Science Topic 2 Test

Shortening the distance is one way to make the electric forces between two objects stronger.

• True

• False

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1. __________ means to push away.

• a. attract
• b. insulator
• c. repel

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2. The push or pull of charged objects on each other is an _______________.

• a. electrical force
• b. repel
• c. neutral

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3. If the number of positive and negative charges are the same, the matter is ____________________________.

• a. positive
• b. neutral
• c. negative

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4. In an ________________________ electric charges cannot move easily.

• a. conductor
• b. insulator

5. In a ______________________, electrical charges can move easily.

• a. conductor
• b. insulator

6. In a _____________________ the magnetism cannot be turned on and off.

• a. permanent magnet
• b. electromagnet

7. In a _____________________ the magnetism can be turned on and off.

• a. permanent magnet
• b. electromagnet

8. ______________ means to pull on another object.

• a. repel
• b. charge
• c. attract

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9. When matter has an overall positive charge or negative charge, we say that it has an ___________________________.

• a. magnet
• b. electrical charge
• c. conductor