Enerygy and Work Flashcards
A unit 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
Stored 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
Energy is transferred or transformed,all of the energy is still present somewhere in one form or another.
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 75 W 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 horsepower equals 745 watts.
horsepower
The use of force to move an object over distance
Work
