Unit 1 Review

Front

What happens when a permanent magnet is moved through a coil of wire?

Back

A current will be generated in the wire.

Front

What do all magnets have regardless of their shape?

Back

Two magnetic poles.

Front

What device converts mechanical energy into electrical energy?

Back

Generator.

Front

What is the term for the angle between geographic north and the north to which a compass needle points?

Back

Declination.

Front

How can magnets be aligned?

Back

North-North or North-South.

Front

What is the definition of a magnet?

Back

An object that produces a magnetic field.

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.

Front

What is the principle of electromagnetic induction?

Back

The generation of an electromotive force (EMF) across a conductor when it is exposed to a varying magnetic field.

Front

What is the role of a solenoid?

Back

A coil of wire that generates a magnetic field when an electric current passes through it.

Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet produces a constant magnetic field, while an electromagnet's field can be turned on and off.