FUN WITH MAGNETS

Which is an example of a magnetic substance?

• Iron

• Nickel

• Cobalt

• All of these

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A freely suspended bar magnet rests in

• North-South direction

• East-west direction

• Upside down

• Any direction by chance

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Which is a natural magnet?

• Magnetite

• Haematite

• Bakelite

• Copper

Magnet attracts

• Wood

• Plastic

• Paper

• Iron

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The two ends of a magnet are called as

• North pole

• South pole

• North and South pole

• Self demagnetization

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North pole a magnet can be identified by

• Another magnet having its poles marked as North and South pole

• Another magnet no matter whether the poles are marked or not

• using an iron bar

• using iron filings

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Where is the force of attraction of the magnet maximum?

• At the sides

• All over the magnet

• At its poles

• At its centre

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Where does a compass work?

• Only is oceans or seas

• Only on land

• Only on high mountains

• At all the places within earth's magnetic field

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Harsha placed a magnet near a metal ball and observed that ball moved away. What does she conclude about the metal ball?

• It is a magnet

• It is made up of aluminium

• It is made up of copper

• It is not a magnet

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Three magnets A, B and c were dipped one by one in a heap of iron filings. The picture for the same is shown here. The strength of these magnets will be

• A > B > C

• A < B < C

• A = B = C

• A < B > C

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