Electricity and Magnetism Review

A coil wrapped around an iron core is an _________________________________.

• electromagnet

• magnetic field

• closed

• insulator

_________________________________ is the area around a magnet; strongest at the poles.

• insulator

• heart

• closed

• magnetic field

Electricity flows in a _________________________________ circuit.

• open

• closed

• insulator

• heart

Electricity from a wall outlet has enough energy to stop your _________________________________.

• dance

• magnetic field

• heart

• thoughts

_________________________________ make up everything.

• atoms

• magnetic field

• electromagnet

• insulator

Plastic is an _________________________________.

• resistor

• conductor

• insulator

• closed

All atoms have a positive charge.

• True

• False

All magnets have two poles.

• True

• False

Earth has a magnetic field.

• True

• False

There is more than one way to increase the strength of an electromagnet.

• True

• False