Pre AP Electrostatics

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

• positive

• negative

• neutral

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

• positive
• negative
• No charge

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After you rub a balloon on your hair, what charge does the balloon have?

• Positive
• Negative
• Neutral

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After you rub a balloon on your hair, what charge does your hair have?

• Positive
• Negative
• Neutral

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What do you call the process of charging a conductor by bringing it near another charged object?

• induction

• electrification

• friction

• contact

Which statement is true of a positively charged object?

• Positively charged objects do not contain any electrons.

• Positively charged objects do not contain neutrons or electrons.

• There is a fewer electrons than protons on a positively charged object.

• The protons and the electrons are both positively charged on such objects.

What method of static charging is shown in this picture of the child sliding down the plastic slide?

• Contact

• Friction

• Grounding

• Induction

Which electrostatics phenomena is shown in this picture as the charges rearrange themselves as the charged rod is brought close?

• Contact

• Friction

• Grounding

• Induction

Why does the child's hair stick up as he slides down the slide?

• The boy is grounded since he's at the bottom of the slide

• He gained a charge from the slide, and since he's not grounded, his hairs have the same charge so they repel one another

• He gained a charge from the slide, and since he's not grounded, his hairs have opposite charges so they repel one another

• When hair is neutral, some have a positive side and some have negative side, so they will attract to each other, making it stand up

What is the end result of charging by friction?

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

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

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

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

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