How is energy defined in science?

Answer 1

Energy is the property of a substance or a system which enables it to do work. Energy and work have the same units, Joules in the SI system. When you do work you are using energy, and if the work stores energy, this energy is then available to do future work, this is called potential energy.

The simplest definition of energy or work is that 1 Joule is the work done by a force of 1 Newton acting over a distance of 1 meter. Thermal energy can be related to mechanical energy by the equivalent that 1 calorie = 4.2 Joules, this is called the mechanical equivalent of heat.

Answer 2

Energy in science is defined as the ability to do work or produce heat. It exists in different forms such as potential energy (stored energy) and kinetic energy (energy of motion). Energy can be converted from one form to another but cannot be created or destroyed according to the law of conservation of energy.

Answer 3

Energy is defined as the ability to do work. It can be converted but it can never be destroyed.

Answer 4

Energy is the power from sources such as electricity and coal that makes machines work or provides heat.

Answered By: Tom Angelo Mayuga

Answer 5

Energy is defined as the capacity to do work. The different types of energy are mechanical, thermal, chemical, electromagnetic and nuclear.

Answer 6

Energy is the capacity of matter to perform work.

Answer 7

Energy is the ability of matter to change or to perform work. It is measured in joules or foot-pounds.

Answer 8

ability for a body to do work

Answer 9

Energy is the capacity to do work.