# Physics

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1. Power =
• work done
• Time interval
2. Mechanical energy
the energy due to the position of something or the movement of something
3. potential energy
the energy that is stored and held in reading it
4. gravitational potential energy =
weight X height ( PE = mgh)
5. kinetic energy =
1/2 mass X speed squared
6. kinetic energy
depends on the mass of the object as well as its speed
7. Net force X distance =
kinetic energy
8. Work =
Change (KE)
9. work-energy theorem
work equip change in kinetic energy
10. work
the effort exerted on something that will change its energy
11. work =
force X distance
12. conservation of energy
energy cannot be created or destroyed it may be transformed from 1 form into another but the total amount of energy never changes
13. Efficiency =
• useful energy output
• Total energy input
 Author: Anonymous ID: 198195 Card Set: Physics Updated: 2013-02-05 23:17:23 Tags: Conceptual physics equations definitions intro Folders: Description: Physics cards Show Answers: