#9 Magnetism, Motors and Generators

Two wires next to each other

A piece of aluminum

A coil of wire carrying current

A plastic insulator

the voltage pushes the motor around.

an electromagnet attracts and then repels magnets in the rotor.

it is converting mechanical energy to electrical energy.

the electric current is always flowing in the same direction.

electromagnets are induced in a wire.

electrons are induced in a magnet by a moving wire.

current is induced in a wire by a moving magnet.

a magnetic field is created in a coil of wire by a current.

holding a powerful magnet still in the middle of a coil of wire.

sliding a bar magnet into a coil of wire.

moving a coil of wire toward an electromagnet.

sliding a bar magnet out of a coil of wire.

A current in a wire causes magnets to spin around a rotor

A spinning rotor induces a current in a wire

Voltage is decreased in a coil of wire by by a coil of wire with more turns

Voltage is increased in a secondary coil with more turns of wire