Magnets and materials 2

A magnet is placed near unknown bar X.

There is no effect between them.

What could bar X be?

• magnetic material only

• non-magnetic material only

• magnet only

• magnetic material or non-magnetic material

Unknown bar P and Q are placed close to each other.

There is no effect between them.

What could bar P be?

• magnetic material or non-magnetic material only

• non-magnetic material or magnet only

• magnet or magnetic material only

• magnetic material or non-magnetic material or magnet

A steel bar is placed near unknown bar A.

There is no effect between them.

What could bar A be?

• magnetic material or non-magnetic material only

• non-magnetic material or magnet only

• magnet or magnetic material only

• magnetic material or non-magnetic material or magnet

Unknown bar C and D are placed close to each other.

They repel each other.

What could bar C be?

• magnetic material only

• non-magnetic material only

• magnet only

• magnetic material or non-magnetic material

A magnet is placed near unknown bar Y.

They attract each other.

What could bar Y be?

• magnetic material only

• magnet only

• magnet or magnetic material only

• magnet or magnetic material or non-magnetic material

A magnet is placed near unknown bar Z.

They repel each other.

What could bar Z be?

• magnetic material only

• non-magnetic material only

• magnet only

• magnetic material or magnet only

Unknown bar S and T are placed close to each other.

They attract each other.

What could bar S be?

• magnetic material or non-magnetic material only

• non-magnetic material or magnet only

• magnet or magnetic material only

• magnetic material or non-magnetic material or magnet

A piece of iron is placed near unknown bar A.

They attract each other.

What could bar A be?

• magnetic material only

• magnet only

• magnet or magnetic material only

• magnet or magnetic material or non-magnetic material