Charging Methods

What do you call the process of bringing a charged object near a neutral object?

• induction
• polarization
• neutralization
• conduction

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NGSS.MS-PS2-5

When you charge a balloon by rubbing it on your hair this is an example of what method of charging?

• Friction
• Conduction
• Grounding
• Induction

The negatively charged balloon is brought near the two cans. What happens?

• The negative charges in Can B move towards the balloon
• The negative charges in Can A move away from the balloon
• The positive charges in Can B move towards the balloon
• The positive charges in Can A move away from the balloon

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Materials through which electrons move easily:

• insulator

• conductor

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If a negatively charged rod touches a conductor, the conductor will be charged by what method? 

• Friction
• Conduction
• Induction
• Convection

Which of these is the best definition of polarization?

• The object gains a positive or negative charge from another object.
• The charges in a neutral object separate due to a nearby charged object.
• Charges on a neutral object jump off onto a charged object due to attraction of opposite charges.
• Two objects attract each other because they are both charged.

A negatively charged rod is touched to the top of an electroscope. Which shows the resulting charge?

• A

• B

• C

• D

• E

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NGSS.HS-PS2-4

During induction, grounding is necessary in order for the neutral object to become charged.

• true

• false

Ms Pippin 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

For an object to have a positive charge, it must ____.

• lose electrons

• gain electrons

• lose protons

• gain protons

Tags

NGSS.MS-PS2-3