Electricity and Energy Quiz

Which of the following is an insulator of electricity?

• Iron

• Gold

• Plastic

• Aluminum

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Which of the following is a conductor of electricity?

• Glass

• Rubber

• Cloth

• Water

Marcus plugged in the fan and the blades began moving. What energy transformation took place?

• Electrical energy to light energy

• Electrical energy to mechanical energy

• Mechanical energy to light energy

• Heat energy to sound energy

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What happens when two objects with the same or like static charges are near each other?

• They explode

• They attract each other

• They repel each other

• It has no effect on the objects

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Which of the following is a complete circuit that would light the bulb?

• A

• B

• C

• D

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Noah is making an electrical circuit with a light bulb. He needs a rod to complete the circuit. Which of these could be used to complete the circuit and make the light bulb light up?

• a glass rod

• a copper rod

• a rubber rod

• a wooden rod

Rosa spilled some salt on the table. Next she rubbed a balloon on her brother’s head. Then she held the balloon near the salt. The salt moved toward the balloon. What made this happen?

• The electrical charge in the balloon attracts the salt.

• The electrical charge in the balloon repels the salt and lifts it up.

• The magnetism in the balloon attracts the salt.

• The magnetism in the balloon repels the salt.

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Ryland was watching television. He observed that the TV was changing electrical energy into what other forms of energy?

• light, heat, magnetism

• sound, electrical, magnetism

• motion, heat, light

• light, heat, sound

Match the following terms to their definitions:

• Conductor

• a material that stops or slows the flow of electricity

• Insulator

• a material through which electricity can flow easily

• Static

• a form of electricity in which electric charges build up or collect on a surface

A Conductor is...

• a material through which electricity can flow easily

• a form of electricity in which electric charges build up or collect on a surface

• a material that stops or slows the flow of electricity

• the flow of electric current through a looped path of conductors

• a device that converts electrical energy into mechanical energy