Grade 10

Multiple Choice Questions

Click here to start the presentation

In the presentation click Your choice of answers to see the feedback. When you click the

answer you would know whether it is correct or wrong. It if is

wrong, you will have to try again.

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

Oops!

Back