Ch 11, 8th Grade

Match it! Select the correct answer from the pull down...Good luck!

A coil of wire with a current is called a ___

The ancient Greeks discovered a rock called ___ attracted materials containing iron.

A ___ is a device that has a magnetized needle that can spin freely

A device that changes the voltage of alternating current is a

Moving a wire coil upward in a magnetic field makes the needle of a galvanometer go left. What happens if we move the coil down?

___ is the angle between geographic north and the north to which a compass needle points.

What happens to the current in the armature of an electric motor when the commutator moves to a different brush?

The energy an object has due to its movement or position is called