Chapter 4 Flashcards
A unit used to measure energy and work alone calorie is equal to 4.18 joules of work is done when a force of one Newton moves an object one meter.
Joule
Scored energy; 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 the point where it moves fastest.
Kinetic energy
A combination of the kinetic energy and potential energy an object has
Mechanical energy
a principle stating that energy cannot be created or destroyed, but can be altered from one form to another.
Convervation 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 75 W light bulb converts electrical energy into heat and light at a rate of 75 joules per second.
Watt
The unit measurement of power for engines and motors. One horsepower equals 745 watts
Horsepower
The use of force to move an object over distance
Work
