Heat, light, and sound

Front

What is heat energy?

Back

Heat energy is the energy that comes from the temperature of matter. It is the energy that causes the particles in an object to move.

Front

What is light energy?

Back

Light energy is a form of energy that travels in waves and can be seen by the human eye. It is produced by sources like the sun, light bulbs, and fire.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating objects. It travels in waves through air, water, or solids.

Front

How does electricity create sound in headphones?

Back

Electricity flows through the headphones, causing a small speaker to vibrate, which creates sound waves that we can hear.

Front

What is the role of an electromagnet in a speaker?

Back

An electromagnet in a speaker creates vibrations that produce sound when electricity flows through it.

Front

What happens when a battery in headphones dies?

Back

When the battery dies, it can no longer provide electricity, so the headphones cannot create sound waves.

Front

What types of energy does a heat lamp produce?

Back

A heat lamp produces both heat energy and light energy.

Front

What is the filament in a light bulb?

Back

The filament is a thin wire inside a light bulb that glows and produces light when electricity passes through it.

Front

What is the difference between kinetic energy and sound energy?

Back

Kinetic energy is the energy of moving objects, while sound energy is the energy produced by vibrating objects.

Front

What is an example of light energy?

Back

An example of light energy is sunlight, which provides light and warmth to the Earth.