Coulomb's Law and Electric Fields

The charge of an electron is _____.

• Positive

• Negative

• Neutral

If an atom loses an electron, what is the charge of the atom now?

• Positive

• Negative

• Neutral

True/False. Charged objects are NOT attracted to neutral objects.

• True

• False

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A balloon acquires electrons when rubbed against clothing. This is an example of charging by _____.

• Induction

• Conduction

• Friction

Which particle can be transferred?

• Proton

• Electron

• Neutron

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When a glass rod is rubbed with silk, the glass rod becomes positively charged. What happens to the electrons?

• They are removed from the rod.

• They are added to the rod.

What combination of charges would result in an attractive electrostatics force?

• All charges

• Opposite Charges

• Same charges

• Only electrons

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Which is Coulomb's constant?

• k = 6.67 x 10^-11 N*m²/C²

• k = 9.8 N*m²/C²

• k = 9 x 10^-9 N*m²/C²

• k = 8.99 x 10⁹ N*m²/C²

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Which is NOT a way to increase force between two charged objects?

• Increase the charge of one of the objects

• Bring the objects closer together

• Make one of the objects bigger

• Increase the charge of both the objects

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If the charge of one object is doubled, what would happen to the force?

• Force would be reduced by half

• There would be no change

• The object would lose charge

• Force would be twice as strong

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