Unit 2 Science

Front

What is the electromagnetic (EM) spectrum?

Back

The EM spectrum is the range of all types of electromagnetic radiation, which includes visible light, radio waves, X-rays, and more. It can be dangerous or helpful depending on its use.

Front

What are the two main types of waves?

Back

Transverse and longitudinal waves.

Front

What is a longitudinal wave?

Back

A wave in which the displacement of particles is in the same direction as the wave movement, characterized by compressions and rarefactions.

Front

What is a transverse wave?

Back

A wave in which the displacement of particles is perpendicular to the direction of wave movement, characterized by crests and troughs.

Front

What is a vacuum?

Back

A vacuum is a space devoid of matter, where sound cannot travel.

Front

What is wavelength?

Back

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

Front

What is compression in a wave?

Back

Compression is the region in a longitudinal wave where particles are closest together.

Front

What is rarefaction in a wave?

Back

Rarefaction is the region in a longitudinal wave where particles are spread apart.

Front

How does sound travel?

Back

Sound travels through mediums such as air, water, or solids, but cannot travel through a vacuum.

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.