Question 1
What does conservation of energy state in a closed system?
Question 2
A ball is dropped from rest. As it falls, which energy change occurs?
Question 3
If no nonconservative forces act on an object, what happens to its mechanical energy?
Question 4
Which quantity is an example of kinetic energy?
Question 5
A roller coaster starts at the top of a hill and moves downward. If friction is ignored, what happens to its speed?
