Coulombs

Which is the value of the constant in Coulomb's equation?

• k = 9·10^-9

• k = 9.8

• k = 6.67·10^-11

• k = 9 ·10⁹

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NGSS.HS-PS2-4

As two oppositely charged particles approach each other, what happens to the electrical force between them?

• The attractive force increases

• The magnitude of the electric force decreases

• The repulsive force increases

• The magnitude of their charges increases

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NGSS.HS-PS2-4

What variable is a Coulomb the unit for?

• Charge

• Force

• Distance

• Mass

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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

According to Coulomb's Law, what happens to the electric force between two charges if the distance between them is doubled?

• The force is doubled

• The force is halved

• The force becomes four times stronger

• The force becomes four times weaker

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NGSS.HS-PS2-4

According to Coulomb's Law, what happens to the force between two charges if the charge of one is tripled and the distance between them is also tripled?

• The force remains unchanged

• The force is tripled

• The force is nine times greater

• The force is reduced to one-third

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NGSS.HS-PS2-4

If the distance between two charges is halved, how does the force between them change according to Coulomb's Law?

• It is halved

• It is quartered

• It is doubled

• It increases by four times

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NGSS.HS-PS2-4

What does Coulomb's Law describe?

• The relationship between electric current and magnetic fields

• The force between two charges being directly proportional to the product of their charges and inversely proportional to the square of the distance between them

• The rate of flow of electric charge

• The resistance offered by a material to the flow of electric current

Tags

NGSS.HS-PS2-4

What variables are involved in Coulomb's Law equation?

• Mass and velocity

• Charge and distance

• Time and acceleration

• Volume and pressure

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NGSS.HS-PS2-4

What is the unit of electric charge?

• Joule

• Newton

• Coulomb

• Ampere