electromagnetic waves
Photons in motion
Electromagnetic waves are oscillating electric and magnetic fields that propagate through space, carrying energy without requiring a medium.
They travel at the speed of light and include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays—distinguished by wavelength and frequency.
Electromagnetic waves from the sun warm the Earth.
Electromagnetic waves for cooking
- infraredHeat-bearing electromagnetic waves
- visible lightRadiation the eye detects
- ultravioletWavelengths shorter than violet
- X-raysShort-wavelength penetrating light
gamma rays · wavelength · frequency · prism · dispersion · rainbow · redshift · blueshift
Rate of recurrence
- wavelengthSpatial repetition interval
- amplitudeMaximum oscillation displacement
- polarizationSeparation into opposing extremes
- interferenceUnwelcome involvement in affairs
diffraction · refraction · propagation · photon · oscillation · waveform · sine wave · Maxwell
Transmitted media signal
- transmissionSending of information
- signalMessage-conveying cue
- antennaBroadcast signal receiver
- modulationVarying signals to transmit
transmitter · receiver · radio · television · satellite · cellular · Wi-Fi · Bluetooth
Wireless network standard
- BluetoothShort-range wireless protocol
- NFCClose-proximity communication protocol
- cellularComposed of small units
- hotspotArea of notable activity
router · RFID · cordless · remote control · airwaves · radiofrequency · broadband · wireless charging
Short-wavelength penetrating light
- radiotherapyMedical radiation for cancer
- MRIMagnetic body imaging
- CT scanTomographic diagnostic imaging
- radiographyDiagnostic imaging using X-rays
oncology · dosimetry · imaging · diagnosis · mammography · fluoroscopy · radiation therapy · nuclear medicine
microwaves
Electromagnetic waves for cooking
- infraredHeat-bearing electromagnetic waves
- visible lightRadiation the eye detects
- ultravioletWavelengths shorter than violet
X-rays · gamma rays · wavelength · frequency · prism · dispersion · rainbow · redshift · blueshift · absorption
frequency
Rate of recurrence
- wavelengthSpatial repetition interval
- amplitudeMaximum oscillation displacement
- polarizationSeparation into opposing extremes
interference · diffraction · refraction · propagation · photon · oscillation · waveform · sine wave · Maxwell · Hertz
broadcast
Transmitted media signal
- transmissionSending of information
- signalMessage-conveying cue
- antennaBroadcast signal receiver
modulation · transmitter · receiver · radio · television · satellite · cellular · Wi-Fi · Bluetooth · 5G
Wi-Fi
Wireless network standard
- BluetoothShort-range wireless protocol
- NFCClose-proximity communication protocol
- cellularComposed of small units
hotspot · router · RFID · cordless · remote control · airwaves · radiofrequency · broadband · wireless charging · mobile network
X-rays
Short-wavelength penetrating light
- radiotherapyMedical radiation for cancer
- MRIMagnetic body imaging
- CT scanTomographic diagnostic imaging
radiography · oncology · dosimetry · imaging · diagnosis · mammography · fluoroscopy · radiation therapy · nuclear medicine · ultrasonography
- electricityelectricity, battery, batteries, wire, wires
- light spectrumvisible spectrum, spectrum, sunlight, visible light, white light
- waveswave crest, shock wave, wave front, blast wave, seismic wave
- Electricity HistoryMichael Faraday, Faraday, Benjamin Franklin, Franklin, Thomas Edison
- electromagnetismelectricity, magnetism, magnets, electromagnets, electromagnet
- Energy phenomenaelectricity, magnetism, radiation, thermal energy, kinetic energy
electromagnetic wavessound waves
Pressure disturbances carrying noise
seismic waves · pressure waves · ocean waves · surface waves · shock waves
electromagnetic wavesparticles
Minute pieces of matter
matter · corpuscles · mass · direct current · gravitational fields
waves, magnetic, electro, electromagnetism, electromagnetic, electrostatic, electrodynamic, electrokinetic, electromagnetic wave