fun with magnets

Which is an example of a magnetic substance?

(a) Iron

(b) Nickel

(c) Cobalt

(d) All of these

• A

• B

• C

• D

When a bar magnet is brought near iron dust, most of the dust sticks

(a) near the middle

(b) equally everywhere

(c) near two ends

(d) at the middle and ends

• A

• B

• C

• D

A freely suspended bar magnet rests in

(a) north-south directions

(b) east-west directions

(c) upside down

(d) any direction by chance

• A

• B

• C

• D

Attraction is seen between the poles of two bar magnets in the case of

(a) N-pole of one magnet with N-pole of other

(b) N-pole of one magnet with S-pole of other

(c) S-pole of one magnet with S-pole of other

(d) all of these cases will show attraction

• A

• B

• C

• D

Choose the wrong statement

(a) Heat can destroy magnetic properties of a magnet.

(b) Magnets are made up of different materials and different shapes.

(c) There is a maximum attraction in middle of a magnet.

(d) Magnetite does not show magnetic properties.

• A

• B

• C

• D

Which two ends of a magnet are called magnetic poles?

(a) North pole

(b) South pole

(c) North and south pole

(d) Self demagnetisation

• A

• B

• C

• D

Magnets attract

(a) wood

(b) plastic

(c) paper

(d) iron

• A

• B

• C

• D

North and south poles are found to exist separately.

• TRUE

• FALSE

This magnet is called as

• bar magnet

• horseshoe magnet

• cylindrical magnet

• ring magnet

this device is called as

• magnetic compass

• compass

• divider

• locator