Electric Charge & Static Electricity

What are the two types of charges that objects may possess?

• A. positive (+) and positive (+)

• B. negative (-) and negative (-)

• C. positive (+) and negative (-)

• D. positive (+) and neutral (0)

When do objects become positive charged?

• when they lose protons

• when they gain protons

• when they gain electrons

• when they lose electrons

what happens when you touch a doorknob after rubbing your body on a woolly couch?

• A. The doorknob sends a burst of electric current into your body

• B. The doorknob sends millions of electrons into your fingers

• C. Millions of electrons go from your finger into the doorknob

• D. Your finger becomes negatively charged.

Tags

NGSS.MS-PS2-5

Why do things stick together in static electricity?

• A. The (+) charges on one material attract the (-) charges on the other material.

• B. The (-) charges on one material attract the (-) charges on the other material.

• C. The (+) charges on one material attract the (+) charges on the other material.

• D. Both materials have neutral charges.

Tags

NGSS.MS-PS2-3

Object 1 and 2 repel each other. Object 2 and 3 attract each other. How will object 1 and 3 interact?

• A. They will remain neutral.

• B. They will repel each other.

• C. They will attract each other.

• D. They will not affect each other.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If a substance has a higher number of electrons than protons, what type of charge does it have?

• A. A positive charge

• B. A negative charge

• C. neutral charge

• D. No charge at all

What causes the small electric shock that you get when you touch the doorknob?

• A. Unbalance of electrons in the house

• B. The doorknob being negatively charged

• C. Your body being positively charged

• D. The doorknob getting some extra electrons from your body

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The first object is negatively charged. What is the charge of the second object if they attract?

• A. negative

• B. Neutral

• C. Positive

• D. Zero

Tags

NGSS.MS-PS2-3

What happens when a positively charged rod is brought near a neutral plastic ball?

• A. protons on the ball are attracted to the positive rod and move to the near side of the ball

• B. the protons on the ball repelled by the positive rod and move to the far side of the ball

• C. electrons in the ball are repelled to the far side of the plastic ball

• D. electrons in the ball are attracted to the far side of the ball

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

When you rub one material, such as a balloon, against another material, such as your hair, electrons are transferred from the atoms of the balloons to the atoms of your hair. Then, you have static electricity! What will be the effect of this to your hair?

• A. Your hair will stand on end

• B. Your hair will fall out

• C. Your hair will go limp

• D. Your hair will get wet.