# Kinetic energy

Jump to navigation
Jump to search

In terms, **kinetic energy** (TR:140) (LH:15) (**TL**:155) refers the energy associated with a body in motion, defined by ½ the product of its mass and velocity squared.

## Overview

In 1862, William Thomson and Peter Tait, in their “Energy”, building of Thomas Young's 1807 term "energy", referring to a body with velocity, and William Rankine's 1853 term "actual energy", introduced the term “kinetic energy”, as follows:

- “We are led to measure the ‘kinetic energy’ by the square of the velocity with which a body moves.”
- — William Thomson (1862), “Energy” (co-author: Peter Tait) (pg. 602)
^{[1]}

- — William Thomson (1862), “Energy” (co-author: Peter Tait) (pg. 602)

In c.1864, kinetic energy, with the additive ½ factor, came to be defined as:

In 1865, kinetic energy and potential energy became subsumed into Rudolf Clausius' "internal energy" formulation of the first law of thermodynamics.

## Quotes

The following are quotes:

- “The name kinetic energy, which I subsequently gave as seeming preferable to ‘actual energy’, has been generally adopted; but Rankine’s name ‘potential energy’ remains to this day, and is universally used to designate energy of the static kind.”
- — William Thomson (1882), “On the Mechanical Values of Distributions of Electricity, Magnetism, and Galvanism”
^{[2]}

- — William Thomson (1882), “On the Mechanical Values of Distributions of Electricity, Magnetism, and Galvanism”

## End matter

### See also

### References

- ↑ (a) Thomson, William; Tait, Peter. (1862). “Energy”, Good Words (“kinetic energy”, 5+ pgs). Publisher.

(b) Smith, Crosbie; Wise, M. Norton. (1989).*Energy and Empire: A Biographical Study of Lord Kelvin*(pg. 378). Cambridge. - ↑ Thomson, William. (1882). “On the Mechanical Values of Distributions of Electricity, Magnetism, and Galvanism”, Jul 18; in:
*Mathematical and Physical Papers, Volume One*(pg. 523). Glasgow.

### External links

- Kinetic energy – Hmolpedia 2020.