STRENGTH OF MAGNETS

Which two metals will be attracted by a magnet?

• gold and silver

• iron and steel

• copper and aluminum

• lead and cobalt

The FARTHER two magnets are APART, the __________________ the force of magnetism.

• stronger

• same

• weaker

Amy used a magnet to hold one piece of paper on the refrigerator. Later, she tried to use the same magnet to hold a stack of four pieces of paper, and the magnet wouldn't stick to the fridge. Why did this happen?

• Paper repels magnets.

• The magnet couldn't hold due to the THICKNESS of the paper.

• A magnet isn't attracted to the refrigerator

• The magnet needs glue.

A magnet will pick up a NAIL, but not a TOOTHPICK because the nail...

• has rust on it.

• contains iron.

• is lighter than the penny.

• has a sharp point.

The force of magnetism is stronger when magnets are ________________

• cold

• farther apart

• closer together

• round