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

Front

What is produced by moving a permanent magnet through a coil of copper wire?

Back

Electricity

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Front

What happens when we switch the direction of the electric current in an electromagnet?

Back

The poles of the electromagnet are reversed.

Tags

NGSS.HS-PS2-5

Front

What three minerals are attracted to a magnet?

Back

Iron, nickel, cobalt.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

What generates magnetism?

Back

Moving electrons.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Front

What does a motor convert electrical current into?

Back

Mechanical force.

Tags

NGSS.HS-PS3-3

Front

What is an electromagnet?

Back

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

Tags

NGSS.HS-PS2-5

Front

What is the principle behind how generators work?

Back

Generators convert mechanical energy into electrical energy using electromagnetic induction.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Front

What is the role of a commutator in a motor?

Back

It reverses the direction of current flow to maintain rotation.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Front

What is the relationship between electricity and magnetism?

Back

Electricity can create a magnetic field, and a changing magnetic field can induce an electric current.

Tags

NGSS.HS-PS2-5

Front

What is Faraday's Law of Electromagnetic Induction?

Back

The induced electromotive force in any closed circuit is equal to the rate of change of the magnetic flux through the circuit.

Tags

NGSS.HS-PS2-5