Science Quick Check 3

Moving a magnet and a wire near each other produces an

• coil

• electric current

• bar magnet

Wrapping a coil of current-carrying wire around an iron coil such as a nail makes a

• magnet

• iron

• battery

Which parts are needed to make and operate an electromagnet?

• nail, battery

• battery, battery holder or tape, nail, copper wire

• wire, tape, nail

A device in which current produces magnetism is called an

• electromagnet

• battery

• coil

Where are huge electromagnets used?

• in a junkyard

• in a skyscraper

• in school