work, energy and power Flashcards
1
Q
joule
A
work done by a force of 1 N when its point of application moves through a distance of 1 metre in the direction of the force
2
Q
energy
A
the ability to do work
3
Q
principle of conservation of energy
A
energy can neither be created nor destroyed in any process but can be transformed from one form to another and transferred from one body to another
4
Q
work-energy theorem
A
net work done by external forces acting on a particle is equal to the change in kinetic energy of the particle
5
Q
average power
A
total work done divided by the total time interval
6
Q
work done
A
product of a force and the displacement in the direction of the force
