Sound and Electrical Energy Review

Front

What is sound caused by?

Back

Sound is caused by vibrations.

Front

What is the main source of current (power) in a circuit?

Back

The main source of current in a circuit is a battery.

Front

Which object would best complete a circuit?

Back

A battery.

Front

Why is it necessary for the metal parts of the wires to touch the metal parts of the battery and receiver/load?

Back

Because the metal is a conductor and allows the electricity to flow easily through.

Front

What matter does sound travel the fastest in?

Back

Sound travels the fastest in solids.

Front

What is a conductor?

Back

A conductor is a material that allows electricity to flow through it easily.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily.

Front

What is a circuit?

Back

A circuit is a closed path through which electricity flows.

Front

What is the role of a switch in a circuit?

Back

A switch is used to open or close a circuit, controlling the flow of electricity.

Front

What happens when a circuit is open?

Back

When a circuit is open, electricity cannot flow.