The use of a machine to do work is called the ____.
a. transformational advantage c. resistance force
b. directional force d. mechanical advantage
Question 2James Prescott Joule ____.
a. proposed that work always produces energy
b. based his work on the second law of thermodynamics
c. first stated the work-energy theorem
d. stated that the change in the potential energy of an object is equal to the work done on the object