Details

Title: Conceptual Physics- Nashoba

Description: Chapter. 8 Notes

Total Flash Cards: 17

Created: 02/04/2008 15:54:44

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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