Question

What is energy? What is work?

Answer 1

The simplest defination of energy is ' the ability to do work '

Work - Work can be defined as transfer of energy

Answer 2

Question 1 :— What is energy?

Answer :— In physics, energy is the quantitative property that must be transferred to a body or physical system to perform work on the body, or to heat it. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.

• Other units: kW⋅h, BTU, calorie, eV, erg, foot-pound
• In SI base units: J = kg m² , s^-2
• SI unit: joule

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Question 2 :— What is work?

Answer :— In physics, work is the energy transferred to or from an object via the application of force along a displacement. In its simplest form, it is often represented as the product of force and displacement.

• In SI base units: 1 kg⋅m²s^-2
• SI unit: joule (J)
• Other units: Foot-pound, Erg