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 relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as the frequency of a wave increases, its wavelength decreases.

Front

What type of electromagnetic radiation has the highest frequency?

Back

Gamma rays have the highest frequency in the electromagnetic spectrum.

Front

What type of electromagnetic radiation has the longest wavelength?

Back

Radio waves have the longest wavelength in the electromagnetic spectrum.

Front

What is visible light?

Back

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

Front

What are X-rays used for?

Back

X-rays are used in medical imaging to view the inside of the body, as they can penetrate soft tissues but are absorbed by denser materials like bones.

Front

What is infrared radiation?

Back

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

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 the significance of the wavelength of electromagnetic waves?

Back

The wavelength of electromagnetic waves determines their energy and frequency; shorter wavelengths correspond to higher energy and frequency.

Front

What are ultraviolet rays?

Back

Ultraviolet rays are a type of electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays, known for their ability to cause sunburn.