Electromagnetic Spectrum

Front

What is the electromagnetic spectrum?

Back

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

Front

What is wavelength?

Back

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

Front

How does frequency relate to energy in electromagnetic waves?

Back

As the frequency of electromagnetic waves increases, the energy of the waves also increases.

Front

What are the main types of electromagnetic waves?

Back

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

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 186,282 miles per second).

Front

What is infrared radiation?

Back

Infrared radiation is a type of electromagnetic radiation with wavelengths longer than visible light but shorter than microwaves, often associated with heat.

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that can be detected by the human eye, typically ranging from wavelengths of about 400 to 700 nanometers.

Front

What are gamma rays?

Back

Gamma rays are high-energy electromagnetic waves with very short wavelengths, often produced by radioactive materials and certain astronomical phenomena.

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 is the role of the electromagnetic spectrum in astronomy?

Back

The electromagnetic spectrum is used in astronomy to observe celestial objects, identify their composition, and study their movement.