Electromagnetic Spectrum
Science

A method of transmitting information by changing the amplitude of a wave
Amplitude modulation
A method of transmitting information by changing the amplitude of a wave. Amplitude modulation is a technique used in radio broadcasting where the strength amplitude of a radio wave is varied to encode sound information.

A wave of electric and magnetic energy that can travel through matter or a vacuum, like X-rays
Electromagnetic wave
A wave of electric and magnetic energy that can travel through matter or a vacuum, like X-rays. Electromagnetic waves are invisible waves, like light or radio waves, that carry energy through space.

A method of transmitting information by changing the frequency of a wave
Frequency modulation
A method of transmitting information by changing the frequency of a wave. Frequency modulation. Frequency modulation is a way to send signals by varying the frequency of a carrier wave based on the information being sent.

Electromagnetic wave of the shortest wavelength and highest frequency
Gamma ray
Electromagnetic wave of the shortest wavelength and highest frequency gamma ray. Gamma rays are incredibly powerful bursts of energy that come from the nuclei of atoms and are used in medical treatments and scientific research.

An electromagnetic wave with shorter wavelength but higher frequency than visible light
Ultraviolet wave
An electromagnetic wave with shorter wavelength but higher frequency than visible light. Ultraviolet wave. Ultraviolet waves are invisible rays from the sun that can cause sunburn and are used in sterilization.

A high-energy electromagnetic wave, it has shorter wavelength but higher frequency than UV
X-ray
A high-energy electromagnetic wave, it has shorter wavelength but higher frequency than UV. X-ray. X-rays are a type of radiation that can pass through most objects, including the body, and are commonly used to create images of bones and internal organs.