The cycle per second was a once-common English name for the unit of frequency now known as the hertz (Hz). The plural form was typically used, often written cycles per second, cycles/second, c.p.s., c/s, or, ambiguously, just cycles (Cy./Cyc.). The term comes from the fact that sound waves have a frequency measurable in their number of oscillations, or cycles, per second. With the organization of the International System of Units in 1960, the cycle per second was officially replaced by the hertz, or reciprocal second, "s−1" or "1/s". Symbolically, "cycle per second" units are "cycle/second", while hertz is "Hz" or "s−1". For higher frequencies, kilocycles (kc), as an abbreviation of kilocycles per second were often used on components or devices. Other higher units like megacycle (Mc) and less commonly kilomegacycle (kMc) were used before 1960and in some later documents. These have modern equivalents such as kilohertz (kHz), megahertz (MHz), and gigahertz (GHz). Following the introduction of the SI standard, use of these terms began to fall off in favor of the new unit, with hertz becoming the dominant convention in both academic and colloquial speech by the 1970s. The rate at which aperiodic or stochastic events occur may be expressed in becquerels (as in the case of radioactive decay), not hertz, since although the two are mathematically similar, by convention hertz implies regularity where becquerels implies the requirement of a time averaging operation. Thus, one becquerel is one event per second on average, whereas one hertz is one event per second on a regular cycle. Cycle can also be a unit for measuring usage of reciprocating machines, especially presses, in which cases cycle refers to one complete revolution of the mechanism being measured (i.e. the shaft of a reciprocating engine). Derived units include cycles per day (cpd) and cycles per year (cpy). (Wikipedia).
The way how to show time using clocks. It is 12 hours video you can use as a screensaver on clock, every number changing is completely random. Please enjoy.
From playlist Timers
Ex: Determine How Far Ahead a Car Passing Another Car Is Ahead After 5 Minutes
This video explains how to determine how far ahead a car will be 5 minutes after passing another car. http://mathispower4u.com
From playlist Mathematics General Interest
What is a second: from fizzics.org
The second is the International base unit of time but how is it defined? Here is an explanation.
From playlist Units of measurement
Convert Hours and Days to Seconds using Unit Fractions
This video explains how to use unit fraction to convert units of time. http://mathispower4u.com
From playlist Unit Conversions: American or Standard Units
This videos explains how to convert from one unit of time to another. It also shows how to add and subtract different units of time. Complete Video List: http://www.mathispower4u.yolasite.com
From playlist Unit Conversions: Converting Between Standard and Metric Units
Why Are There 60 Minutes In An Hour Instead Of 100?
Do clocks really follow a system inherited from ancient Sumeria? Share on Facebook: http://goo.gl/s2L82t Share on Twitter: http://goo.gl/lRZqhu Subscribe: http://goo.gl/ZYI7Gt Visit our site: http://www.brainstuffshow.com
From playlist Popular Stuff
Example 1: Determine Unit Rate (MPH)
This video provides an example of how to determine a unit rate in miles per hour. Complete Video List at http://www.mathispower4u.com
From playlist Ratios and Rates
Physics 13.3.3a - The Kilowatt hour
The kilowatt-hour, a unit for energy. Where the unit comes from and how it is used. From the Physics course by Derek Owens
From playlist Physics - Electric Circuits
Heat Engines, Thermal Efficiency, & Energy Flow Diagrams - Thermodynamics & Physics Problems
This physics video tutorial provides a basic introduction into heat engines. it explains how to calculate the mechanical work performed by a heat engine using heat flowing from the hot reservoir and the heat energy flowing into the cold reservoir. It explains how to calculate the thermal
From playlist New Physics Video Playlist
Amplitude, period, frequency and wavelength of periodic waves | Physics | Khan Academy
Amplitude, period, frequency and wavelength of periodic waves. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/sound-topic/v/production-of-sound?utm_source=YT&utm_medium=Desc&utm_campaign=physics Missed the previous lesso
From playlist Oscillations and mechanical waves | Physics | Khan Academy
Example 2: Solve a Problem using Distance = Rate x Time
This video provides an example of determining time given the distance and rate. Complete Video List at http://www.mathispower4u.yolasite.com or http://www.mathispower4u.wordpress.com
From playlist Whole Number Applications
Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/science/electrical-engineering/ee-circuit-analysis-topic/ee-ac-analysis/v/ee-sine-cosine-from-rotating-vector If we introduce time as the argument to the sine function, we get a sine wave.
From playlist Electrical engineering
Join Mr. H as he explains what is meant when saying that "an object is undergoing periodic motion". The meaning of period, amplitude and frequency are described. Numerous representations are used to convey a conceptual understanding of an object that vibrates about a fixed position in a re
From playlist Vibrations and Waves
Carnot Heat Engines, Efficiency, Refrigerators, Pumps, Entropy, Thermodynamics - Second Law, Physics
This physics tutorial video shows you how to solve problems associated with heat engines, carnot engines, efficiency, work, heat, refrigerators, heat pumps and entropy. It discusses the concepts of the first and second law of thermodynamics. This video contains plenty of examples and pra
From playlist New Physics Video Playlist
Frequency vs. Period in Simple Harmonic Motion(SHM)
Frequency, f, is defined and related to Period, T. Two demonstrations are shown and frequency solved for. Want Lecture Notes? http://www.flippingphysics.com/frequency.html This is an AP Physics 1/JEE/NEET topic. 0:00 Intro 0:13 Definition of period, T 1:00 Definition of frequency, f 1:40
From playlist SHM: Simple Harmonic Motion - A Level Physics
CDIS 4017 - Terminology Part 2 (DONE)
Chaya Guntupalli (Nanjundeswaran) Ph.D. CDIS 4017 - Speech and Hearing Science I ETSU Online Programs - http://www.etsu.edu/online
From playlist ETSU: CDIS 4017 - Speech and Hearing Science I | CosmoLearning Audiology
Connecting period and frequency to angular velocity | AP Physics 1 | Khan Academy
Definition of period and frequency for an object moving in a circle. Connecting period and frequency to the magnitude of the angular velocity. View more lessons or practice this subject at http://www.khanacademy.org/science/ap-physics-1/ap-centripetal-force-and-gravitation/introduction-to
From playlist Uniform circular motion and gravitation | AP Physics 1 | Khan Academy
Frequency and Period of a Wave
The Frequency and Period of a Wave Tutorial explains the meaning of the concepts of frequency and period and applies them to wave motion. The formulas for calculating frequency and period are presented and two example calculations are performed. You can find more information that support
From playlist Vibrations and Waves
Ex: Convert Mile Per Hour to Feet Per Second
This video provides an example of how to convert miles per hour to feet per second. Complete Video Library: www.mathispower4u.com
From playlist Unit Conversions: American or Standard Units
Doppler effect formula when source is moving away | Physics | Khan Academy
Let's look at the case where the source is moving away from the listener. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/doppler-effect/v/when-the-source-and-the-wave-move-at-the-same-velocity?utm_source=YT&utm_medium=Des
From playlist Oscillations and mechanical waves | Physics | Khan Academy