Kekekalan energi
lam ilmu fisika, hukum kekekalan energi menyatakan bahwa jumlah energi dari sebuah sistem tertutup itu tidak berubah—ia akan tetap sama.[1][2] Energi tersebut tidak dapat diciptakan maupun dimusnahkan ; namun ia dapat berubah dari satu bentuk energi ke bentuk energi lain. Contohnya, energi kimia dapat diubah menjadi energi kinetik dalam ledakan dinamit.
Hukum Kekekalan Energi (Hukum I Termodinamika) berbunyi:
Energi dapat berubah dari satu bentuk ke bentuk yang lain tetapi tidak bisa diciptakan atau dimusnahkan (konversi energi).
Referensi
- ^ Robert A. Pelcovits; Joshua Farkus (2008). Barron's AP Physics C: Advanced Placement Examination. Barron's Educational Series. hlm. 174. ISBN 978-0-7641-3710-5.
- ^ Feynman, Richard (1970). Feynman lectures on physics. Boston, MA: Addison Wesley Longman. ISBN 978-0-201-02115-8.
Daftar pustaka
Sumber modern
- Goldstein, Martin, and Inge F., (1993). The Refrigerator and the Universe. Harvard Univ. Press. A gentle introduction.
- Kroemer, Herbert; Kittel, Charles (1980). Thermal Physics (2nd ed.). W. H. Freeman Company. ISBN 978-0-7167-1088-2.
- Nolan, Peter J. (1996). Fundamentals of College Physics, 2nd ed. William C. Brown Publishers.
- Oxtoby & Nachtrieb (1996). Principles of Modern Chemistry, 3rd ed. Saunders College Publishing.
- Papineau, D. (2002). Thinking about Consciousness. Oxford: Oxford University Press.
- Serway, Raymond A.; Jewett, John W. (2004). Physics for Scientists and Engineers (6th ed.). Brooks/Cole. ISBN 978-0-534-40842-8.
- Stenger, Victor J. (2000). Timeless Reality. Prometheus Books. Especially chpt. 12. Nontechnical.
- Tipler, Paul (2004). Physics for Scientists and Engineers: Mechanics, Oscillations and Waves, Thermodynamics (5th ed.). W. H. Freeman. ISBN 978-0-7167-0809-4.
- Lanczos, Cornelius (1970). The Variational Principles of Mechanics. Toronto: University of Toronto Press. ISBN 978-0-8020-1743-7.
Sumber lampau
- Brown, T.M. (1965). "Resource letter EEC-1 on the evolution of energy concepts from Galileo to Helmholtz". American Journal of Physics. 33 (10): 759–765. Bibcode:1965AmJPh..33..759B. doi:10.1119/1.1970980.
- Cardwell, D.S.L. (1971). From Watt to Clausius: The Rise of Thermodynamics in the Early Industrial Age. London: Heinemann. ISBN 978-0-435-54150-7.
- Guillen, M. (1999). Five Equations That Changed the World. New York: Abacus. ISBN 978-0-349-11064-6.
- Hiebert, E.N. (1981). Historical Roots of the Principle of Conservation of Energy. Madison, Wis.: Ayer Co Pub. ISBN 978-0-405-13880-5.
- Kuhn, T.S. (1957) "Energy conservation as an example of simultaneous discovery", in M. Clagett (ed.) Critical Problems in the History of Science pp.321–56
- Sarton, G.; Joule, J. P.; Carnot, Sadi (1929). "The discovery of the law of conservation of energy". Isis. 13: 18–49. doi:10.1086/346430.
- Smith, C. (1998). The Science of Energy: Cultural History of Energy Physics in Victorian Britain. London: Heinemann. ISBN 978-0-485-11431-7.
- Mach, E. (1872). History and Root of the Principles of the Conservation of Energy. Open Court Pub. Co., Illinois.
- Poincaré, H. (1905). Science and Hypothesis. Walter Scott Publishing Co. Ltd; Dover reprint, 1952. ISBN 978-0-486-60221-9., Chapter 8, "Energy and Thermo-dynamics"