Circuits STAAR questions

Front

What is a complete circuit?

Back

A complete circuit is a closed loop that allows electric current to flow, enabling devices like lightbulbs to operate.

Front

What happens if a circuit is incomplete?

Back

If a circuit is incomplete, electric current cannot flow, and devices connected to the circuit will not work.

Front

What is the role of a battery in a circuit?

Back

A battery provides the electrical energy needed to push the electric current through the circuit.

Front

What is mechanical energy?

Back

Mechanical energy is the energy associated with the motion and position of an object.

Front

What is heat energy in the context of electric circuits?

Back

Heat energy is produced as a byproduct when electric current passes through a circuit, often due to resistance.

Front

What is the function of a switch in a circuit?

Back

A switch controls the flow of electric current by opening (turning off) or closing (turning on) the circuit.

Front

What happens when you close a switch in a circuit?

Back

Closing a switch completes the circuit, allowing electric current to flow and powering the connected devices.

Front

What is the purpose of wires in a circuit?

Back

Wires connect different components of a circuit, allowing electric current to travel between them.

Front

What is a lightbulb's function in a circuit?

Back

A lightbulb converts electrical energy into light energy when electric current flows through it.

Front

What is resistance in an electrical circuit?

Back

Resistance is a measure of how much a material opposes the flow of electric current, affecting how much current can flow.