Question

Is jumping rope a demonstration of work or heat?

Answer 1

Jumping rope is a demonstration of work. A force is said to do work if, when acting, there is a displacement of the point of application in the direction of the force.
For example, when a jumping rope is held above the ground and then dropped, the work done on the rope as it falls is equal to the weight of the rope (a force) multiplied by the distance to the ground (a displacement). Work transfers energy from one place to another, or one form to another.