Grade 10 Multiple Choice Questions Click here to start the presentation Click here to start the...

Grade 10

Multiple Choice Questions

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Instructions to students

QUESTION 1

Name the effect shown in the diagram.

A Magnetizing

B Electromagnetic induction

C Charging

D Earthing

Which properties make materials suitable for use as a core in an electromagnet?

A It attracts another magnet.

B difficult to magnetise and easy to demagnetise

C difficult to magnetise and retains magnetic strength

D easy to magnetise and demagnetise

QUESTION 2

Which particles that flows through the wire as the circuit is closed?

A Electrons

B protons

C neutrons

D electrons and protons

QUESTION 3

What is the part of a a.c generator acts as contact with coil and external circuit?

A the armature

B the brushes

C the commutator

D the slip rings

QUESTION 4

Which magnetic device is shown in the diagram?

A. Electric bell

B. Relay

C. Loudspeaker

D. Microphone

QUESTION 5

Why do people get electric shocks as shown in the diagram

A Door knob has current

B Body provides path for electrons to flow

C. Body is charged

D body is an insulator

QUESTION 6

Which of the following will not affect induced e.m.f of a coil?

A moving the wire faster

B using a stronger magnet

C. Having more turns in the coil

D Insulating the wire

QUESTION 7

The following diagram show the circuit symbol of an electric component. What is the component shows

A Fuse

B Fixed resistor

C Cell

D variable resistor

QUESTION 8

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