Electromagnets, Motors, & Generators Test Review PS2.1 & ETS1.1

Front

What is an electric generator?

Back

An electric generator is a device that converts mechanical energy into electrical energy.

Front

What is the first energy change in an electric motor?

Back

The first energy change in an electric motor occurs when a battery's chemical energy becomes electrical energy.

Front

What is the input and output of a motor?

Back

Input: electrical energy; Output: mechanical energy.

Tags

NGSS.MS-PS3-5

Front

What happens to the magnetism of an electromagnet when the electric current is lost?

Back

The electromagnet would no longer be magnetic.

Front

How can you make an electromagnet stronger?

Back

You can make an electromagnet stronger by increasing the number of coils of wire and/or increasing the number of batteries used.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

What is the role of a battery in an electric motor?

Back

The battery provides the electrical energy needed to create motion in the motor.

Tags

NGSS.MS-PS3-5

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.

Tags

NGSS.MS-PS3-5

Front

What is magnetic field?

Back

A magnetic field is the area around a magnet where magnetic forces can be detected.

Tags

NGSS.MS-PS2-5

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Front

What is the effect of increasing the number of coils in an electromagnet?

Back

Increasing the number of coils in an electromagnet increases its strength.