Static Electricity

What is the cause of electric current?

• Mobile protons

• Mobile electrons

• Stationary electrons

• Stationary protons

What is the central rule of electricity regarding charges?

• Like charges attract, unlike charges repel.

• Opposite charges attract, like charges repel.

• Like charges and unlike charges both repel.

• Opposite charges and like charges both attract.

True or False: Like charges attract each other.

• True

• False

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What is the SI unit of charge?

• Ampere

• Coulomb

• Volt

• Ohm

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Electric charge has two types: ______ and negative.

• positive

• neutral

• static

• dynamic

Neutral atoms have equal numbers of ______ and protons.

• electrons

• neutrons

• ions

• molecules

Most matter has zero net ______.

• charge

• mass

• volume

• energy

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What is an object with a net charge of zero called?

• Electrically Neutral

• Positively charged object

• Negatively charged object

• Ion

Which of the following statements is true about a neutral object?

• It has more positive charges than negative charges.

• It has more negative charges than positive charges.

• It has an equal number of positive and negative charges.

• It has no charges at all.

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Electrically neutral objects can be attracted by a charged object because:

• they have no charge to repel the charged object.

• the charged object induces a charge on the neutral object.

• neutral objects are always attracted to charged objects.

• the neutral object becomes charged by contact.

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