Light Vocabulary Review (U3, L1-4)

Front

What is the distance from the resting point to the crest or trough of a wave?

Back

Amplitude

Front

What type of light has longer wavelengths than visible light and is not visible to the human eye?

Back

Infrared

Front

What is the term for the range of wavelengths or frequencies over which electromagnetic radiation extends?

Back

Electromagnetic spectrum

Front

What type of wave has vibrations of the medium that are parallel to the direction the wave travels?

Back

Longitudinal wave

Front

What are the wavelengths on the electromagnetic spectrum that most humans can see?

Back

Visible light

Front

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

Back

Crest

Front

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

Back

Trough

Front

What is the difference between a transverse wave and a longitudinal wave?

Back

In a transverse wave, the medium's vibrations are perpendicular to the direction of the wave, while in a longitudinal wave, they are parallel.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (or about 186,282 miles per second).

Front

What is the relationship between wavelength and frequency in electromagnetic waves?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.