
Define electromagnet.

Important Questions on Magnets
Define magnetic material.

Define magnetic field.

Mariam has some pieces of metal. She does not know if each piece of metal is a permanent magnet, a magnetic material or non-magnetic material. For each piece of metal, say if it is a permanent magnet, a magnetic material or not magnetic. Give a reason for your answer.
One metal is attracted to both poles of a magnet.

Mariam has some pieces of metal. She does not know if each piece of metal is a permanent magnet, a magnetic material or non-magnetic material. For each piece of metal, say if it is a permanent magnet, a magnetic material or not magnetic. Give a reason for your answer.
One substance does not move at all when a magnet is placed near it.

Mariam has some pieces of metal. She does not know if each piece of metal is a permanent magnet, a magnetic material or non-magnetic material. For each piece of metal, say if it is a permanent magnet, a magnetic material or not magnetic. Give a reason for your answer.
One substance is attracted to one end of a magnet and repelled by the other end.

Which of the following mixtures can be separated by a magnet and why?
Iron and nickel

Which of the following mixtures can be separated by a magnet and why?
Steel and plastic

Which of the following mixtures can be separated by a magnet and why?
Wood and copper
