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# Topic: Frequency

 frequency :: The Snowboarders Journal - Snowboard Snowboarding’s original coffee-table journal and true voice, frequency TSJ publishes four issues per year in limited editions. Covering snowboarding's global travel, landscapes, and personalities, frequency is snowboarding's true voice. Although Baker had been closed for a month and a half and temperatures were hitting 70 degrees in Bellingham this Sunday, I couldn’t get snowboarding off my mind. www.frqncy.com   (280 words)

 frequency - a definition from Whatis.com For an oscillating or varying current, frequency is the number of complete cycles per second in alternating current direction. The standard unit of frequency is the hertz, abbreviated Hz. Frequency is important in wireless communications, where the frequency of a signal is mathematically related to the wavelength. whatis.techtarget.com /definition/0,,sid9_gci212160,00.html   (254 words)

 Frequency - Wikipedia, the free encyclopedia Frequency is the measurement of the number of times that a repeated event occurs per unit of time. The frequency f is equal to the speed v of the wave divided by the wavelength λ (lambda) of the wave: In Europe, the frequency of the alternating current in mains is 50 Hz (close to the tone G), however, in North America, the frequency of the alternating current is 60 Hz (close to the tone B flat — that is, a minor third above the European frequency). en.wikipedia.org /wiki/Frequency   (504 words)

 Frequency modulation - Wikipedia, the free encyclopedia Frequency modulation (FM) is a form of modulation which represents information as variations in the instantaneous frequency of a carrier wave. Problematically, however, frequency drift or lack of selectivity may cause one station or signal to be suddenly overtaken by another on an adjacent channel. Note that frequency modulation can be regarded as a special case of phase modulation where the carrier phase modulation is the time integral of the FM modulating signal. en.wikipedia.org /wiki/Frequency_modulation   (1056 words)

 Waves   (Site not responding. Last check: ) Frequency is a measurement of how often a recurring event such as a wave occurs in a measured amount of time. The frequencies of standing waves or those that oscillate in place are the rate of oscillation in units of cycles per unit time. Although frequency is a measurement of rate of movement, it is not identical to velocity. earthguide.ucsd.edu /wav/frequency.html   (423 words)

 The Physics Classroom Frequency is the cycles/second; period is the seconds/cycle. Mathematically, the period is the reciprocal of the frequency and vice versa. As the frequency of a wave increases, the period of the wave ___________. www.physicsclassroom.com /Class/waves/U10L2b.html   (1143 words)

 Frequency Measuring the frequency of sound, electromagnetic waves (such as radio or light), electrical signals, or other waves, the frequency in hertz is the number of cycles of the repetitive waveform per second. The frequency f is equal to the speed v of the wave divided by the wavelength λ; (lambda) of the wave: The frequency of the standard pitch tone A above middle C is nowadays set at 440 Hz that is 440 cycles per second (or slightly higher) and known as concert pitch, after which an orchestra is tuned. www.mp3.fm /Frequency.htm   (359 words)

 FREQUENCY DISTRIBUTIONS Frequency distribution: A distribution showing the number of observations associated with each score value in a set of data that is quantitative in nature. A histogram is a pictorial representation of a frequency distribution in which the scores (X) are plotted on the X-axis of a graph and the frequency (or relative frequency) of occurrences is plotted on the Y-axis. A frequency polygon is a pictorial representation of a frequency distribution in which the scores (X) are plotted on the X-axis of the graph and the frequency (or relative frequency) of occurrences is plotted on the Y-axis. otel.uis.edu /yoder/freq_h.htm   (850 words)

 The Physics Classroom The frequency of a wave is measured as the number of complete back-and-forth vibrations of a particle of the medium per unit of time. And of course the frequency at which each particle vibrates is the same as the frequency of the original source of the sound wave. When two sounds with a frequency difference of greater than 7 Hz are played simultaneously, most people are capable of detecting the presence of a complex wave pattern resulting from the interference and superposition of the two sound waves. www.physicsclassroom.com /Class/sound/u11l2a.html   (1275 words)

 Frequency and Period of a Wave The quantity frequency is often confused with the quantity period. Frequency is the cycles/second; period is the seconds/cycle. As the frequency of a wave increases, the period of the wave ___________. www.glenbrook.k12.il.us /gbssci/phys/Class/waves/u10l2b.html   (1067 words)

 Time and Frequency from A to Z Since accuracy is related to the offset from an ideal value, frequency accuracy is usually stated in terms of the frequency offset. Frequency drift may be in either direction (higher or lower frequency) and is not necessarily linear. Frequency mixers are commonly employed in frequency measurement systems (as shown in the graphic below), to convert a high frequency to a low frequency, and to obtain more measurement resolution. tf.nist.gov /general/enc-f.htm   (985 words)

 NPC Library: Noise Control Terms Made Somewhat Easier Therefore, to describe a sound containing a wide range of frequencies in a manner representative of the ear's response, it is necessary to reduce the effects of the low and high frequencies with respect to the medium frequencies. A sinusoidal (pure-tone) component whose frequency is a whole-number multiple of the fundamental frequency of the wave. A frequency band whose cutoff frequencies have a ratio of 2 to the one-third power, which is approximately 1.26. www.nonoise.org /library/diction/soundict.htm   (3820 words)

 Frequency (film) - Wikipedia, the free encyclopedia Frequency is a 2000 movie directed by Gregory Hoblit and starring Jim Caviezel and Dennis Quaid. John Sullivan (Caviezel), having broken family tradition by becoming a New York City policeman, instead of a fireman — his father, Frank Sullivan (Quaid), died 30 years ago in a warehouse fire, shortly after Game 2 of the 1969 World Series — and going through personal turmoil, discovers his father's ham radio and begins transmitting. A major subplot of Frequency is the 1969 World Series between the New York Mets and the Baltimore Orioles. en.wikipedia.org /wiki/Frequency_(movie)   (472 words)

 fUSION Anomaly. Frequencies In wave motion of all kinds, the frequency is given as the number of wave crests passing a point in a second. Frequency is expressed in hertz (Hz); a frequency of 1 Hz equals 1 cycle or oscillation per second. Frequency Modulation (FM), system of radio transmission in which the carrier wave is modulated so that its frequency varies with the audio signal being transmitted. fusionanomaly.net /frequencies.html   (3014 words)

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