test

What items are used in the experiment to explore static electricity?

• A balloon and a comb

• A Van de Graaff generator, a wig, and foil dishes

• A magnet and iron filings

• A battery and a light bulb

Are you enjoying the video lesson?

• Yes

• No

What happens when an atom gains or loses an electron?

• It becomes a new element

• It becomes unbalanced in charge

• It becomes heavier

• It changes color

How does a Van de Graaff generator create a high voltage?

• By transferring electrons to the ground

• By spinning very fast

• By using solar power

• By heating up the air around it

What happens to the wig when placed on the Van de Graaff generator?

• It becomes wet

• It changes color

• It melts

• The hairs stand up and move away from each other

Why do the foil dishes move away from each other on the Van de Graaff generator?

• Because they are attracted to each other

• Because they are magnetic

• Because they are heavy

• Because they become positively charged and repel each other