4th grade Energy Science Test

Front

What is a circuit?

Back

A circuit is a closed loop that allows electricity to flow from a power source to a device and back.

Front

What is a conductor?

Back

A conductor is a material that allows electricity to flow through it easily, such as metals like copper and aluminum.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily, such as rubber or plastic.

Front

What role does a battery play in a circuit?

Back

A battery provides the electrical energy needed to power the circuit.

Front

What happens when a circuit is open?

Back

When a circuit is open, electricity cannot flow, and the devices in the circuit will not work.

Front

What happens when a circuit is closed?

Back

When a circuit is closed, electricity can flow, and the devices in the circuit will operate.

Front

What is the purpose of a switch in a circuit?

Back

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

Front

What materials can be used to complete a circuit?

Back

Materials like metal wires, metal nails, and batteries can be used to complete a circuit.

Front

What is the effect of using a conductor in a circuit?

Back

Using a conductor in a circuit allows electricity to flow, enabling the circuit to function.

Front

What is the effect of using an insulator in a circuit?

Back

Using an insulator in a circuit prevents electricity from flowing, which can stop the circuit from working.