Quizs: Electricity & magnetism review

What will happen to the two objects of positive and negative as they are moved toward each other?

• push away

• pull toward

Light from the headlights of the car ________.

• travel in a circle

• travel in a straight line

• travel in a rainbow

• travel and beep

Energy is changed from one form to another during an energy

transformation. Which of the following is an example of a transformation of

electrical energy into another kind of energy?

• a motor making noise

• a heater feeling warm

• a light bulb lighting up

• All of these

How does a switch change a circuit?

• The switch keeps the wires from getting hot.

• An open switch completes a circuit.

• A switch stops and starts the flow of electricity.

What will happen to the two objects with "like poles"

as they are moved toward each other?

• push away

• pull together

Which type of energy needs a circuit to flow through?

• electrical

• sound

• heat

• light

Which of the following could best be classified as an insulator?

• basketball

• wire

• paper clip

• metal cap

What is the primary reason for using rubber as a coating on electrical wires?

• Rubber acts as an insulator to prevent electric shocks.

• Rubber is flexible and durable.

• Rubber is a good conductor of electricity.

Light and heat are two forms of ___.

• matter

• energy

• motion

• solids

Which best describes why electrical wires are made of metal?

• Metal wires can be shaped into a circle.

• Metal wires are the safer than cardboard.

• Electricity moves well through metal.