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- 1. Multiple Choice
When you walk across a carpet in socks, they pick up charges. Later, there aren't any charges in your socks. what probably happened to the charges?
The charges disappeared.
The charges switched signs.
The charges transferred to another object.
The charges broke apart into smaller particles.
- 2. Multiple Choice
You have 2 circular objects, and each has a positive charge near each other, but not touching. Which statement describes the force that is exerted on the objects due to their electric charge?
There is a force pushing both objects to the left.
There is a force pulling the objects toward each other.
There is a force pushing the objects away from each other.
There is no force on the objects due to their electric charge.
- 3. Multiple Choice
A repelling force occurs between two charged objects when the charges of are of __________.
like signs
unlike signs
equal magnitude
unequal magnitude
- 4. Multiple Choice
An attracting force occurs between two charged objects when the charges are of _______________.
like signs
unlike signs
equal magnitude
unequal magnitude
- 5. Multiple Choice
You have two pairs of charged objects interacting with each other. The first pair (A and B) are 10 cm apart. A has a +1 charge and B has a -1 charge.
Pair C and D are 17cm apart. C has a +1 charge, and D has a -1 charge.
Which of these statements is true?
There are no electric forces because the charges in each pair of objects cancel.
The electric force between A and B is smaller than the electric force between C and D.
The electric force between A and B is greater than the force between C and D.
The electric force between A and B is identical in magnitude to the electric force between C and D.
- 6. Multiple Choice
What happens when a rubber rod is rubbed with a piece of fur, giving the rod a negative charge?
Negative charges are moved from the rod to the fur.
Negative charges are moved from the fur to the rod.
Negative charges are added to the rod and the fur remains neutral.
Positive charges are removed from the rod, and the fur remains neutral.
- 7. Multiple Choice
What happens to the electric force between the objects when you increase the distance between a positively charged object and a negatively charged object? (Everything else remains constant.)
The electric force decreases.
The electric force increases.
The electric force remains constant.
There is not enough information to answer the question.
- 8. Multiple Choice
When you rub a neutral balloon on neutral carpet, the balloon will attract hair. What happened to the electric charge of the balloon?
Nothing, the hair's charge changed.
The charge of the balloon changed.
It became opposite.
It stays neutral.
- 9. Multiple Choice
What is an electric charge?
A physical property that results in static electricity.
The attraction and repulsion of objects.
Something you plug in.
A constant state.
- 10. Multiple Choice
What happens when a neutral material becomes attracted to a negatively charged object that is brought near it?
It doesn't become attracted.
The charges in the neutral object move around because of the nearby charged object.
The neutral material will repel the negatively charged object.
The neutral material loses some of it's positive charges.
- 11. Multiple Choice
You rub two objects together briefly, and one attracts a few pieces of paper. What happens when the objects are rubbed together for a longer period of time?
Nothing will happen because nothing has changed.
The object will attract more pieces of paper because more time has passed.
The object will attract more pieces of paper because the magnitude of the charge has increased.
The objects will now repel.
- 12. Multiple Choice
Which has a charge with the greatest magnitude?
An object with a charge of 0.
An object with a charge of -2
An object with a charge of +2
An object with a charge of -3
- 13. Multiple Choice
The ___________ _____________ is the force of attraction or repulsion between objects due to their charges.
electric charge
electric force
distance
variable
- 14. Multiple Choice
Can neutral objects become charged?
Yes, by wishing it to be so.
No, never.
Yes, by being near or in contact with a charged object.
No, not under any circumstance.
- 15. Multiple Choice
A physical property of matter that moves through wires and causes static electricity.
conservation of a charge
a circuit
electric charge
positive and negative
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