Joule
(Reguidit frae Megajoule)
The joule (/ˈdʒuːl/ or whiles /ˈdʒaʊl/), seembol J, is a derived unit o energy, wirk, or amoont o heat in the Internaitional Seestem o Units.[1] It is equal tae the energy expendit (or wirk duin) in applyin a force o ane newton throu a distance o ane metre (1 newton metre or N·m), or in passin an electric current o ane ampere throu a resistance o ane ohm for ane seicont. It is named efter the Inglis pheesicist James Prescott Joule (1818–1889).[2][3][4]
| Joule | |
|---|---|
| Unit seestem | SI derived unit |
| Unit o | Energy |
| Seembol | J |
| Named efter | James Prescott Joule |
| Unit conversions | |
| 1 J in ... | ... is equal tae ... |
| SI base units | 1 kg·m2/s2 |
| CGS units | 1×107 erg |
| kilowatt hours | 2.78×10−7 kW⋅h |
| kilocalories | 2.39×10−4 kcal |
| BTUs | 9.48×10−4 BTU |
| electronvolts | 6.24×1018 eV |
References
eedit- ↑ International Bureau of Weights and Measures (2006), The International System of Units (SI) (PDF) (8th ed.), p. 120, ISBN 92-822-2213-6
- ↑ American Heritage Dictionary of the English Language Archived 2012-06-18 at the Wayback Machine, Online Edition (2009). Houghton Mifflin Co., hosted by Yahoo! Education Archived 2010-11-06 at the Wayback Machine.
- ↑ The American Heritage Dictionary, Second College Edition (1985). Boston: Houghton Mifflin Co., p. 691.
- ↑ McGraw-Hill Dictionary of Physics, Fifth Edition (1997). McGraw-Hill, Inc., p. 224.