Electric Charges and Fields

"Two objects that are not touching can exert a force on each other"

Which statement best supports this claim?

• John travoltage has a lot of negative electrons in his body

• John Travoltage rubs his foot on the carpet

• John's body had a positive charge due to a build up of electrons.

• John travoltage gets shocked even though he is not touching the door knob

When rubbed on the sweater the balloon gains an overall (a)   charge

Because the balloon has an overall negative charge, it is (a)   to the sweater because of its overall positive charge.

What is the best explanation for why the can moves toward the balloon after rubbing in in the boy's hair?

• The balloon and can are both neutral

• The balloon and the can have the same charge so they are attracted to each other

• The positive charges in the can are attracted to the negative charges in the balloon

• The balloon is positive and the can is negative

You pull a shirt out of your dryer. The shirt has a negative charge.

When the negatively charged shirt came near your brother he got a (a)   as the electrons jumped from the shirt to your brother.

What best describes how the sock could get stuck to the shirt in the picture?

• The sock's positive charge was attracted to the positive charges in the man's shirt.

• The sock and the shirt both have negative charges that attract.

• The sock's negative charge was attracted to the positive charges on the man's shirt.

• Both the sock and the shirt have neutral charges.

Opposite charges (a)   .

Like charges (a)   .

The following atom has too many electrons. This means it has a net (a)   charge.

When an atom has the same number of electrons and protons it is said to have a net (a)   charge.