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 type of waves are microwaves?

Back

Microwaves are a type of electromagnetic radiation with frequencies ranging from about 1 GHz to 300 GHz, and wavelengths from 1 mm to 30 cm.

Front

Which color of visible light has the longest wavelength?

Back

Red has the longest wavelength in the visible light spectrum.

Front

What is the order of the visible light spectrum from longest to shortest wavelength?

Back

Red, orange, yellow, green, blue, indigo, violet.

Front

What type of electromagnetic waves have the lowest energy?

Back

Radio waves have the lowest energy in the electromagnetic spectrum.

Front

What type of telescope is used to observe X-rays?

Back

An X-ray telescope is used to observe celestial objects emitting X-rays.

Front

What is the frequency of a wave?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is the relationship between wavelength and frequency?

Back

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

Front

What type of radiation is emitted by quasars?

Back

Quasars can emit various types of electromagnetic radiation, including radio waves, visible light, and X-rays.

Front

What is the wavelength of visible light?

Back

Visible light has wavelengths ranging from approximately 400 nm (violet) to 700 nm (red).