Fun with magnets Quiz

Which is a natural magnet?

• (a) Magnetite

• (b) Haemetite

• (c) Bakelite

• (d) Copper

Choose the wrong statement

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

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

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

• (d) Magnets attract all materials

Match the following

• a-iv,b-vii,c-i,d-ii,e-v,f-iii,g-vi

• a-vi,b-iv,c-i,d-ii,e-v,f-iii,g-vii

• a-i,b-iii,c-iv,d-ii,e-vi,f-vii,g-v

• a-ii,b-i,c-iii,d-iv,e-vi,f-v,g-vii

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 freely suspended bar magnet rests in

• (c) upside down

• (b) east-west directions

• a) north-south directions

• (d) any direction by chance

The south pole of the earth’s magnet is near the geographical ………………… pole

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Earth is a __________________

• Horseshoe Magnet

• Cylindrical Magnet

• Bar Magnet

• Ring Magnet

A bar magnet is cut into six pieces. Which one of the following is correct?

• 1. Each piece lost its magnetism.

• 2. Each piece is a magnet.

•   3. Half of the pieces have only south pole.

•   4. Half of the pieces have only north pole.

Q6. Magnetism of a magnet is lost by doing which of the following acts

• (a) Keeping in a box

• (b) Heating

• (c) Hammering

• (d) Both b and c

The ore of magnet is called

• (a) magnetite

• (b) magnesia

• (c) bauxite

• (d) hematite