Distribution of Charges

Which of the diagrams below best represents the charge distribution on a metal sphere when a positively charged plastic tube is placed nearby?

• A

• B

• C

• D

Tags

NGSS.HS-PS3-5

Charging by contact results in both objects having the same charge.

• TRUE

• FALSE

• I DON'T KNOW

• I'M NOT SURE

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Transferring a charge without touching is ___

• Conduction

• Grounding

• Induction

• Polarization

You rubbed a balloon to your hair several times, what is the charge of your hair after the action?

• Negative

• Positive

• Neutral

• None of the above

Tags

NGSS.MS-PS2-3

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

• lose electrons

• gain electrons

• gain protons

• lose proton

Tags

NGSS.HS-PS2-4

During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that ...

• The plastic strip acquired extra protons from the cotton.

• The plastic strip acquired extra protons from the charging process

• Protons were created as the result of the charging process

• The plastic strip lost electrons to the cotton during the charging process

If two balloons have the same charge, what will happen if you place them close to each other?

• Nothing

• They will be attracted

• They will pop

• They will push each other away.

Tags

NGSS.HS-PS2-4

Electric charges can move most easily on which of the following objects?

• glass tube

• metal plate

• rubber tire

• plastic cup

What is the end result of charging by friction?

• Both objects have the same charge, so they will attract one another.

• Both objects have the same charge, so they will repel one another.

• Both objects have the opposite charge, so they will attract one another.

• Both objects have the opposite charge, so they will repel one another.

Tags

NGSS.HS-PS2-4

Which of the following best describes the charge distribution in a polarized atom?

• Evenly distributed

• Concentrated at the center

• Shifted to one side

• Completely absent