Static Charges

Walking across a carpet is an example of charge being transferred by

• friction.

• induction.

• contact.

The girl's hair and the comb are attracting  one another.  The hair and the comb have

• opposite charges

• like charges

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NGSS.MS-PS2-3

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Static electricity occurs because...

• of thunder

• of humid air

• of neutral particles adding up

• of a buildup of charges on an object.

The Balloon in this picture has a ​ (a)   charge, because it has ​ (b)   protons and electrons.​

• neutral

• equal

• positive

• negative

• more

• less

• no

• magnetic

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NGSS.MS-PS1-1

The ball on the string is being repelled (pushed away) by the metal bar.

What must be the charge on the ball?

• postivie

• neutral

• negative

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NGSS.MS-PS2-3

In the bottom of the picture, what explains why the balloons are repelling each other?

• opposites attract

• like charges in the balloon are repelling each other

• the helium has negative charges

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What is the term for the buildup of electric charge on an object? (a)  

• electric discharge

• static electricity

• electric field

• electrical conductor

Two balloons are hanging from a stick.

Both balloons have a positive charge.

How would you expect the balloons to move?

• there would be no movement

• towards each other

• away from each other

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Place the terms into the correct spots on the image:

b

c

d

e

a

Opposite Charges

Like Charges

Electrons

Repel

Attract

Tags

NGSS.MS-PS2-3

An atom becomes _______ when it gains electrons.

• Positive

• Neutral

• Negative

• Invisible