Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through the vacuum of space and do not require a medium. They are made up of oscillating electric and magnetic fields.

Front

How does energy travel to the Earth?

Back

Energy travels to the Earth through electromagnetic waves.

Front

What is wavelength?

Back

Wavelength is the measure of the distance between two consecutive peaks or troughs of a wave.

Front

True or False: Wavelength is the measure of the distance between two electromagnetic waves.

Back

True

Front

What is rarefaction in a longitudinal wave?

Back

Rarefaction is the less dense, more spread out region of a longitudinal wave.

Front

What type of waves are used in broadcasting?

Back

Radio waves are used in broadcasting.

Front

What is the trough of a wave?

Back

The trough is the lowest part of a wave.

Front

What is the crest of a wave?

Back

The crest is the highest part of a wave.

Front

What is amplitude in a wave?

Back

Amplitude is the maximum distance that the wave moves away from its rest position.

Front

What are the different types of electromagnetic waves?

Back

The different types of electromagnetic waves include radio waves, microwaves, infrared rays, visible light, ultraviolet rays, x-rays, and gamma rays.