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| The work required to lift ] (e.g. a small apple) for one metre under the earth's gravity is 1 joule. | The work required to lift ] (e.g. a small apple) for one metre under the earth's gravity is 1 joule. | ||
| 1 joule is equal to: | |||
| * 0.000,000,278 ]s | |||
| * 0.239 ]s | |||
| * 0.000,948 ]s | |||
| * 0.738 foot pounds force | |||
| * 1 Ws (] ]) | |||
| * 1 Nm (] ]) | |||
| * 23.7 foot poundals | |||
| * 10,000,000 ]s | |||
| See ] for comparisons. | See ] for further comparisons. | ||
| See also: ], ], ], ] | See also: ], ], ], ] | ||
Revision as of 19:01, 20 August 2003
The joule (J) is the SI unit of energy and work, and is defined as 1 kg m s = 1 N m = 1 W s. It is named in honour of the physicist James Prescott Joule.
The work required to lift 102 g (e.g. a small apple) for one metre under the earth's gravity is 1 joule.
1 joule is equal to:
- 0.000,000,278 Kilowatt-hours
- 0.239 calories
- 0.000,948 British thermal units
- 0.738 foot pounds force
- 1 Ws (Watt second)
- 1 Nm (Newton metre)
- 23.7 foot poundals
- 10,000,000 ergs
See 1 E0 J for further comparisons.
See also: conversion of units, eV, kWh, TWh