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The amount of work you get from an engine divided by the energy you put into it?
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∙ 12y ago
Efficiency
Wiki User
∙ 12y ago
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How much energy it takes to perform a specific amount of work?
The question becomes impossibly complex if we take "work" to mean human effort. But if we simply interpret "work" in the formal sense of Physics, then "energy" and "a specific amount of work" are essentially synonymous, and therefore equal.
What does effiecienty mean in science?
Efficiency=Useful energy output divided by the energy input. i.e. 100 J is the energy input and you get 5 J light energy from a lamp, the waste energy would be 5 J.
The amount of useable energy decreases when?
The quality of energy decreases when you use it due to the second law of thermodynamics. Essentially, the energy spent from various reactions is processed, which reduces the amount of work needed to extract it.
Which forms of energy can do work?
The forms of energy that do work is kinetic energy.
What does the power of a machine tell you?
How fast work happens or how quickly energy is transferred.
How many units of work are needed to generate 600 units of power in 10 seconds?
Power is energy divided by time. Solving for energy, energy is power multiplied by time. Work is closely related to energy - work is the amount of energy transferred.
How does the amount of work done on an automobile by its engine relate to the energy content of the gasoline?
Energy conversion is the changing of one form of energy into another or into work, such as that in the combustion process.
The amount of work done by heat engine equals the amount of what?
the amout of work done on the engine
How is the efficiency of a compound machine calculated?
The efficiency of a machine is found by dividing the amount of work done by a machine by the amount of energy used by a machine. The answer is then multiplied by 100 to give a percentage.
Amount of work divided by time?
power
Is power equal to work divided by time?
Average power equals Work divided by time. P= W/t
What is stroke in automobile?
In an engine, it a work that helps to finish one cycle..... It can be also said like a step to release the energy and it also releases energy. For every action some amount of energy released.......
Formula for power?
power= energy time the time in seconds power= energy time the time in seconds
Why does energy have the ability to do work?
Energy does not have the ability to do work, but we use energy to do work. Work is the application of force over a distance. The amount of energy changes how much work can be done, but energy technically does not do any work.
Why arn't work and energy the same?
Work and energy use the same units; but the term "work" is used in the sense of "transfer of energy" (amount of energy transferred).
What is a measure of how much work can be done in a certain amount of time?
Power = rate at which Work is done (Work or Energy divided by Time) Units often used for this include: Watt (joules/sec) Horsepower Foot-pounds/minute
Why does work have the same unit as energy?
because work is a transformation of energy. If there is some loss of energy in a process then same amount of work will be created. For this reason the unit of work and energy is same.
