Electricity, Magnets, & Electromagnetism

Front

What summarizes the law of electric charges?

Back

Charges that are opposite in nature attract; charges that are the same in nature repel.

Front

What happens when you put two north poles of magnets together?

Back

They repel each other.

Front

What type of electric device did Faraday create?

Back

The earliest electric motor.

Front

What should all wires used to carry electricity be covered with?

Back

An insulating material.

Front

What creates magnetic fields?

Back

Moving electric charges.

Front

What are the two types of electric charges?

Back

Positive and negative.

Front

What is an electromagnet?

Back

A magnet created by electric current.

Front

What is the unit of electric current?

Back

Ampere (A).

Front

What is static electricity?

Back

Electric charge that is at rest.

Front

What is the function of a circuit breaker?

Back

To protect an electrical circuit from damage caused by overload or short circuit.