Chapter 3 Vocab

Is the form of energy involved in chemical reactions

Is another form of energy from electromagnetic interactions

Contain the stored radiant energy of organisms that lived millions of years ago. Ex: petroleum, natural gas, and coal.

Energy from beneath earths surface

James watt who designed a workable steam engine defined horsepower as a power rating of 550 ft*lb/s

W=Fd W=(newton)(meter) Newton meter is a unit of work and is now called the joule 1 meter per second

The motion of energy. • the work done to put the object in motion • the work the moving object will do in coming to rest (measured in joules) Kinetic energy = (mass)(velocity)^2 KE=1/2mv^2

Energy is never created or destroyed . Energy can be converted from one form to another, but the total energy remains constant.

The form of energy of familiar objects and machines

Is a form of energy often discussed because of its use as an energy source in power plants

Is energy that travels through space

Energy due to its position

Rate at which energy is transformed or the rate at which work is done *Power=work/time *P=W/t

Power is measured in joules per second which is a watt

The product of the applied force and the parallel distance through which the force acts W=Fd In metric system- force is measured in newtons and distance in meters

Gravitational potential energy Gravitational potential energy=weight*height PE=mgh