GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The unit of work is the ____
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joule
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force
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The SI unit for energy is the joule (J): 1 J=1 newton metre (N m). Another unit is the calorie (cal), which is defined as the heat required to raise the temperature of 1 g of pure water by 1°C at 1 atm pressure.
Detailed explanation-2: -The S.I. unit of energy is joule (J) while the CGS unit of energy is erg. The kinetic energy and potential energy are just forms of energy and share the same units as energy. Therefore, the given statement that SI unit of work and energy is joule is true.
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