Unit Test

Question 1

An object becomes positively charged when it

Revolt · Accepted Answer

loses electrons.

Question 2

Question 2

Revolt · Accepted Answer

They attract each other.

Question 3

Question 3

Revolt · Accepted Answer

They have no effect on each other.

Question 4

Question 6

Revolt · Accepted Answer

They repel each other.

Question 5

Question 7

Revolt · Accepted Answer

Conduction

Question 6

Use the drop-down menus to complete each statement. is the process of charging an object without touching it. is the process of charging a sphere by touching it with a charged rod.

Revolt · Accepted Answer

Induction; Selection 1: Induction; Selection 2: Conduction

Question 7

Fill in the word that completes each statement. Building up electric charges on a Van de Graaff generator is an example of static . Lightning is an example of static .

Revolt · Accepted Answer

Part 1: electricity; Part 2: discharge

Question 8

Sonia was experimenting with electric charges. She tied two inflated balloons together, held them next to each other, and rubbed both with a piece of wool.What did Sonia observe, and why?

Revolt · Accepted Answer

Sonia observed that the two balloons repelled each other. This is because both balloons acquired the same charge when she rubbed them with the piece of wool, and like charges repel each other.

Question 9

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

The two balloons repelled each other.; Both balloons acquired the same charge.; Like charges repel each other.

Question 10

As the distance between two charged objects increases, the strength of the electrical force between the objects

Revolt · Accepted Answer

decreases.

Unit Test Answers

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