Electricity and Magnetism

Electric charges that do not move through a current are known as ____________.

• Magnetic

• Electric

• Electromagnetism

• Static Electricity

The area around an electric charge that experiences the force exerted by the electric

charge.

• Electric Field

• Electric Force

• Electric Poles

• Electric charge

The two types of charges in electric and magnetic forces are __________ and __________. (Select 2)

• positive

• negative

• neutral

the negative charges in the blue circle will .......the positive charges in the red circle

• repel

• attract

• nothing happens

when the number of the negative charges and positive charges are the same ,the object is ..........

• Negatively charged

• positively charged

• Neutral

in a............electrical charges can move easily

• insulator

• conductor

• nothing

in an...........electrical charges cannot move easily

• conductor

• insulator

• nothing

When you walk across a carpet in socks, they pick up charges. Later, there aren't any charges in your socks. what probably happened to the charges?

• The charges disappeared.

• The charges switched signs.

• The charges transferred to another object.

• The charges broke apart into smaller particles.

You rub two objects together briefly, and one attracts a few pieces of paper. What happens when the objects are rubbed together for a longer period of time?

• Nothing will happen because nothing has changed.

• The object will attract more pieces of paper because more time has passed.

• The object will attract more pieces of paper because the magnitude of the charge has increased.

• The objects will now repel.

glass, rubber, silk, and plastic are all examples of

• Conductors

• Insulator

• Thermel conductivity

• Materials