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2013 - WAEC Physics Past Questions and Answers - page 1

1

The rising of a liquid in an open and ended glass tube of narrow bore is

A
osmosis
B
adhesion
C
capillarity
D
surface tension
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2

Which of the following units is equivalent to the watt?

A
kgms-2
B
kgm2s-3
C
kgm2s-2
D
kgm2s-1
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3

Which of the following statements about pressure in a liquid is correct?

A
the pressure in a liquid increases with depth
B
the higher the density of a liquid, the lower the pressure it exerts
C
pressure in liquid act only in a direction perpendicular to the sides of the containing vessel
D
pressure is independent of the acceleration due to gravity
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4

Solid friction, like viscosity is

A
independent of the surface area in contact
B
independent of the relative motion between layers
C
dependent on normal reaction
D
in opposition to motion
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5

The slope of a linear distance-times graph represents

A
acceleration
B
displacement
C
speed
D
velocity
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6

A body of mass 2kg is released from rest on a plane inclined at an angle of 60o to the horizontal. Calculate the acceleration of the body down the plane.[g = 10ms-2]

A
3.1ms-2
B
5.2ms-2
C
6.0ms-2
D
8.7ms-2
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7

The total area under a force-velocity graph represents

A
energy
B
momentum
C
power
D
pressure
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8

A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms-2]. Calculate the speed of projection

A
1.2ms-1
B
6.0ms-1
C
12.0ms-1
D
0.6ms-1
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9

A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms-2]. Determine the potential energy of the body at the maximum height of its motion

A
0.36J
B
0.72J
C
360.00J
D
720.00J
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10

The maximum displacement on either side of the equilibrium position of an object in simple harmonic motion represents

A
period
B
amplitude
C
wavelength
D
frequency
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