Is kWh a unit of work, energy, power, or more than one of these? Explain.?
110153
Kilowatt Hour. Measurement of electricity used in a specific ammount of time.
771080
joules is energy...im dumb
399796
It's the amount of energy exerted over a certain period of time.  Or how much energy you spend to achieve a certain task.
203926
Watt is a unit of power....ampere is a unit of current.\n\nPOWER = Current X Voltage
474968
The Watt is a unit of Power.\n\n(I'm pretty sure P does not equal vf though)\n\nEDIT - No you're right. I had to work it out for my own peace of mind though!\n\np=e/t\nw(e)=fd\np=fd/t\np=f(d/t)\np=fv
756742
kilo is the prefix meaning 1,000, thus one kilowatt would equal one thousand watts.... if this is for a class you will probably run into some more numerical prefixes so ill give u a few more...\n\nassuming the standard unit is 1:\ncenti-100th\nmilli-1000th\nmicro-1,000,000th\nnano1,000,000,000th
1183524
It's an Electrical unit of power... Think of water, voltage equals speed of flow, Amp equals the pressure behind it....  Very simple terms..
88686
You are usually billed by the electric company in terms of how much energy you use per month.  The unit for measuring this is given in kiloWatt-hours (kWh).\n1 kWh is defined as the amount of energy consumed by something drawing one kiloWatt of power consistantly for 1 hour, or something drawing 1 watt for 1000 hours (or any combination there of).\n\nSo, for example, say your computer opperated at a constant 200 watts for 12 hours a day for 30 days straight.\nDaily energy consumption = 200 watts * 12 hours = 2400 katt-hours.  For 30 days, that would equal 72000 Wh or 72 kWh.\nI dont know how much energy costs where you live, but for me it is roughtly 12 cents / kWh, so that would come to $8.64 per month.
38597
P= work/time and work is = to force x distance so its 500x4 =2000joules\nand 2000/4 =500 watts
346550
kingbodonti is correct...\n\nPower in watts = Work in joules / time in seconds\n\nPower = 1,000 joules/50 seconds\n\nPower = 20 watts ANSWER
316890
ok well work is force x distance. and work is just difference in energy so if you take initial energy to be 0, energy is equal to force x distance.\nnow 170 pounds is about 77.27kg and the force is 757.27N. the distance is 16 miles = 25.75km so the energy is 19499.397 J. now a Watt is 1J/s. so 1W * 1s = 1J. so 19499.397J = 19499.397W-s. = ~19.5kW-s. multiply this by 1h/3600s (which is 1 cuz theyre equivalent) and you get 0.005416666 kw-h. \n\nhope you understand that. let me know if you need more help
394789
1kcal (or big "C" calorie) is equal to 4.19kJ (4.19x10^3J).  They are not the same thing.  The calorie was a unit made up before energy was fully understood and is the amount of heat needed to raise the temperature of 1g of water by 1 degree celcius (from 14.5 to 15.5 degrees celcius), whereas the joule is the SI unit for energy.
181079
Work equals Force * Distance,\nW = F*d\n\nSo you could say that work was proportional to the force applied or to the distance over which the work was done.\n\nWork also equals a change in energy, whatever energy that may be...kinetic energy, potential energy, what-have-you.\n\nIf some power is being exerted, work would be proportional to the time the power was being applied,\nW = P*t
335846
Power Consumption is the rate at which you use power (watts).\nPower used in your home is measured in killo-Watt hours and is priced as $ per KW-hr used. \n\nSo at $.40 per kW-hr rate and you use 300 kW-hr in a month then your cost would be $.40 x 300 = $120\n\nnote: killo = 1000
657313
W/m*K = Watt/(meter*Kelvin)\n\nPower per unit length per unit temperature\n\nWhere power is defined as energy per unit time.
950109
In engineering practice we normally use kilowatt units for calculations. But horsepower is used for commercial terms and to categorize a motor. The conversion factor is 0.746 KW = 1 HP and 1KW  = 1.3405 HP
1030224
The answer in SI units is 1200 joules or 1.2 kilojoules. the definition of a joule is one watt second. in Calories, or English units, which shouldn't really be used with watts as it mixes systems of measurements, is 286.806883 calories or 0.286806883 kilo calories.