Electromagnetic Spectrum

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is the frequency of infrared waves?

Back

The frequency of infrared waves is approximately 10^12 Hz.

Front

How are high frequency waves related to wavelength?

Back

High frequency waves have short wavelengths.

Front

List the forms of electromagnetic energy from longest to shortest wavelength.

Back

Microwave -> Infrared -> Visible light.

Front

What type of telescope is used to observe X-ray wavelengths?

Back

An X-ray telescope is used to observe wavelengths around 3 x 10^-10 m.

Front

What type of telescope is used to observe radio waves?

Back

A radio telescope is used to observe wavelengths around 3 x 10^3 m.

Front

What is the wavelength range of visible light?

Back

The wavelength range of visible light is approximately 400 nm to 700 nm.

Front

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

Back

As the wavelength decreases, the energy of the electromagnetic wave increases.

Front

What are gamma rays?

Back

Gamma rays are a form of electromagnetic radiation with the shortest wavelength and highest energy.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 3 x 10^8 meters per second.