Motors and Generators Test Review

Front

What happens when the north pole of one magnet is connected to the south pole of another magnet?

Back

They attract each other.

Front

What is the flow of energy through a motor?

Back

battery -> electrical current -> copper wire rotor -> magnet -> mechanical energy

Front

How does a motor work?

Back

When a wire that carries electrical current is placed in a magnetic field, the wire experiences a force.

Front

What is a continuous path of conductors that allows electricity to pass through easily called?

Back

Closed circuit

Front

What is the role of a light bulb in a circuit?

Back

It acts as a transformer.

Front

What is a generator?

Back

A device that converts mechanical energy into electrical energy.

Front

What is the difference between an open circuit and a closed circuit?

Back

An open circuit has a break that prevents current from flowing, while a closed circuit allows current to flow.

Front

What is electrical current?

Back

The flow of electric charge through a conductor.

Front

What is a magnetic field?

Back

An area around a magnet where magnetic forces can be felt.

Front

What is the purpose of a battery in a circuit?

Back

To provide electrical energy.