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1.1 A bucket is at rest on a table.
Which ONE of the following is the reaction force to the weight of the bucket, as described by Newton’s Third Law?
A. Force of the table on Earth
B. Force of the bucket on Earth
C. Force of the bucket on the table
D. Force of the table on the bucket (2)
1.2 A ball is dropped from a small height above the ground. Ignore air resistance.
The following pairs show physical quantities associated with the ball while it is falling to the ground.
In which ONE of these pairs will BOTH quantities change while the ball is falling?
A. Mechanical energy and weight
B. Kinetic energy and momentum
C. Gravitational acceleration and kinetic energy
D. Gravitational potential energy and gravitational force (2)
1.3 A ball is dropped from height h and strikes the floor with momentum p. Ignore air resistance.
The ball is NOW dropped from height 2h.
Which ONE of the following represents the momentum with which the ball NOW strikes the floor?
1.4 Object X exerts a gravitational force F on object Y when the distance between
the centres of the objects is r.
The distance r is now DOUBLED.
Which ONE of the following represents the gravitational force that X now exerts
on Y?
1.5 A force F moves an object P from point X to point Y along two different paths, 1 and 2, as shown below.
The work done by F in moving the object is the same for both paths. Which ONE of the following can be used to describe force F?
A. Normal force
B. Tension force
C. Frictional force
D. Gravitational force (2)
1.6 Which ONE of the following can be explained by the Doppler effect?
A. A stethoscope is used to listen to a person’s heartbeat.
B. An echo is heard when sound waves are reflected off a cliff.
C. The spectrum of light from an approaching star is shifted towards
shorter wavelengths.
D. Sound intensity decreases when the sound source moves away from
a stationary listener. (2)
1.7 Two oppositely charged point charges move towards each other.
Which ONE of the following is CORRECT?
The point charges move at …
A. constant velocity.
B. decreasing velocity.
C. constant acceleration.
D. increasing acceleration. (2)
1.8 Which ONE of the following phrases describes the emf of a battery?
A. Energy supplied per unit time
B. Charge transferred per unit time
C. Current supplied per unit charge
D. Maximum energy supplied per unit charge (2)
1.9 The graph below represents the output voltage versus time for an AC generator.
The speed of rotation of the generator’s coil is now DOUBLED.
Which ONE of the combinations below shows the CORRECT new peak output voltage and the time for ONE rotation?
1.10 A photon of light of energy 2X joules is shone onto a metal surface with work function X joules.
Which ONE of the following represents the maximum kinetic energy (in joules) of the electron ejected from the metal by this photon?
