is
incident normally on the diffraction grating.
what is the angle between the second-order maximum and the direction of the incident beam of
light?
a 13.6° b 27.3° c 28.1° d 56.2°

31 a length of wire rs has a circular cross-section.
2
r ss

at end r of the wire, the cross-sectional area is a.

at end s of the wire, the cross-sectional area is e:

charge q takes time ft to pass through end r of the wire. there is a constant electric current in

the wire.

how much charge will pass through end s in a time interval of a

a @ b @ é 2 dq

8 4 2

32 a power supply is connected to a component by connecting wires of total resistance 4.9q.
the power supply has an output power of 3.6 w and a terminal potential difference of 12v.
how much thermal energy is dissipated in the connecting wires in a time of 1.0 hour?

a 0.44j b 29j c 1.6kj d 11kj

33 a copper wire is to be replaced by an aluminium alloy wire of the same length and resistance.
copper has half the resistivity of the alloy.
what isthe ratio diameter of alloy wits 2
diameter of copper wire
a 2 b 2 c 22 d 4

34 three identical filament lamps, p, q and r, are connected to a battery of negligible internal
resistance, as shown.
; ~ |
q
sz
bs) r
)
6)
the filament wire in lamp q breaks so that it no longer conducts.
what are the changes in the brightness of lamps p and r?
tame e [tame
a brighter brighter
b brighter dimmer
[e dimmer brighter
d dimmer dimmer

35 which ratio has the same units as electromotive force (e.m.f.)?
a charge per unit energy transferred
b_ charge per unit time
c_ energy transferred per unit charge
d_ energy transferred per unit time

36 acircuit consists of a battery, a voltmeter and five fixed resistors, as shown.
t ~
“an
an li ro
the voltmeter reading is zero.
what is the resistance of resistor r?
a 110 b 2.10 c 400 d 8.00

37 a battery of electromotive force (e.m.f.) 6.0 v and negligible internal resistance is connected to a
voltmeter and four other components, as shown.
the voltmeter is connected between points x and y. the positive terminal of the voltmeter is
connected to x and the negative terminal of the voltmeter is connected to y.
-_ i —
6.0v | xx (v) ¥
|
initially, the resistance of each of the four components is 1.0 kq.
which change, on its own, will cause the voltmeter to show a positive reading?
a_ decrease the temperature of the thermistor.
b increase the resistance of the variable resistor.
c_ reduce the intensity of light incident on the light-dependent resistor (ldr).
d_ replace the fixed resistor with a 500 resistor.

38 an a-particle passes close to a gold nucleus and is deflected through an angle greater than 90°.
which property of the a-particle changes as a result of the deflection?
a charge
b momentum
c_ nucleon number
d proton number
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39 a nucleus of “4,u decays in stages by emitting a-particles and 8 particles, eventually forming a
nucleus of 78pb.
how many a-particles and how many f particles are emitted during the decay chain?
[| pares | pris
a 8 6
b 8 10
cc 16 6
d 16 22

40 which list of particles contains only fundamental particles?
a antineutrino, beta, meson
b _ baryon, neutrino, positron
c electron, neutrino, alpha
d lepton, quark, positron

Solve 9702_w22_qp_11