REVISION QUIZZ CH#10 CLASS 5

How many poles does a magnet has?

• 2

• 3

• 4

• 6

Which one is a magnetic material?

• Nickel

• Glass

• Copper

• Aluminum

Every Magnet is surrounded by a

• Magnetic lines.

• Magnetic field

• Magnetic poles

• Surface area

A north pole of a magnet never attract

• South pole

• Both south and north pole

• North pole

• None of them

Which is is not a magnetic material?

• Iron

• Nickel

• Cobalt

• Glass

Needle of a magnetic compass move in the direction of the

• Moon's south and north

• Earth's south and west

• Earth's north and south

• Earth's north and west

We can magnetise a needle by rubbing it atleast ...........times on a magnet

• 20

• 30

• 35

• 45

Strength of Electromagnet can be increased by

• Decreasing the current

• Increasing the current

• Decreasing number of coils

• None of them

Which of the following does not use electromagnet?

• Speaker

• Maglev train

• Juicer

• Generator

Needle of a magnetic compass always point

• South pole

• North pole

• East

• West