Other Free Encyclopedias » Science Encyclopedia » Science & Philosophy: Electrophoresis (cataphoresis) to Ephemeral

Energy - Potential And Kinetic Energy, Conservation Of Energy, Forms Of Energy, Electrical Energy, Magnetic Energy

iron move filings distance

Energy is a state function commonly defined as the capacity to do work. Since work is defined as the movement of an object through a distance, energy can also be described as the ability to move an object through a distance. As an example, imagine that a bar magnet is placed next to a pile of iron filings (thin slivers of iron metal). The iron filings begin to move toward the iron bar because magnetic energy pulls on the iron filings and causes them to move.

Energy can be a difficult concept to understand. Unlike matter, energy can not be taken hold of or placed on a laboratory bench for study. We know the nature and characteristics of energy best because of the effect it has on objects around it, as in the case of the bar magnet and iron filings mentioned above.

Energy is described in many forms, including mechanical, heat, electrical, magnetic, sound, chemical, and nuclear. Although these forms appear to be very different from each other, they often have much in common and can generally be transformed into one another.

Over time, a number of different units have been used to measure energy. In the British system, for example, the fundamental unit of energy is the foot-pound. One foot-pound is the amount of energy that can move a weight of one pound a distance of one foot. In the metric system, the fundamental unit of energy is the joule (abbreviation: J), named after the English scientist James Prescott Joule (1818-1889). A joule is the amount of energy that can move a weight of one newton a distance of one meter.


User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or

Vote down Vote up

over 1 year ago

Thanks for More information provide Top 3th Packers and Movers services
http://3th.co.in/packers-and-movers-delhi/
http://3th.co.in/packers-and-movers-noida/
http://3th.co.in/packers-and-movers-faridabad/
http://3th.co.in/packers-and-movers-ghaziabad/

Vote down Vote up

over 1 year ago

Thanks for More information provide Export5th in packing & moving services at best shifting
http://www.export5th.in/packers-and-movers-in-bangalore/
http://www.export5th.in/packers-and-movers-in-hyderabad/
http://www.export5th.in/packers-and-movers-in-pune/
http://www.export5th.in/packers-and-movers-in-mumbai/

Vote down Vote up

about 2 years ago

Crystal X Mengatasi Keputihan
http://www.crystalxmengatasikeputihan.com
Keunggulan Produk Herbal Crystal X
http://www.crystalxmengatasikeputihan.com/2015/04/keunggulan-dari-crystal-x.html
Crystal X
http://distributor-resmi-nasa.blogspot.com/2013/05/manfaat-dan-bahaya-crystal-x.html
CRYSTAL X UNTUK PROGRAM HAMIL
http://www.crystalxmengatasikeputihan.com/2015/04/crystal-x-untuk-program-hamil-istri.html
Produk Terapi Untuk Suami Agar Istri Cepat Hamil
http://www.crystalxmengatasikeputihan.com/2015/04/produk-terapi-untuk-suami-agar-istri-cepat-hamil.html
Cara Pemesanan Produk Crytal X
http://www.crystalxmengatasikeputihan.com/p/blog-page.html
Cara Pemakaian Crystal X untuk Hasil Memuaskan
http://www.crystalxmengatasikeputihan.com/2015/04/cara-pemakaian-crystal-x-untuk-hasil.html
Crystal X Benar-Benar Aman
http://www.crystalxmengatasikeputihan.com/2015/04/apakah-crystal-x-benar-benar-aman_22.html
Khasiat Crystal X Merawat Organ Intim
http://www.crystalxmengatasikeputihan.com/2015/04/khasiat-crystal-x-merawat-organ-intim.html
Mengatasi Keputihan Dengan Crystal X
http://www.crystalxmengatasikeputihan.com/2015/04/mengatasi-keputihan-dengan-crystal-x.html
Peranan Crystal X Sebagai Pembunuh Bakteri Jahat
http://www.crystalxmengatasikeputihan.com/2015/04/peranan-crystal-x-sebagai-pembunuh.html
Fungsi Crystal X Untuk Memperlancar Menstruasi
http://www.crystalxmengatasikeputihan.com/2015/04/fungsi-crystal-x-untuk-memperlancar.html
Efek Samping Penggunaan Crystal X
http://www.crystalxmengatasikeputihan.com/2015/04/efek-samping-penggunaan-crystal-x.html
Mengatasi Keputihan Dengan Crystal X
http://www.crystalxmengatasikeputihan.com/2015/04/mengatasi-keputihan-dengan-crystal-x.html
Cara Mengatasi Keputihan Tanpa Efek Samping
http://www.crystalxmengatasikeputihan.com/2015/05/cara-mengatasi-keputihan-tanpa-efek.html

Vote down Vote up

over 2 years ago

YOURE DUMB PEOPLE