Question

what is energy and also its si unit​

Answer 1

Answer:

Because energy is defined via work, the SI unit for energy is the same as the unit of work – the joule (J), named in honor of James Prescott Joule and his experiments on the mechanical equivalent of heat. In slightly more fundamental terms, 1 joule is equal to 1 newton metre and, in terms of SI base units.

Answer 2

ANSWER ✌️

In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.

Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The SI unit of energy is the joule, which is the energy transferred to an object by the work of moving it a distance of 1 metre against a force of 1 newton.

The Sun is the source of energy for most of life on Earth.

Common symbols

SI unit

=> joule

Other units

=> kW⋅h, BTU, calorie, eV, erg, foot-pound

In SI base units

=>J = kg m2 s−2

Extensive?

=>yes

Conserved?

=>yes

Dimension

=>M L2 T−2