Which of these is caused by static electricity?

• A magnet attracts a paper clip

• Glue holds two pieces of paper together

• Socks taken from a clothes dryer stick together

• Ice sticks to a car’s windshield

Tags

NGSS.MS-PS2-3

The shock you sometimes feel when you touch a metal doorknob on a dry day is electric ________.

• Circuit

• Current

• Discharge

• Resistance

Tags

NGSS.MS-PS2-3

Which choice describes the behavior of an electric charge?

• Like charges attract. Unlike charges repel.

• Like charges repel. Unlike charges attract.

• Like charges attract. Unlike charges attract.

• Like charges repel. Unlike charges repel.

An example of a conductor is:

• Steel

• Wool

• Plastic

• Fabric

When you charge an electroscope by touching it with a charged balloon, the process is called _____.

• friction
• conduction
• induction
• grounding

A neutral object becomes negatively charged when it loses electrons.

• true
• false

Positive charges are fixed (do not move).

• True

• False

• Neither true nor false.

What is the end result of charging by contact?

• Both object have the same charge, so they will attract one another

• Both object have the same charge, so they will repel one another

• Both object have the opposite charge, so they will attract one another

• Both object have the opposite charge, so they will repel one another

When a balloon is rubbed on clothes it acquires a charge by ___________

• Induction
• reduction
• friction 
• concuction

Use the electrostatic series attached to answer the following:

When a ruber baloon rubbed on human hair, the baloon will become

• Positive

• Negative

• The same charge as the hair

• Neutral