electromagnetic 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

Which electromagnetic waves have the highest frequencies?

Back

Gamma rays have the highest frequencies and the shortest wavelengths in the electromagnetic spectrum.

Front

What is the wavelength of ultraviolet light?

Back

Ultraviolet light has a wavelength of approximately 10^-8 meters.

Front

What type of electromagnetic wave has a wavelength of 10^3 meters?

Back

Radio waves have a wavelength of approximately 10^3 meters.

Front

Which electromagnetic waves have frequencies higher than visible light?

Back

X-rays have frequencies higher than visible light.

Front

List the electromagnetic waves in order of increasing wavelength.

Back

The order is: Gamma rays, X-rays, Ultraviolet rays, Visible light, Infrared rays, Microwaves, Radio waves.

Front

What is the speed of electromagnetic waves in a vacuum?

Back

The speed of electromagnetic waves in a vacuum is approximately 299,792 kilometers per second (or about 300,000 km/s).

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

What are microwaves used for?

Back

Microwaves are used for cooking food, in communication technologies, and in radar.

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye, with wavelengths ranging from approximately 400 to 700 nanometers.