Mrs. Davis rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.

• The balloons will attract each other.

• The balloons will become positively (+) charged.

• The balloons will pop.

If an object has the same number of positive and negative charges, its electrical charge is...

• positive
• negative
• neutral or no charge
• opposite

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

• opposite charges
• like charges

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If two charges repel each other, the two charges must be

• Positive and neutral

• Positive and negative

• positive and neutral

• negative and negative

Tags

NGSS.MS-PS2-3

If an object has more positive than negative charges, its electrical charge is...

• positive
• negative
• neutral or no charge
• opposite

Static means...

• not moving
• moving slowly
• moving quicky

Will the balloons ATTRACT or REPEL each other?

• 
• 

Tags

NGSS.HS-PS3-5

When negative charges on a cloud cause positive charges to build up on the ground, what may happen?

• 
• 

Tags

NGSS.MS-ESS2-5

NGSS.MS-PS2-3

What is the purpose of a lightning rod?

• So birds won't sit on the roof

• To look cool

• To safely send electric charges from lightning into the ground

Charging by Friction results in two objects with the same charge.

• True
• False

Tags

NGSS.MS-PS2-3