EO4: EM, Motors, and Generators

Front

What is a generator?

Back

A generator is a device that converts mechanical energy into electrical energy by using a spinning turbine to move magnets.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that can be turned on and off by controlling the flow of electricity through a coil of wire.

Front

What component becomes a temporary magnet when electricity flows through it?

Back

The core of an electromagnet becomes a temporary magnet when electricity flows through the circuit.

Front

What do electric motors convert?

Back

Electric motors convert electrical energy into mechanical energy.

Front

What happens to a nail when the wire is disconnected from the battery?

Back

The nail would no longer be a magnet when the wire is disconnected from the battery.

Front

What is the principle behind how generators work?

Back

Generators work on the principle of electromagnetic induction, where a changing magnetic field induces an electric current.

Front

What is the difference between a motor and a generator?

Back

A motor converts electrical energy into mechanical energy, while a generator converts mechanical energy into electrical energy.

Front

What is the role of a turbine in a generator?

Back

The turbine spins to move magnets, which generates electric current in a generator.

Front

What is the function of a wire coil in an electromagnet?

Back

The wire coil creates a magnetic field when an electric current passes through it, making it a temporary magnet.

Front

What happens to the magnetic field of an electromagnet when the current is turned off?

Back

The magnetic field disappears when the current is turned off.