energy Flashcards
(15 cards)
energy
the ability to do work
Potential energy
energy in position; energy in storage
Kinetic energy
energy of motion; the form capable of doing work
Gravitational potential energy
energy that is stored in gravitational field
Elastic potential energy
energy due to the compression and expansion of an object
Chemical potential energy
energy stored within chemical bonds of an object
Mechanical energy
The sum of kinetic energy and all forms potential energy
Work- kinetic energy theorem
The net work done = the change in the objects kinetic energy
Power
Describe how much work is done in a period of time
Potential energy formula
PE = mgh
Elastic potential energy formula
PE = 1/2 kx^2
constant energy formula and force
K= f/x and F =kx
Kinetic energy formula
KE = 1/2 mv^2
Power formula
P = W/T
Watts Formula
W = f(d) cos
