Which of the following quantities is different from the others?
work
kinetic energy
force
potential energy
work
kinetic energy
force
potential energy
2 Answers
I think the answer is Potential Energy is the different one
Explanation:
All of the other quantities require motion.
Work is force applied over a distance
F = ma, so without some change in acceleration, either a change in speed or direction or both, there is no acceleration.
Potential energy does not require motion. A book sitting on a shelf has potential energy equal to massgravityheight. No motion is involved.
Those are my thoughts anyway. There may be another way to look at this.
I believe force is the odd one out.
Explanation:
The SI units for work, kinetic energy, and potential energy are all Joules. The SI unit for force is Newtons.
Energy (potential energy, kinetic potential energy, or some other type of energy) must be applied to the task of doing work. Doing work can increase the energy of a system.
I hope this helps,
Steve