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 is a power source in a circuit?

Back

A power source provides the energy needed to move electric charges through the circuit, such as a battery or a generator.

Front

What happens when a lightbulb burns out 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 happens when a lightbulb burns out in a parallel circuit?

Back

In a parallel circuit, if one lightbulb burns out, the other bulbs can still light up because they have separate paths for the current.

Front

What is a fuse?

Back

A fuse is a safety device in a circuit that protects against overload by breaking the circuit if too much current flows.

Front

What is the role of a switch in a circuit?

Back

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

Front

What is the difference between an open circuit and a closed circuit?

Back

An open circuit has a break that prevents current from flowing, while a closed circuit allows current to flow continuously.

Front

What is electric current?

Back

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

Front

What is resistance in a circuit?

Back

Resistance is a measure of how much a material opposes the flow of electric current, measured in ohms (Ω).

Front

What is a conductor?

Back

A conductor is a material that allows electric current to flow easily, such as copper or aluminum.