An object on a table & a compressed spring both have this type of energy; one gravitational, one elastic
[DOC] [TLE] Hooke's Law Archives - Regents Physics - APlusPhysics [PAR] Posted in WEP | Tagged Hooke's Law, potential energy, spring constant | Leave 
a ... You must have done work to compress or stretch the spring, since you ... one 
type to another, and you can transfer energy from one object to another by doing 
work.