Electricity Energy and Electrostatic Charges

What types of charges attract?

• Positive and Positive
• Positive and Neutral
• Negative and Neutral
• Positive and Negative

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

• friction.
• induction.
• contact.
• static electricity

Electric charges that are alike _______ each other.

• Attract
• Repel

The teacher 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.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What charge does a proton have?

• negative (-)
• positive (+)
• neutral or no charge (0)

What charge does an electron have?

• negative (-)
• positive (+)
• neutral or no charge (0)

Tags

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

• A positive charge.
• A negative charge.
• A neutral charge
• No charge at all

What happens when you touch a metal doorknob after rubbing your shoes on the carpet?

• The doorknob sends a burst of electric current into your body
• Millions of electrons go from your finger into the doorknob
• The doorknob sends millions of electrons into your finger
• our finger becomes negatively charged

Tags

NGSS.MS-PS2-3

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True or False, Lighting is a form of static electricity.

• True
• False

What makes a charged balloon stick to the wall?

• Protons transferred to the balloon when it was rubbed on metal.
• Extra electrons on the surface of the balloon push away electrons in the wall, leaving a positively charged area.
• The rubber in the balloon has a magnetic field that pulls on the wood in the wall.
• Electricity in the balloon creates a magnetic field that attracts the metal in the wall.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5