Work, Energy and Power Flashcards
1
Q
Work
A
the product of the displacement and the component of the force parallel to the displacement
2
Q
gravitational potential energy
A
the energy an object possesses due to its position relative to a reference point
3
Q
kinetic energy
A
the energy an object has as a result
of the object’s motion
4
Q
mechanical energy
A
the sum of gravitational
potential and kinetic energy at a point
5
Q
law of conservation of energy
A
total energy in a system cannot be created nor destroyed, only transformed from one form to another
6
Q
work-energy theorem
A
work done by a net force on an object is equal to the change in the kinetic energy of
the object
7
Q
power
A
the rate at which work is done
8
Q
efficiency
A
the ratio of output power to input power
