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Electric Charge Answers

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What would make oppositely charged objects attract each other more?

A
increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object
B
decreasing the positive charge of the positively charged object and decreasing the negative charge of the negatively charged object
C
increasing the distance between the positively charged object and the negatively charged object
D
maintaining the distance between the positively charged object and the negatively charged object
2
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Two balls are placed near one another and hang down, as shown below.

Question illustration
A
Neither ball has a charge.
B
The balls are both positively charged.
C
One ball is positively charged, and the other is negatively charged.
D
Each ball has a charge, but the type of charge is unknown.
3

An electroscope is a device that detects charge on objects that touch it or are brought near it. John rubs a piece of cotton fabric on a plastic rod and then touches the rod to the electroscope.

A
John charges the rod through induction, then charges the electroscope through friction.
B
John charges the rod through conduction, then charges the electroscope through induction.
C
John charges the rod through friction, then charges the electroscope through induction.
D
John charges the rod through friction, then charges the electroscope through conduction.
4

Shareen performs a skit to model a method of charging. In the skit, a painter shakes her hand and gets paint on her.

A
It models induction because the painter represents a neutral object and the paint represents electrons that are transferred through rubbing.
B
It models conduction because the painter represents a charged object and the paint represents electrons that are transferred through contact.
C
It models induction because the painter represents a charged object and the paint represents electrons that are transferred through contact.
D
It models conduction because the painter represents a neutral object and the paint represents electrons that are transferred through rubbing.
5

Why does Chelsea see sparks as she removes her clothes from the clothes dryer?

A
conduction
B
induction
C
static discharge
D
loss of protons
6

A small, positively charged ball is moved close to a large, positively charged ball. Which describes how the small ball likely responds when it is released?

A
It will move toward the large ball because like charges repel.
B
It will move toward the large ball because like charges attract.
C
It will move away from the large ball because like charges repel.
D
It will move away from the large ball because like charges attract.
7

The diagram shows two charged objects, X and Y.

Question illustration
A
X: positiveY: negative
B
X: negativeY: neutral
C
X: negativeY: neutral
D
X: positiveY: positive
8

What is the name of the area around a charged object where the object can exert a force on other charged objects?

A
electric field
B
electric charge
C
electric induction
D
electric force
9

Hiro rubs an inflated balloon on his hair, and his hair sticks to the balloon. As he moves the balloon away from his head, how does the electric force change?

A
The electric force increases because the balloon loses its charge.
B
The electric force increases because the distance increases.
C
The electric force decreases because the distance increases.
D
The electric force decreases because his hair loses its charge.
10

A negatively charged rod is placed near two neutral metal spheres, as shown below.

Question illustration
A
The spheres are charged through friction.
B
The spheres develop the same charge.
C
Electrons move from the rod to Sphere A.
D
Electrons move from Sphere A to Sphere B.

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Electric Charge Answers — LHS Physical Science