Question

SI unit of energy is
(a) Newton
(b) Joule
(c) Kilogram
(d) Watt
​

Answer 1

Answer:

joule.................

Answer 2

1. Newton: The joule (symbol J) is the SI unit of energy—a measure of the capacity to do work or generate heat. One joule equals the work done (or energy expended) by a force of one newton (N) acting over a distance of one meter (m).

2. joule:Joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. Named in honour of the English physicist James Prescott Joule, it equals 107 ergs, or approximately 0.7377 foot-pounds.

3.kilogram: The joule (J) is the SI unit of energy and equals (kg×m2s2) ( kg × m 2 s 2 ) .

4. watt: The watt (symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer. In SI base units, the watt is described as kg m2 s-3, which can be demonstrated to be coherent by dimensional analysis..

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