SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The unit or label for work is
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netwons
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joules
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meters
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seconds
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Explanation:
Detailed explanation-1: -The SI unit of work is joule (J). Joule is defined as the work done by a force of one newton causing a displacement of one meter. Sometimes, newton-metre (N-m) is also used for measuring work.
Detailed explanation-2: -1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter. 1 Watt is the power from a current of 1 Ampere flowing through 1 Volt.
Detailed explanation-3: -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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