Watts to joules calculator
[DOC File]Work and Power
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WORK = _____ N.m = _____ Joules. The rate at which energy is transformed or the rate at which work is done is called POWER (P) and is defined as work per unit time, P = W/t. The unit is a Joule per second and is also called Watt (Though originally power was defined in HORSE POWER and units like ft. lb/sec).
[DOCX File]TeachEngineering
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Power is measured in watts, which are joules per second. What, in a 100-watt light bulb is happening at 100 J/sec? Energy is input into the lamp at a rate of 100 J/sec.
[DOCX File]Horsepower Lab.docx
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· W=Fd (Work = Force x distance) *units measured in Joules · P= W/t (Power = Work / time) *units measured in Watts. Conversions: · 2.2 lbs = 1kg · 0.3048 meters = 1 foot · 1 hp = 550 ft/lbs · 1 hp = 746 watts. Procedure: 1. Use the formulas, conversions and data chart to help you calculate the horsepower of a student walking and then ...
[DOC File]Physical Science Formula Sheet
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Work = Force x distance 37 J (Joules) P = W / t Power = Work / time 60 w (watts) PE = mgh Potential Energy = mass x acceleration due to gravity x height 45 J KE = ½ m x v2. Kinetic Energy = ½ mass x velocity squared. 100 J. Work = (KE Work = change in kinetic energy J = J
[DOC File]Work, Power and Energy Worksheet
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19. A car uses 2,500 Joules in 25 seconds. Find power. 20. A 60. watt light bulb runs for 5.0 seconds. How much energy does it use? 21. How much work can a 22 kW car engine do in 60. s if it is 100% efficient? 22. A force of 5.0 N moves a 6.0 kg object along a rough floor at a constant speed of 2.5 m/s. (a) How much work is done in 25 s?
[DOCX File]Target Sheet: - Sarah Smith
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I understand the relationship between watts and joules. I know how to investigate energy transfer and the efficiency of energy transfer in a range of contexts; the interpretation, analysis and evaluation of data and methods used in investigations.
[DOC File]Calculating Work and Power by Climbing Stairs
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Climbing Stairs Slowly Rapidly Work done (Joules) Was the work done by climbing the stairs slowly the same as or different from climbing the stairs rapidly? Does you answer surprise you? Part IV. Calculate the power output of climbing the stairs slowly and rapidly in watts. Record your answers in the appropriate spaces below.
[DOC File]Steve Boddeker's Energy and Society Ch 1 Homework
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10 joules. 49 joules. 98 joules. cannot be determined because we do not know the velocity. Per person, the energy consumption in the United States is about 3.3×108 Btu/yr. This is equivalent to a power of. 11.0 W. 11.0 W. 11.0 MW. 11.0 kW. 110 kW. 1.10 kW. 11.0 QW. 0.11 kW
[DOC File]Activity 1.2.5 Mechanical System Efficiency ATV
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Determine the output power of the system for each test. Your final answer will be in watts. Formula Substitute / Solve Final Answer (0.0) 0J/180 0W 168000J/360 466.66W 264000J/720 366.66W To calculate power of an electrical system, multiply the current and voltage. Substitute and solve to discover how many watts were put into your system.
[DOC File]Stair-Climbing Power Lab
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If work is in joules (J) and time is in seconds (s), power is expressed in joules/second, or the simplification watt (W). James Watt was a British scientist who invented the steam engine. To find out how the power of his engine compared to that of a horse, Watt measured how fast an average horse could do work. He found the answer and expressed ...
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