physics hertz definition
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- The hertz (symbol Hz) is the unit of frequency in the International System of Units (SI) and is defined as one cycle per second. It is named for Heinrich Rudolf Hertz, the first person to provide conclusive proof of the existence of electromagnetic waves.ach musical note corresponds to a particular frequency which can be measured in hertz. An infant's ear is able to perceive frequencies ranging from 20 Hz to 20,000 Hz; the average adult human can hear sounds between 20 Hz and 16,000 Hz.
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megahertz (MHz) The megahertz, abbreviated MHz, is a unit of alternating current (AC) or electromagnetic (EM) wave frequency equal to one million hertz (1,000,000 Hz). The megahertz is commonly used to express microprocessor clock speed.
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- 1 An example of a hertz is a unit of measurement such as the clock rate of a computer CPU. 2  An example of a hertz is a sixty hertz household current.
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What is MHz? Hertz can be used in the singular or the plural. It is the common unit of measurement for frequency, counting the number of cycles completed in one second. In fact, before the implementation of the term hertz, the measurement was actually called “cycles per second” (cps) and MHz were called megacycles..
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- What is attohertz? An attohertz (aHz) is a SI-multiple (see prefix atto) of the frequency unit hertz and equal to 1.0 × 10-18 hertz.read more...». An angle, in geometry, is defined by two rays a and b sharing a common starting point S, called the vertex. These rays can be transformed into each other by a revolution or rotation.
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Kilohertz Kilohertz. A kHz, or Kilohertz, is a measurement of frequency equal to 1,000 hertz. Kilohertz is unit of measurement for alternating current, audio signals, and a measurement of wireless signals. With circuits an oscillator circuit supplies a small amount of electricity to a crystal each second that is measured in KHz, MHz, or GHz. Hz is an abbreviation of Hertz, and K represents Kilo (thousand), M represents Mega (million), and G represents Giga (thousand million).
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hertz hertz (Hz), A unit of measure of frequency equivalent to 1 cycle/sec; this term should not be used for radial (circular) frequency or for angular velocity, in which cases the term sec -1 should be used. [H.R. Hertz ]. (Hz) (herts) the SI unit of frequency, equal to one cycle per second.
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Frequency Frequency, in physics, the number of waves that pass a fixed point in unit time; also, the number of cycles or vibrations undergone during one unit of time by a body in periodic motion.
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Kilohertz to Hertz Conversion 400000 Hertz (Hz) Kilohertz : The kilohertz is a decimal multiple unit of the SI derived unit of frequency hertz which is equal to 103 Hz. The symbol for gigahertz is kHz. Hertz : The hertz is the unit of frequency in SI units equivalent to cycles per second. It is defined as the number of cycles per second of a periodic phenomenon. It is most commonly used to describe of the sine wave, particularly those used in radio and audio applications , such as the frequency of musical tones.
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Megahertz One megahertz (abbreviated: MHz) is equal to 1,000 kilohertz, or 1,000,000 hertz. It can also be described as one million cycles per second. Megahertz is used to measure wave frequencies, as well as the speed of microprocessors. Radio waves, which are used for both radio and TV broadcasts, are typically measured in megahertz.
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Frequency The SI unit of frequency is the hertz (Hz), named after the German physicist Heinrich Hertz; one hertz means that an event repeats once per second. A previous name for this unit was cycles per second (cps). The SI unit for period is the second.
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Hertz The hertz (symbol Hz) is the unit of frequency in the International System of Units (SI) and is defined as one cycle per second. It is named for Heinrich Rudolf Hertz, the first person to provide conclusive proof of the existence of electromagnetic waves.ne hertz simply means one cycle per second  (typically that which is being counted is a complete cycle); 100 Hz means one hundred cycles per second, and so on. The unit may be applied to any periodic event—for example, a clock might be said to tick at 1 Hz, or a human heart might be said to beat at 1.2 Hz.
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Hertz The time between each flash – the period T – is given by 1⁄f (the reciprocal of f ‍), i.e. 2, 1 and 0.5 seconds, respectively. The hertz (symbol Hz) is the unit of frequency in the International System of Units (SI) and is defined as one cycle per second.It is named for Heinrich Rudolf Hertz, the first person to provide conclusive proof of the existence of electromagnetic waves.n English, hertz is also used as the plural form. As an SI unit, Hz can be prefixed; commonly used multiples are kHz (kilohertz, 10 3 Hz), MHz (megahertz, 10 6 Hz), GHz (gigahertz, 10 9 Hz) and THz (terahertz, 10 12 Hz).
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- Named after Heinrich Hertz and abbreviated as Hz or illustrated as the f symbol, hertz equals one (0.00000000125) cycle per second, measuring the waves or frequencies of electric changes each second. Hertz is commonly used to measure a computer monitor's refresh rate and in computer processors.
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- Frequency. The frequency of a wave is the number of waves produced by a source each second. It is also the number of waves that pass a certain point each second.The unit of frequency is the hertz (Hz). It is common for kilohertz (kHz), megahertz (MHz) and gigahertz (GHz) to be used when waves have very high frequencies.requency. The frequency of a wave is the number of waves produced by a source each second. It is also the number of waves that pass a certain point each second.
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- SecurActive Performance Vision. The terahertz, abbreviated THz, is a unit of electromagnetic (EM) wave frequency equal to one trillion hertz (10 12 Hz). The terahertz is used as an indicator of the frequency of infrared (IR), visible, and ultraviolet (UV) radiation.Download this Pocket Guide to Network Management and Monitoring.he terahertz is not commonly used in computer and wireless technology, although it is possible that a microprocessor with a clock speed of 1 THz might someday be developed.
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Hertz In English, hertz is also used as the plural form. As an SI unit, Hz can be prefixed; commonly used multiples are kHz (kilohertz, 10 3 Hz), MHz (megahertz, 10 6 Hz), GHz (gigahertz, 10 9 Hz) and THz (terahertz, 10 12 Hz).ne hertz simply means one cycle per second  (typically that which is being counted is a complete cycle); 100 Hz means one hundred cycles per second, and so on. The unit may be applied to any periodic event—for example, a clock might be said to tick at 1 Hz, or a human heart might be said to beat at 1.2 Hz.
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- The frequency of a wave is the number of waves produced by a source each second. It is also the number of waves that pass a certain point each second. The unit of frequency is the hertz (Hz). It is common for kilohertz (kHz), megahertz (MHz) and gigahertz (GHz) to be used when waves have very high frequencies.
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hertz hertz. n. pl. hertz Abbr. Hz. A unit of frequency equal to one cycle per second. See Table at measurement.
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What does Hertz mean? Hertz is the SI unit for frequency. Frequency is defined as the number of cycles per second. The word cycles refers to a stated number of fully-completed wave transitions of: * a physical sound wave traveling through a solid (like wood or bone or metal), a fluid (like water), a gas (like air), etc. or.
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terahertz (THz) The terahertz, abbreviated THz, is a unit of electromagnetic (EM) wave frequency equal to one trillion hertz (10-to-the-12th power Hz). The terahertz is used as an indicator of the frequency of inf...
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Acoustics First Â® Glossary of Acoustic Terms An acoustic guitar or violin body is a Helmholtz resonator. Hertz - The measuring unit of frequency or the speed of vibration of a sound wave. Synonymous with “cycles per second” (CPS).
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Hertz 1000 hertz is 1 kilohertz. 1000 kilohertz is 1 megahertz, 1000 megahertz is 1 gigahertz: (see table) The frequency of the Earth's spinning (once per ~24 hours) is about 12 microhertz (much smaller than 1 Hz). The hertz is sometimes used to measure the power of a processor in computing and electronics.
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- Planck's constant in Medicine Expand. Planck's constant (plängks) n. Symbol h The constant of proportionality relating the energy of a photon to the frequency of that photon. Its value is approximately 6.626 × 10-34 joule-second.
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Frequency Definition in Science By Anne Marie Helmenstine, Ph.D. Definition: Frequency is the number of times a point on a wave passes a fixed reference point in one second. The SI unit for frequency is the Hertz (Hz). Also Known As: cycles per second.
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Definitions of Terms for RF and EF Electromagnetic Fields Table of Electromagnetic Radiation Frequencies by Type of Source The terahertz, abbreviated THz, is a unit of electromagnetic (EM) wave frequency equal to one trillion hertz (10-to-the-12th power Hz). The terahertz is used as an indicator of the frequency of infrared (IR), visible, and ultraviolet (UV) radiation.