Q: A spring oscillates on a horizontal frictionless surface. At the end of the spring is attached a block of mass M. For any given spring extension, by how much does the spring potential energy change if the mass M is doubled to 2M?
A		The energy halves.
B		The energy remains the same.
C		The energy doubles.
D		The energy quandruples.

Energy & Work | Periodic Motion | Quantitative Skills |