Chapter4 Flashcards
Joule
A unit to measure energy and work.
Potential energy
Stored energy ;the energy an object has due to its position, molecular arrangement, or chemical composition.
Kinetic energy
The energy of motion. A moving object has the most kinetic energy at the point where it moves the fastest.
Mechanical energy
A combination of the kinetic energy and potential energy an object has
Conservation of energy
A law stating that no matter how energy is transferred or transformed all of the energy is still present in one form or another
Power
The rate at which work is done
Watt
The unit of measurement for power,which is equal to one joule of work done or energy transferred in one second
Horsepower
The unit of measurement of power for engines and motors
Muchine
W
Mechanical advantage
W
Efficiency
W
Work
The use of force to move an object over a distance.
