Motion And Forces Flashcards
A unit used to measure energy and work. One calorie is equal to 4.18 joules of energy; one joule of work is done when a force of one Newton moves an object one meter.
Joule
The energy an object has due to its position,molecular arrangement, or chemical composition.
Potential energy
The energy of motion.A moving object has the most kinetic energy at point where it moves the fastest.
Kinetic energy
A combination of the kinetic energy and potential energy an object has.
Mechanical energy
A law stating that no matter how energy is fransferred or transformed, all of the energy is still present in one form or another.
Law of conservation of energy
The rate at which work is done.
Power
The unit of measurement for power,which is equal to one joule of work done or energy transferred in one second. For example, a 75W light bulb converts electrical energy into heat and light at a rate of 75 joules per second.
Watt
The unit of measurement of power for engines and motors. One horse equals 745 watts.
Horsepower
The use of force to move an object over a distance.
Work
