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Y13 Mock Revision

Total questions: 62

Worksheet time: 1hrs 27mins

Name
Class
Date
1.
A cyclist is travelling due south with velocity u. The wind is blowing from the north-east with velocity w. cyclist u wind The wind has a velocity v relative to the cyclist, where v = w – u.
Which vector diagram shows the magnitude and direction of velocity v? 
a)
A
b)
B
c)
C
d)
D
2.
A double-ended launching device fires two identical steel balls X and Y at exactly the same time. The diagram shows the initial velocities of the balls. They are both launched horizontally, but Y has greater speed.
Which statement explains what an observer would see? 
a)
Both X and Y reach the ground simultaneously, because air resistance will cause both to have the same final speed. 
b)
Both X and Y reach the ground simultaneously, because gravitational acceleration is the same for both. 
c)
X reaches the ground before Y, because X lands nearer to the launcher. 
d)
Y reaches the ground before X, because Y has greater initial speed. 
3.
A lift (elevator) consists of a passenger car supported by a cable which runs over a light, frictionless pulley to a balancing weight. The balancing weight falls as the passenger car rises. 
What is the magnitude of the acceleration of the car when carrying just one passenger and when the pulley is free to rotate? 
a)
0.032 ms–2 
b)
0.32 ms–2 
c)
0.6 ms–2 
d)
0.65 ms–2 
4.
Two spheres travel along the same line with velocities u1 and u2. They collide and after collision their velocities are v1 and v2.  
Which collision is not elastic? 
a)
A
b)
B
c)
C
d)
D
5.
A ball of mass m is thrown up to height h in air with an initial velocity v, as shown.
Air resistance is considered negligible. The acceleration of free fall is g. What is the total work done by the gravitational force on the ball during its flight from P to Q? 
a)
zero
b)
½mv2
c)
mgh
d)
2 mgh 
6.
Which one of the following is a true statement concerning the vertical component of the velocity and the acceleration of a projectile when it is at its maximum height? 
a)
A
b)
B
c)
C
d)
D
7.
The acceleration of free fall of a small sphere of mass 5.0 10−3 kg when close to the surface of Jupiter is 25 ms−2 . The gravitational field strength at the surface of Jupiter is 
a)
2.0 × 10−4 Nkg−1
b)
1.3 × 10−1 N kg−1 
c)
25 N kg−1 
d)
5.0 × 103 Nkg−1
8.
A constant force is applied to a ball of mass m. The velocity of the ball changes from v1 to v2 . The impulse received by the ball is 
a)
m(v2 +v1) 
b)
m(v2 −v1) 
c)
m(v22 + v12 ) 
d)
m(v22 − v12 ) 
9.
What is the vertical acceleration of a projectile?
a)
0 m/s2
b)
9.8 m/s2
10.

A horizontally-launched projectile arcs out and hits the ground below. The vertical displacement and the horizontal displacement are measured. What is the best equation to use to find the time the projectile was in the air?

a)

d→x=v→x⋅t\overrightarrow{d}_x=\overrightarrow{v}_x\cdot t

b)

d→y=+12⋅g⋅t2+v→yi⋅t\overrightarrow{d}_y=+\frac{1}{2}\cdot g\cdot t^2+\overrightarrow{v}_{yi}\cdot t

c)

v→yf=v→yi+g⋅t\overrightarrow{v}_{yf}=\overrightarrow{v}_{yi}+g\cdot t

d)

t=2⋅d→ygt=\sqrt{\frac{2\cdot\overrightarrow{d}_y}{g}}

11.

A ball rolls off a table top and strikes the floor as shown. Given the measurements made, the time the projectile spent in the air is ---.

a)

17 s

b)

0.34 s

c)

0.58 s

d)

0.49 s

12.

A skateboarder rolls off a bridge into the river as shown. If the skateboarder spent 0.79 s in the air, how far above the river is the edge of the bridge?

a)

5.5 m

b)

0.70 m

c)

1.3 m

d)

3.1 m

e)

Not enough information given.

13.

A projectile is launched with a horizontal velocity of 20 m/s and an initial vertical velocity of 20 m/s. Which graph correctly shows the horizontal velocity of the projectile over time?

a)
b)
c)
d)
14.

The graph shows how the temperature of a liquid varies with time when energy is supplied to the liquid at a constant rate P. The gradient of the graph is K and the liquid has a specific heat capacity c.

What is the mass of the liquid?

a)

PcK\frac{P}{cK}

b)

PKc\frac{PK}{c}

c)

PcK\frac{Pc}{K}

d)

cKP\frac{cK}{P}

15.

A mass m of ice at a temperature of –5 °C is changed into water at a temperature of 50 °C.


Specific heat capacity of ice = ci

Specific heat capacity of water = cw

Specific latent heat of fusion of ice = L


Which expression gives the energy needed for this change to occur?

a)

55 m cw + m L

b)

55 m ci + 5 m L

c)

5 m ci + 50 m cw + m L

d)

5 m ci + 50 m cw + 5 m L

16.

Which of the following is equivalent to a temperature of –100°C?

a)

–373 K

b)

–173 K

c)

173 K

d)

373 K

17.

A pure solid is heated at its melting point. While it is melting the

a)

mean kinetic energy of the molecules of the solid increases.

b)

mean potential energy of the molecules of the solid increases.

c)

temperature of the solid increases.

d)

temperature of the solid decreases.

18.

A fixed mass of an ideal gas is trapped in a cylinder of constant volume and its temperature is varied. Which graph shows the variation of the pressure of the gas with temperature in degrees Celsius?

a)
b)
c)
d)
19.
A surveyor’s device emits a laser pulse.
What is the time taken for the pulse to travel from the device to a wall 150 m away, where it is reflected, and then return to the device?
a)
0.05ns 
b)
0.10ns 
c)
0.50μs 
d)
1.0μs 
20.
A monochromatic plane wave of speed c and wavelength λ is diffracted at a small aperture. The diagram illustrates successive wavefronts. 
 After what time will some portion of the wavefront XY reach point P? 
a)
3λ/2c
b)
2λ/c
c)
3λ/c
d)
4λ/c
21.
Which statement about sound waves in air at constant temperature is correct? 
a)
Amplitude is inversely proportional to velocity.
b)
Frequency is inversely proportional to wavelength.
c)
Velocity is proportional to wavelength.
d)
Wavelength is proportional to amplitude. 
22.
The basic principle of note production in a horn is to set up a stationary wave in an air column. For the lowest note produced by a horn, a node is formed at the mouthpiece and the antinode is formed at the bell. The frequency of this note is 75 Hz. What are the frequencies of the next two higher notes for this air column? 
a)
A
b)
B
c)
C
d)
D
23.
Electromagnetic waves of wavelength λ and frequency f travel at speed c in a vacuum. What describes the wavelength and speed of electromagnetic waves of frequency f / 2? 
a)
A
b)
B
c)
C
d)
D
24.
An object is attached to a vertical spring and bobs up and down between points A and B.  Where is the object located when its kinetic energy is a minimum?
a)
at either A or B
b)
midway between A and B
c)
one-third of the way between A and B
d)
one-fourth of the way between A and B
25.
In simple harmonic motion, the displacement is maximum when the: 
a)
acceleration is zero 
b)
velocity is maximum 
c)
velocity is zero 
d)
kinetic energy is maximum 
26.
Polarizing lenses prove that light
a)
Is a longitudinal wave that vibrates constantly.
b)
Is a transverse wave that can only vibrate in a single plane.
c)
Is a longitudinal wave that travels at a speed 3⋅10⁸ m/s
d)
Is a transverse wave that has multiple planes of vibration.
27.
The diagram shows a charged particle as it approaches a pair of charged parallel plates in a vacuum.
Which row describes the horizontal and vertical components of its motion as it travels between the plates? 
a)
A
b)
B
c)
C
d)
D
28.
A battery is marked 9.0 V.
 What does this mean? 
a)
Each coulomb of charge from the battery supplies 9.0J of electrical energy to the whole circuit. 
b)
The battery supplies 9.0 J to an external circuit for each coulomb of charge. 
c)
The potential difference across any component connected to the battery will be 9.0 V. 
d)
There will always be 9.0 V across the battery terminals. 
29.
 The diagram shows part of a current-carrying circuit. The ammeter has negligible internal resistance.
What is the reading on the ammeter? 
a)
0.7 A
b)
1.3 A
c)
1.5 A
d)
1.7 A
30.
In the circuit shown, XY is a length L of uniform resistance wire. R1 and R2 are unknown resistors. J is a sliding contact that joins the junction of R1 and R2 to points on XY through a small signal lamp S. 
 To determine the ratio V1/V2 of the potential differences across R1 and R2, a point is found on XY at which the lamp is off. This point is at a distance x from X. What is the value of the ratio V1/V2 ? 
a)
A
b)
B
c)
C
d)
D
31.
The ampere is defined in terms of 
a)
the force between a magnet and a coil carrying a current. 
b)
the force between two long current carrying wires. 
c)
the amount of charge that passes any cross-sectional area of a wire in unit time. 
d)
the number of electrons that pass any cross-sectional area of a wire in unit time. 
32.
Two 6Ω resistors are connected in series with a 6V cell. A student incorrectly connects an ammeter and a voltmeter as shown. 
 The readings on the ammeter and on the voltmeter are 
a)
A
b)
B
c)
C
d)
D
33.
In the circuit shown, the battery and ammeter each have negligible resistance. The following combinations of resistors are placed in turn between the terminals X and Y of the circuit. Which combination would give an ammeter reading of 8 A? 
a)
A
b)
B
c)
C
d)
D
34.

The energy levels for an atom are shown to scale. A photon of wavelength λ is emitted because of a transition from E3 to E2. Which transition leads to the emission of a photon of longer wavelength?

a)

A. E4 to E1

b)

B. E4 to E3

c)

C. E3 to E1

d)

D. E2 to E1

35.

A proton, an electron and an alpha particle are at rest. Which particle has the smallest magnitude of ratio of charge to mass and which particle has the largest magnitude of ratio of charge to mass?

a)

A

b)

B

c)

C

d)

D

36.

What is correct about the nature and range of the strong interaction between nuclear particles?

a)

A. It is attractive at all particle separations.

b)

B. It is attractive for particle separations between 0.7 fm and 3 fm.

c)

C. It is repulsive for particle separations greater than 3 fm.

d)

D. It is repulsive at all particle separations.

37.

Which property of a nuclide does not change as a result of beta decay?

a)

A. Nucleon number

b)

B. Neutron number

c)

C. Proton number

d)

D. Charge

38.

Which of the following atomic energy level transitions corresponds to photons of the shortest wavelength?

a)

A

b)

B

c)

C

d)

D

39.

The positions of stable nuclei are plotted by neutron number n and proton number p. The graph indicates a dotted line for which n = p. Which graph shows the line of stable nuclides and the shaded region where unstable nuclei emit beta minus (β-) particles?

a)
b)
c)
d)
40.

Three conservation laws in nuclear reactions are

I. conservation of charge

II. conservation of baryon number

III. conservation of lepton number.

The reaction (in the attached image) is proposed.Which conservation laws are violated in the proposed reaction?

a)

A. I and II only

b)

B. I and III only

c)

C. II and III only

d)

D. I, II and III

41.

Which Feynman diagram shows the emission of a photon by a charged antiparticle?

a)
b)
c)
d)
42.
The unit of energy density of a fuel is 
a)
J m–2. 
b)
J m–3. 
c)
J kg–1. 
d)
kg J–1. 
43.
Which of the following is the best estimate for the overall efficiency of a typical coal power station? 
a)
5%
b)
30%
c)
60%
d)
90%
44.
The power per unit length P of an oscillating water column (OWC) is due to the action of a surface wave of amplitude A.
Which of the following correctly relates P and A, and correctly identifies the nature of the energy of the water column? 
a)
A
b)
B
c)
C
d)
D
45.
Global warming reduces the ice and snow cover on Earth. Which of the following correctly describes the changes in albedo and rate of energy absorption by Earth? 
a)
A
b)
B
c)
C
d)
D
46.
Greenhouse gases 
a)
reflect infrared radiation but absorb ultraviolet radiation. 
b)
reflect ultraviolet radiation but absorb infrared radiation. 
c)
transmit infrared radiation but absorb ultraviolet radiation. 
d)
transmit ultraviolet radiation but absorb infrared radiation. 
47.
Changes in the climate are leading to a reduction in ice cover on Earth. Which of the following describes, for Earth, the change in albedo and the change in the rate of energy absorption? 
a)
A
b)
B
c)
C
d)
D
48.
What is increased in a sample of uranium ore when nuclear fuel is enriched? 
a)
A
b)
B
c)
C
d)
D
49.
A black body of surface 1.0 m2 emits electromagnetic radiation of peak wavelength 2.90 × 10–6 m. Which of the following statements about the body are correct?
I. The temperature of the body is 1000 K.
II. The energy radiated by the body in one second is 5.7 × 104 J.
III. The body is a perfect absorber of electromagnetic radiation. 
a)
I and II only 
b)
I and III only 
c)
II and III only 
d)
I, II and III 
50.

A beam of monochromatic radiation is made up of photons each of momentum p. The intensity of the beam is doubled without changing frequency. What is the momentum of each photon after the change?

a)

p/2

b)

p

c)

2p

d)

4p

51.

Three observations of the behaviour of electrons are


I. electron emission as a result of the photoelectric effect

II. electron diffraction as an electron interacts with an atom

III. emission of radio waves as a result of electrons oscillating in a conductor.


Which observations are evidence that the electron behaves as a particle?

a)

I and II only

b)

I and III only

c)

II and III only

d)

I, II and III

52.

Different metal surfaces are investigated in an experiment on the photoelectric effect. A graph of the variation of the maximum kinetic energy of photoelectrons with the frequency of the incident light is drawn for each metal. Which statement is correct?

a)

All graphs have the same intercept on the frequency axis.

b)

The work function is the same for all surfaces.

c)

All graphs have the same slope.

d)

The threshold frequency is the same for all surfaces.

53.

A metal surface is struck with light of λ = 400 nm, releasing a stream of electrons. If the light intensity is increased (without changing λ ), what is the result?

a)

More electrons are emitted in a given time interval

b)

Fewer electrons are emitted in a given time interval

c)

Emitted electrons are more energetic

d)

Emitted electrons are less energetic

54.

A small point mass m is placed at the same distance from two identical fixed spherical masses far from any other masses. The point mass is released from rest. The point mass will....

a)

move upwards.

b)

stay where it is.

c)

move towards P and stop there.

d)

oscillate about point P.

55.

A beam of coherent light is incident on a single slit of width b. After passing through the slit, the light is incident on a screen at a distance D from the slit.


Which of the following changes, carried out separately, in respect of b and D will result in an increase in width of the first diffraction maximum formed on the screen?

a)

b decrease and D increase.

b)

b increase and D increase.

c)

b decrease and D decrease.

d)

b increase and D decrease.

56.
A standing wave is formed on a string.  Which of the following statements is/are true?
∎  Progressive waves are travelling along the string in both directions.
∎  The standing wave is an example of superposition.
∎  The wavelength of the standing wave is d.
a)
1, 2 and 3
b)
Only 1 and 2
c)
Only 2 and 3
d)
Only 1
57.
The stationary dot is called:
a)
a node.
b)
an anti-node.
c)
the amplitude.
d)
the not moving bit.
58.
A standing wave:
a)
transports energy but does not move.
b)
is composed of a single travelling wave.
c)
stores energy.
d)
makes a loud noise.
59.
a)
A
b)
B
c)
C
d)
D
60.
a)
A
b)
B
c)
C
d)
D
61.

The term coherence relates to ______.

a)

the phase relationship between two waves

b)

the polarization state of two waves

c)

the diffraction of two waves

d)

the amplitude of two waves

62.

A diffraction grating is used to measure the wavelength of monochromatic light, as shown in the diagram.

The spacing of the slits in the grating is 1.00 x10-6 m. The angle between the first order diffraction maxima is 70.0o.

What is the wavelength of the light?

a)

287 nm

b)

470 nm

c)

574 nm

d)

940 nm

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