Light Vocabulary

Front

What are electromagnetic (EM) waves?

Back

EM waves are waves that can travel through a medium or a vacuum.

Front

What is the peak of a wave called?

Back

The peak of a wave is called a crest.

Front

What do EM waves have in common?

Back

EM waves have the same speed but different wavelengths and frequencies.

Front

Which color of light has the least amount of energy?

Back

Red light has the least amount of energy.

Front

What color do the colors of the rainbow combine to form?

Back

The colors of the rainbow combine to form white light.

Front

What is the term for the lowest point of a wave?

Back

The lowest point of a wave is called a trough.

Front

What is amplitude in relation to waves?

Back

Amplitude is the height of a wave from its rest position to its crest.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive crests or troughs in a wave.

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as one increases, the other decreases.

Front

What is visible light?

Back

Visible light is the part of the electromagnetic spectrum that can be seen by the human eye.