Question

State whether the potential energy in each of the following cases increases or decreases:
a) A spring is compressed.
b) A spring is stretched.
c) A body is taken away by the force of gravity.
d) Air bubble rises up in water.

Answer 1

a) A spring is compressed $\to$ increases
b) A spring is stretched $\to$ increases
c) A body is taken away by the force of gravity $\to$ increases
d) Air bubble rises up in water $\to$ increases