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QUESTION 1: MULTIPLE-CHOICE QUESTIONS
Various options are provided as possible answers to the following questions. Each
question has only ONE correct answer. Choose the answer and write only the letter
(A–D) next to the question numbers (1.1 to 1.10) in the ANSWER BOOK, e.g. 1.11 E
This is how your instructions will be in the exam . For this practice, just select the correct answer.
Lets GO.
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?
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?
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?
1.6 Which ONE of the following can be explained by the Doppler effect?
1.7 Two oppositely charged point charges move towards each other.
Which ONE of the following is CORRECT?
The point charges move at …
1.8 Which ONE of the following phrases describes the emf of a battery?
1.9 The graph below represents the output voltage versus time for an AC
generator.
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?