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Work equals the change in energy, in a closed system energy is not lost. So in a closed system any work done will be countered by an equal and opposite work. An example is throwing a ball up into the air and catching it again. The work done by you to accelerate it is equal and opposite to the work done by the earth.
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∙ 11y ago
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What was James Joule famous for?
James Joule was a physicist who studied heat and is credited with the discovery of how heat related to mechanical work. His discoveries and studies led to the law of conservation of energy.
Is energy the same thing as work?
Not exactly, but they are closely related. Both have the same units, but "work" specifically refers to a TRANSFER of mechanical energy. When "work is done", mechanical energy is transferred from one object to another.
How work is related to powerand energy?
Power is the rate at which work is done. That isPower = Work/Time.Work done is also the change in the total mechanical energy of a system between its initial and final state.Work = Final Energy - Initial Energy
When a machince is used to perform a task work output is always what than work input?
Work output is always less than work input. This is related to the Law of Conservation of Energy.
Human work converts what energy to mechanical energy?
the answer is chemical energy
How are potential and kinetic energy related to mechanical energy?
they both do work
What was James Joule famous for?
James Joule was a physicist who studied heat and is credited with the discovery of how heat related to mechanical work. His discoveries and studies led to the law of conservation of energy.
Is energy the same thing as work?
Not exactly, but they are closely related. Both have the same units, but "work" specifically refers to a TRANSFER of mechanical energy. When "work is done", mechanical energy is transferred from one object to another.
How work and enery related?
I am not sure whether it is the official definition, but I like to think of work as a transfer of mechanical energy.
How do microphones and speakers work?
mechanical energy-electrical energy-mechanical energy
Mechanical energy to energy?
Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work.
Why do machines require some extra work that is not useful because of friction?
Friction converts mechanical energy into heat, which is rarely useful, and which can never be recovered in its entirety. Due to conservation of energy, this heat energy is not available for other things, i.e., for useful work.
How work is related to powerand energy?
Power is the rate at which work is done. That isPower = Work/Time.Work done is also the change in the total mechanical energy of a system between its initial and final state.Work = Final Energy - Initial Energy
When a machince is used to perform a task work output is always what than work input?
Work output is always less than work input. This is related to the Law of Conservation of Energy.
What is the detinition for mechanical energy?
energy acquird by the objects upon which work is done is known as mechanical energy Mechanical energy is found by adding kinetic energy and potential energy.
What is the relationship between work input and work output with reference to the law of conservation of energy?
Work output is less than or equal to the work input. This is the law of conservation of energy.
Human work converts what energy to mechanical energy?
the answer is chemical energy
