Waves

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through the vacuum of space and consist of oscillating electric and magnetic fields. They include radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

Front

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

Back

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

Front

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

Back

Gamma rays.

Front

Which type of electromagnetic waves have the longest wavelength and the lowest frequency?

Back

Radio waves.

Front

What is a transverse wave?

Back

A transverse wave is a wave in which the oscillation is perpendicular to the direction of the wave's travel.

Front

What is a longitudinal wave?

Back

A longitudinal wave is a wave in which the oscillation is parallel to the direction of the wave's travel.

Front

What type of wave does sound travel in?

Back

Sound travels in longitudinal/compressional waves.

Front

What is a wavelength?

Back

Wavelength is the distance between two consecutive points of the same phase in a wave, such as crest to crest or trough to trough.

Front

What is amplitude in a wave?

Back

Amplitude is the maximum extent of a wave's oscillation, measured from the rest position to the crest or trough.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 300,000 kilometers per second).