Released STAAR Questions 5.6B Circuits and Electricity

Front

What is a circuit?

Back

A circuit is a closed path through which electric current flows.

Front

What happens when a switch in a circuit is closed?

Back

When a switch is closed, it completes the circuit, allowing electricity to flow and power devices like light bulbs.

Front

What is a fuse in an electric circuit?

Back

A fuse is a safety device that protects the circuit by breaking the connection if the current is too high.

Front

What occurs if a fuse burns out?

Back

If a fuse burns out, the circuit is broken, and devices powered by that circuit will not work.

Front

What is the effect of a burned-out lightbulb in a series circuit?

Back

In a series circuit, if one lightbulb burns out, the entire circuit is broken, and all bulbs will go out.

Front

What is the effect of a burned-out lightbulb in a parallel circuit?

Back

In a parallel circuit, if one lightbulb burns out, the other bulbs can still light up.

Front

What type of energy do electric fans produce?

Back

Electric fans produce mechanical energy and also generate heat as electric current passes through the circuit.

Front

What is electric current?

Back

Electric current is the flow of electric charge, typically measured in amperes.

Front

What is the role of a switch in a circuit?

Back

A switch controls the flow of electricity in a circuit by opening (breaking) or closing (completing) the circuit.

Front

What happens to light bulbs in a circuit when the switch is open?

Back

When the switch is open, the circuit is incomplete, and no electricity flows, so the light bulbs do not light up.