Magnetism_01C

Four plotting compasses are placed near a bar magnet. Which plotting compass is shown pointing in the correct direction?

• A

• B

• C

• D

Four plotting compasses are placed in the magnetic field of two identical bar magnets as shown in the diagram. WHich compass is shown pointing in the wrong direction?

• A

• B

• C

• D

A chain of steel nails and a chain of iron nails hang from a strong magnet. The chains are then carefully removed from the magnet. What happens to the chains?

• Both chains fall apart.

• Both chains stay together.

• Only the chain of iron nails falls apart.

• Only the chain of steel nails falls apart.

Four nails, A, B, C and D, are tested to find which makes the strongest permanent magnet. One of the nails is placed against a bar magnet and the number of paper clips which the nail can support is recorded. The bar magnet is then removed and the number of paper clips remaining attached to the nail is recorded. Each nail is tested in turn.

• A

• B

• C

• D

A horseshoe magnet is brought near to an unmagnetised iron bar. Which row in the table shows the magnetic poles induced in the iron bar and the direction of the forces between the bar and the magnet?

• A

• B

• C

• D

The diagram shows a magnet being brought near to an unmagnetised iron bar. This causes the iron bar to become magnetised. Which magnetic pole is induced at X and how is the iron bar affected?

• A

• B

• C

• D