How does the law of conservation of energy apply to machines? A. Machines create energy from scratch. B. Machines consume energy until no energy remains. C. Energy transferred to a machine equals energy transferred from it. D. Engineers break the law of conservation of energy by using machines.
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The law of conservation of energy apply to machines because energy transferred to a machine equals energy transferred from it. (Option C)
• According,to the law of conservation of energy,the amount of energy in a closed system always stay constant.
• This is also applicable to the machines to some extent.
• Although,the energy input and work output are not same,the output is always less than the input.
• This reduced amount of energy is transformation into other energy forms like the heat energy.
• So,the amount of work output and other transformed energy is equal to the amount of energy inputs.
• In this way,the conservation of energy is fulfilled by the machines.
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