Energy Definitions Flashcards
1
Q
gravitational potential energy
A
the energy an object possesses due to its position relative to a reference point
2
Q
Ep equation
A
Ep = mgh
3
Q
kinetic energy
A
the energy an object has as a result of the object’s motion
4
Q
kinetic energy equation
A
Ek = 1/2 mv^2
5
Q
mechanical energy
A
the sum of gravitational potential and kinetic energy at a point
6
Q
mechanical energy equation
A
Em = Ep + Ek
7
Q
the law of conservation of energy
A
the total energy in a system cannot be created or destroyed; only transformed from one form to another
8
Q
the principle of conservation of mechanical energy
A
in the absence of air resistance or any external forces, the mechanical energy of an object is constant
9
Q
principle of conservation of mechanical energy equation
A
(Ep+Ek)i =(Ep+Ek)f
