electric charge and coulombs law

Two like charges

•  neutralize each other.
• repel each other. 
• must be neutrons. 
• attract each other.

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NGSS.HS-PS2-4

An atom loses an electron.  What type of charge does it have now?

• positive
• negative

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NGSS.HS-PS1-2

An atom gains an electron.  What type of charge does it have now?

• positive
• negative
• No charge

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is not a good conductor of electricity?

• copper
• silver
• Glass
• aluminum

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NGSS.HS-PS1-3

What is it called when an object gains a charge without touching a charged object but by being held near the charged object?

• Induction
• ESD
• Conduction
• Conducting path

How is the electric force between two charges affected when both of the charges are doubled?

• four times as much
• two times as much
• half as much
• one quarter as much

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NGSS.HS-PS2-4

Coulomb's law says that the force between any two charges depends

• directly on the size of the charges

• inversely on the square of the distance between the charges

• both are correct

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NGSS.HS-PS2-4

A positive ion has

• a 1 + charge
• more protons than electrons
• one proton
• more electrons than protons

The SI unit of charge is

• the ampere
• the newton
• the coulomb
• the joule

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NGSS.HS-PS2-4

Good insulators

• have electrons free to move around
• have tightly bound electrons
• have electrons do not move at all

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NGSS.MS-PS3-3