Hz
Wave rate unit
Hz is the abbreviation for hertz, the unit of frequency equal to one cycle per second.
It measures how often something repeats—sound waves, electromagnetic signals, processor speeds: The human ear detects frequencies from about 20 Hz to 20,000 Hz.
Kilohertz (kHz), megahertz (MHz), and gigahertz (GHz) denote thousands, millions, and billions of cycles per second.
Thousand-cycle frequency unit
- megahertzOne million oscillations per second
- gigahertzFrequency unit, billions
- terahertzTrillion hertz unit
- cycles per secondUnit of frequency measurement
SI unit · bandwidth · spectrum · oscillation · resonance · periodicity · quantify · calibration
Repeated back-and-forth movement
- tremorInvoluntary rhythmic shaking
- flutterRapid light movement
- pulsationRhythmic expansion and contraction
- resonanceAmplified oscillation at natural frequency
vibrato · frequency response · damping · harmonics · mechanical · seismic · ultrasonic · piezoelectric
Repeated back-and-forth movement
- wavelengthSpatial repetition interval
- amplitudeMaximum oscillation displacement
- electromagneticInvolving electric and magnetic fields
- radio waveElectromagnetic broadcast frequency
microwave · infrared · visible light · ultraviolet · gamma ray · propagation · interference · diffraction
Message-conveying cue
- processorComponent that executes instructions
- clock speedProcessor cycle rate
- refresh rateScreen update speed measurement
- sample rateCaptures per time unit
bandwidth · radio · transmission · carrier wave · modulation · oscillator · crystal · circuit
Frequency of sound
- toneQuality of sound
- acousticsStudy of sound transmission
- bassDeep pitch or fish
- trebleHigh frequency range
fundamental · harmonic · overtone · tuning · middle C · ultrasound · infrasound · sonic
kilohertz
Thousand-cycle frequency unit
- megahertzOne million oscillations per second
- gigahertzFrequency unit, billions
- terahertzTrillion hertz unit
cycles per second · SI unit · bandwidth · spectrum · oscillation · resonance · periodicity · quantify · calibration · meter
oscillation
Repeated back-and-forth movement
- tremorInvoluntary rhythmic shaking
- flutterRapid light movement
- pulsationRhythmic expansion and contraction
resonance · vibrato · frequency response · damping · harmonics · mechanical · seismic · ultrasonic · piezoelectric · tuning fork
oscillation
Repeated back-and-forth movement
- wavelengthSpatial repetition interval
- amplitudeMaximum oscillation displacement
- electromagneticInvolving electric and magnetic fields
radio wave · microwave · infrared · visible light · ultraviolet · gamma ray · propagation · interference · diffraction · spectrum
signal
Message-conveying cue
- processorComponent that executes instructions
- clock speedProcessor cycle rate
- refresh rateScreen update speed measurement
sample rate · bandwidth · radio · transmission · carrier wave · modulation · oscillator · crystal · circuit · CPU
pitch
Frequency of sound
treble · fundamental · harmonic · overtone · tuning · middle C · ultrasound · infrasound · sonic · audio
- abbreviationsMr, Mrs, Ms, Dr, Jr
- rotationrotation, spin, axis of rotation, rotational motion, angular momentum
- frequencyfrequency, kilohertz, megahertz, gigahertz, MHz
- music abbreviationsDJ, CD, LP, EP, MP3
- radio frequenciesradio wave, radio waves, radio frequency, FM, AM
- audio frequencieskilohertz, frequency band, frequency range, hearing range, high frequency