Details Title: Conceptual Physics- Nashoba Description: Chapter. 8 Notes Total Flash Cards: 17 Created: 02/04/2008 15:54:44		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Physics Flashcards
Cards in this set: Term Work Definition forces times distance Term impulse Definition force times time Term Joules Definition unit of measure for work; Newton times meter Term Power Definition Work/ time Term Watt Definition unit used to measure power; joule per second Term Energy Definition what enables things to do work Term Mechanical Energy Definition Energy used with help from machines Term Gravitational potentional energy Definition mgh, weight times height Term Kinetic energy Definition 1/2 mass times speed squared Term Force times distance Definition 1/2 mv squared Term Law of conservation Definition energy cannot be lost Term machine Definition device used to multiply forces or simply to change the direction of forces Term lever Definition work done on one end is transferred to work on the load on the other side of the fulcrum Term fulcrum Definition pivot point Term mechanical advantage Definition ratio of output force to input force Term pulley Definition a kind of lever that can be used to change the direction of a force Term efficiency Definition useful work output/ total work input