Characteristics of Electricity

Use the following information and image to answer the next 2 questions.

Three charged particles are placed close to one another. A, B, C, and D in the following diagram indicate four possible directions that the negative charge will move.

Which direction will the charge most likely take?
1. Direction D
2. Direction C
3. Direction B
4. Direction A
How are the two positively charged particles likely to behave?
1. They will be repelled and move away from each other
2. They will be attracted and move toward each other
3. They will both move in the same direction, away from the negative charge
4. They will begin to move in a circular motion
Which of the following does not reflect the laws of static charge?
1. Neutral charges repel
2. Opposite charges attract
3. Like charges repel
4. Neutral objects are attracted to charged objects
Use the following information to answer the next 2 questions.

A student rubs an acetate rod with cat's fur and then touches the rod to the top of an electroscope. She repeats this procedure of rubbing and touching several times.

What word best describes the type of electrical charging that is being performed?
1. Conduction
2. Induction
3. Negative
4. Positive
The electroscope being charged has two hanging metal leaves at the bottom. What is likely to result from the student's charging of the electroscope?
1. The metal leaves will move apart due to electrostatic repulsion
2. The metal leaves will move apart due to electrostatic attraction
3. The metal leaves will move toward each other due to electrostatic repulsion
4. The metal leaves will move toward each other due to electrostatic attraction
A charged fingertip approaches a doorknob and causes charge separation to occur in the doorknob. This type of charging is best described as
1. induction.
2. conduction.
3. negative.
4. positive.
Use the following information to answer the next 2 questions.

Rubbing a balloon against cat's fur cause the balloon to acquire and electrostatic charge. When the balloon is placed against a wall, it sticks.

Which of the following best explains why the balloon sticks to the wall?
1. The negatively charged balloon is attracted to the neutral wall
2. The negatively charged balloon is attracted to the negatively charged wall
3. The positively charged balloon is attracted to the positively charged wall
4. The balloon and wall exhibit magnetic attraction
When the charged balloon approaches the wall, it causes the wall to be charged by
1. induction.
2. conduction.
3. friction.
4. air movement.
Which of the following best describes a neutral object?
1. A neutral object contains relatively equal numbers of positive and negative charges
2. A neutral object has more positive than negative charges
3. A neutral object has more negative than positive charges
4. A neutral object contains no protons or electrons
As you put your hair brush down on a counter you notice hairs from the counter are pulled up toward the brush. This illustrates that electric force is
1. an action-at-a-distance force.
2. a contact force.
3. a repulsive force.
4. a positive force.

Characteristics of Electricity - Section 7.2 Quiz