Energy and Circuits

Front

What is an electric circuit?

Back

An electric circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and a load (like a light bulb).

Front

What are the two main types of energy used in an electric circuit?

Back

Electrical energy and thermal energy.

Front

What happens when a circuit is open?

Back

When a circuit is open, the flow of electric current is interrupted, and devices in the circuit (like bulbs) do not work.

Front

What is a switch in an electric circuit?

Back

A switch is a device that can open or close a circuit, controlling the flow of electricity.

Front

What is the role of a battery in a circuit?

Back

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

Front

What is a conductor?

Back

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

Front

What is a load in an electric circuit?

Back

A load is any device that uses electrical energy to perform work, such as a light bulb or a motor.

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, components are connected one after another, so the same current flows through all. In a parallel circuit, components are connected across the same voltage source, allowing multiple paths for current.

Front

What is resistance in an electric circuit?

Back

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

Front

What is the function of a light bulb in a circuit?

Back

A light bulb converts electrical energy into light energy and heat when current flows through it.