Circuits

Front

What is a circuit?

Back

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

Front

What do you need to light a bulb in a circuit?

Back

You need a battery that has energy.

Front

What happens when you close a switch in a circuit?

Back

Closing a switch allows electric current to flow, producing light, sound, or other forms of energy.

Front

In a parallel circuit, what remains the same throughout the circuit?

Back

Voltage remains the same throughout a parallel circuit.

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.

Front

What is the unit of electric current?

Back

The unit of electric current is the ampere (amps).

Front

What is a battery?

Back

A battery is a device that stores chemical energy and converts it to electrical energy.

Front

What is the role of a switch in a circuit?

Back

A switch controls the flow of current in a circuit by opening or closing the circuit.

Front

What is the formula for calculating total resistance in a series circuit?

Back

Total resistance in a series circuit is the sum of all individual resistances: R_total = R1 + R2 + R3 + ...

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, components are connected end-to-end, while in a parallel circuit, components are connected across common points.