ALL Multiple Choice questions from 2010-2013

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Preview of ALL Multiple Choice questions from 2010-2013

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2
Multiple choice questions
Each of Questions 1 to 25 is followed by four responses, A, B, C and D. For each question select
the best response and mark its letter on the answer sheet.
You are advised to spend approximately 45 minutes on this section.
1 The graph shows the variation with time, t, of the force, F, acting on a body.
F
X
0 t
0
What physical quantity does the area X represent?
A the displacement of the body
B the acceleration of the body
C the change in momentum of the body
D the change in kinetic energy of the body
2 Water of density 1000 kg m­3 flows out of a garden hose of cross-sectional area 7.2 × 10­4 m2
at a rate of 2.0 × 10­4 m3 per second. How much momentum is carried by the water leaving
the hose per second?
A 5.6 × 10­5 N s
B 5.6 × 10­2 N s
C 0.20 N s
D 0.72 N s
3 Which row, A to D, in the table correctly shows the quantities conserved in an inelastic
collision?
mass momentum kinetic energy total energy
A conserved not conserved conserved conserved
B not conserved conserved conserved not conserved
C conserved conserved conserved conserved
D conserved conserved not conserved conserved
WMP/Jan10/PHYA4/1

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Page 2

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What is the angular speed of a point on the Earth's equator?
A 7.3 × 10­5 rad s­1
B 4.2 × 10­3 rad s­1
C 2.…read more

Page 3

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Which one of the following statements concerning forced vibrations and resonance is correct?
A An oscillating body that is not resonating will return to its natural frequency when the
forcing vibration is removed.
B At resonance, the displacement of the oscillating body is 180° out of phase with the
forcing vibration.
C A pendulum with a dense bob is more heavily damped than one with a less dense bob of
the same size.
D Resonance can only occur in mechanical systems.…read more

Page 4

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The radius of a certain planet is x times the radius of the Earth and its surface gravitational
field strength is y times that of the Earth.…read more

Page 5

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Which one of the following statements about a charged particle in an electric field is correct?
A No work is done when a charged particle moves along a field line.
B No force acts on a charged particle when it moves along a field line.
C No work is done when a charged particle moves along a line of constant potential.
D No force acts on a charged particle when it moves along a line of constant potential.…read more

Page 6

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P
Gold
nucleus
An particle travels towards a gold nucleus and at P reverses its direction.
Which one of the following statements is incorrect?
A The electric potential energy of the particle is a maximum at P.
B The kinetic energy of the particle is a minimum at P.
C The total energy of the particle is zero.
D The total energy of the particle has a constant positive value.…read more

Page 7

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A 1000 µF capacitor, X, and a 100 µF capacitor, Y, are charged to the same potential difference.
Which row, A to D, in the table gives correct ratios of charge stored and energy stored by the
capacitors?
charge stored by X energy stored by X
charge stored by Y energy stored by Y
A 1 1
B 1 10
C 10 1
D 10 10
21
cross-sectional area 8.0 × 1028 free electrons
1.0 × 10­ 6 m2 per m3
current
8.0 A
0.…read more

Page 8

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An electron moves due North in a horizontal plane with uniform speed. It enters a uniform
magnetic field directed due South in the same plane. Which one of the following statements
concerning the motion of the electron in the magnetic field is correct?
A It accelerated due West.
B It slows down to zero speed and then accelerates due South.
C It continues to move North with its original speed.
D It is accelerated due North.…read more

Page 9

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Multiple choice questions
Each of Questions 1 to 25 is followed by four responses, A, B, C and D. For each question select
the best response and mark its letter on the answer sheet.
You are advised to spend approximately 45 minutes on this section.
1 Which one of the following statements is correct?
The force acting on an object is equivalent to
A its change of momentum.
B the impulse it receives per second.
C the energy it gains per second.…read more

Page 10

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A mass on the end of a string is whirled round in a horizontal circle at increasing speed until
the string breaks. The subsequent path taken by the mass is
A a straight line along a radius of the circle.
B a horizontal circle.
C a parabola in a horizontal plane.
D a parabola in a vertical plane.
5 A particle of mass m moves in a circle of radius r at uniform speed, taking time T for each
revolution.…read more

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