physics

1. the diagram shows a pendulum that oscillates between p and q.
_ — support
f i string
p q

pendulum bob
which method is used to find the average period of oscillation for the pendulum?
a measure the time it takes to swing from p to q.
b- measure the time it takes to swing from p to q to p 10 times and divide that time by 10.
c measure the time it takes to swing from p to q to p 10 times and multiply that time by 10.
d_ measure the time it takes to swing from q to p.

2 acar moves through a measured distance s in a known time t.
what is the correct equation used to calculate the average speed v of the car?
a ye b v=sxt c vel d v=sxt?
s

3. onmars, the acceleration of free fall is 3.7 m/s’.
what is the weight of a 2.0kg mass on mars?
a 0.54n b 1.9n c 7.4n d 20n

4 a rocket is travelling vertically upwards. three vertical forces act on it.
the thrust acts upwards and is equal to 100 000n.
the weight acts downwards and is equal to 80000n.
what is the air resistance force acting on the rocket when it is travelling upwards at a constant
speed?
a 20000n downwards
b  20000n upwards
c 180000n downwards
d 180000n upwards

5 anirregular plane object is suspended freely from point o.
the object is displaced and then released. it swings a few times, and comes to rest as shown.
: 7 plane object
where is the centre of gravity of the object?
a horizontally to the left of o
b_ horizontally to the right of o
c vertically above o
d vertically below o

6 three situations are listed.
1 someone blowing air into a party balloon
2  acrane lifting a block of concrete
3 apile of books at rest on a shelf
in which situations is work being done?
a 1,2and3 b 1and2only c_  1only d 2and3 only

7 which row describes an advantage and a disadvantage of wind turbines?
| atvaiage | aoevaninge |
a no fuel needed harmful gases released
b variable supply fuel needed
c | no harmful gases released variable supply
d constant supply noisy

8 the diagram shows a rectangular metal block with dimensions 2.5cm x 3.0cm x 4.5cm. the
block is resting on the ground.
the block exerts a pressure of 0.23n/cm? on the ground.
spe not to
scale
3.0cm
y / af 2.5cm
i i
“45cm
what is the weight of the metal block?
a 0.020n b 1.7n c 2.6n d 3.1n

9 which row correctly describes the movement of particles in solids and liquids?
[seas ies
a no movement move around each other
b no movement vibration only
cc vibration only move around each other
d vibration only vibration only

10 what is the boiling temperature of water at standard atmospheric pressure?
a -173k b 100k c 273k d 373k

11. which row describes how the volume and mass of liquid mercury change as it is heated?
[see [ass
a decreases decreases
b decreases stays the same
cc increases increases
d increases stays the same

12 in which situation does the store of internal energy of the water increase?
a_ water at 0°c freezing to form ice
b_ water being heated from 25°c to 40°c
c steam condensing on a window
d_ water in a puddle on a breezy day

13 which statement describes what happens to particles during the evaporation of a liquid?
a particles become fixed in position.
b_ particles escape from the surface.
c_ particles move much closer together.
d_ particles start to move around at random.

14 which of the following is not an example of convection?
a aspoon handle becoming hot when it is placed in a hot drink
ba thermal up-draught in the atmosphere that glider pilots use
c_ flames and smoke rising from a fire
d_ warming up water in a kettle on a gas ring

15 a hollow aluminium cube is filled with very hot water.
side x of the cube is opposite side y of the cube. one of these two sides is black and one is
white.
a student holds the back of one hand 5cm from side x, and then immediately holds the back of
the other hand 5cm from side y.
aluminium cube
side x side y
} 5cm 5cm i
very hot water

the hand held near side y feels warmer than the hand held near side x.
which row identifies the black side and correctly compares the rate of emission of thermal
radiation from each side?
[tte on

a x greater for x

b x the same for x and y

cc ¥ greater for y

d y¥ the same for x and y

16 the diagram shows a ray of light travelling from air into a glass block and changing direction so
that it is closer to the normal.
air i_—normal
pa —
what is the name of this process and why does it happen?
process why it happens
a diffraction speed of the light decreases
b diffraction speed of the light increases
cc refraction speed of the light increases
d refraction speed of the light decreases

17. which row gives an example of a longitudinal wave and describes the direction of the vibrations?
ae, [eee
a light wave at right angles to the direction of propagation
b light wave parallel to the direction of propagation
cc sound wave at right angles to the direction of propagation
d sound wave parallel to the direction of propagation

18 which statement about total internal reflection is correct?

a total internal reflection occurs when light is incident on a glass to air boundary at an angle of
incidence greater than the critical angle.

b_ total internal reflection occurs when light is incident on a glass to air boundary at an angle of
incidence less than the critical angle.

c_ total internal reflection occurs when light is incident on an air to glass boundary at an angle
of incidence greater than the critical angle.

d total internal reflection occurs when light is incident on an air to glass boundary at an angle
of incidence less than the critical angle.

19 a ray of green light passes through a glass prism, as shown.
f—~ green light
which colours of light refract as shown in the table?
refracts more refracts less
than green than green
a red blue
b red yellow
cc violet blue
d violet yellow

20 which electromagnetic waves are used for sterilising medical equipment?
a gamma rays
b_ microwaves
c_ radio waves
d visible light

21 which process causes a sound wave to produce an echo?
a diffraction
b_ dispersion
c_ reflection
d refraction

22 a student stands 75m from a wall and makes a short, loud sound by tapping two pieces of wood
together.
what is the approximate time between making the sound and the student hearing the echo
produced?
a 0.2s b 05s c 2s d 5s

23 which statement is always true?
a amagnetic material attracts a non-magnetic material.
b  amagnetic material repels another magnetic material.
c amagnetic material attracts another magnetic material if one of them is magnetised.
d a non-magnetic material repels another non-magnetic material.

24 a polythene rod is charged by friction. the polythene rod becomes negatively charged.
which statement is correct?
a_ the rod gains electrons.
b_ the rod loses electrons.
c_ the rod gains protons.
d_ the rod loses protons.

25 what is the unit of electromotive force (e.m.f.)?
a ampere
b newton
c ohm
d_ volt

26 the diagram shows a circuit containing two identical lamps and three ammeters.
t ~ |
ammeter 1 (a) (a) ammeter 3
)—)
6)
the current in ammeter 1 is 0.30a.
which row gives possible values for the currents in ammeters 2 and 3?
current in current in
ammeter 2/a | ammeter 3/a
a 0.15 0.00
b 0.15 0.30
cc 0.30 0.00
d 0.30 0.30

27 into which wire is a switch connected in order to switch a mains appliance on and off safely?
alive
b_ negative
c_oneutral
d positive

28 which device uses the magnetic effect of an electric current?
a_ heater
b lamp
c relay
d_ thermistor

29 a transformer has 200 turns on its primary coil and is connected to a 240 v a.c. supply.
the output voltage of the transformer is 60 v a.c.
how many turns are on the secondary coil of the transformer?
a 20 b 50 cc 72 d 800

30 which statement about an atom is correct?
a_ anatom has positive charge because there are only positive charges in the nucleus.
b- anatom has negative charge because there are only negative charges in the nucleus.
c_ an atom has neutral charge because the positive charge in the nucleus equals the total
negative charge of the electrons.
d_ an atom has neutral charge because the negative charge in the nucleus equals the total
positive charge of the electrons.

31 the table gives information about four nuclei.
number number
1 26 59
2 27 59
cs) 27 60
4 28 60
which nuclei are isotopes of the same element?
a iand2 b 1and4 c 2and3 d 3and4

32 which apparatus is used to measure background radiation?
a acounter, a detector and a source
b  acounter and a detector only
c  acounter and a source only
d  adetector and a source only

33 which row correctly identifies the nature of each radioactive emission?
[eee ecard
a helium nucleus electromagnetic wave electron
b electron helium nucleus electromagnetic wave
cc helium nucleus electron electromagnetic wave
d | electromagnetic wave electron helium nucleus

34 a nucleus spontaneously emits radiation and becomes a nucleus of a different element.
what could the emitted radiation be?
a alpha or beta
b- alpha or gamma
c beta or neutron
d gamma or neutron

35 the diagram shows a lead-lined box used for storing a radioactive source.
sp)
why is the inside of the box lined with lead?
a_ it helps the source to stay radioactive for longer.
b_ it makes the box heavier.
c_ it makes the radioactive source more stable.
d_ it reduces the amount of radiation that can escape from the box.

36 a student draws a simplified diagram showing the sun and the different movements of the moon
and the earth.
which arrow represents a motion taking 365 days to complete?
a
not to
scale
moon
becp>
ge )»

37 the table gives information about four of the planets in our solar system.
two of these planets are gaseous and two are rocky.
average distance
1 1.4 x 10°
2 2.3 x 10°
3 5.8 x 10’
4 7.8 x 10°
which two planets are rocky?
a iand2 b 1and4 c 2and3 d 3and4

38 which row shows the most common elements in the sun and the regions of the electromagnetic
spectrum in which most of the sun’s energy is radiated?
[semesters

a carbon and oxygen gamma and radio waves
b carbon and oxygen infrared and visible
cc hydrogen and helium gamma and radio waves
d hydrogen and helium infrared and visible

39 what is the meaning of a light-year?
a the distance light travels in space in one year
b_ the number of years it takes light to travel from the sun to the earth
c_ the speed that light travels in space
d the time it takes light to travel from the sun to the nearest 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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