Electric Circuits Review

Front

What happens when a plastic spoon replaces a paper clip in a circuit?

Back

The bulb does not light.

Front

Which part of the bulb gives off light?

Back

The filament (part 2).

Front

What energy transformation occurs in a hair dryer?

Back

Electrical to mechanical and thermal.

Front

What change is needed for both a bell and a bulb to function in a circuit?

Back

Add another wire to the negative terminal of the battery.

Front

What happens if wires 2 & 6 are removed from a circuit?

Back

None of the bulbs would light because wire 6 is necessary.

Front

What is an electric circuit?

Back

A closed loop that allows electric current to flow.

Front

What is the role of a battery in a circuit?

Back

It provides the electrical energy needed to power the circuit.

Front

What is a conductor?

Back

A material that allows electricity to flow through it easily.

Front

What is an insulator?

Back

A material that does not allow electricity to flow through it easily.

Front

What is a switch in an electric circuit?

Back

A device that can open or close the circuit, controlling the flow of electricity.