Energy and Engineering Review

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical loop that allows electricity to flow and power devices.

Front

What happens in an open circuit?

Back

In an open circuit, the electrical path is broken, preventing electricity from flowing.

Front

What is the primary purpose of an electric kettle?

Back

To heat water.

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What is an energy source?

Back

An energy source is something that provides energy, such as batteries, power plants, or solar panels.

Front

What is the role of a switch in a circuit?

Back

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

Front

What happens when you cut a wire in a circuit?

Back

Cutting a wire breaks the circuit, stopping the flow of electricity.

Front

What is an LED?

Back

An LED (Light Emitting Diode) is a semiconductor device that emits light when an electric current passes through it.

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, components are connected one after another, while in a parallel circuit, components are connected across common points.

Front

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

Back

A light bulb converts electrical energy into light energy.