Write the mathematical fomula of potential energy
class 9
Answers
Answer:
The potential energy (Ep) is equal to the work done over an object of mass 'm' to raise it by a height 'h'. Thus, Ep = mgh, where g = acceleration due to gravity.
Answer:
Potential energy sounds like it's simply energy that hasn't become actualized, and thinking of it like that can lull you into believing it isn't real. Stand under a safe suspended 30 feet above the ground, though, and your opinion might change. The safe has potential energy due to the force of gravity, and if someone were to cut the rope holding it, that energy would turn into kinetic energy, and by the time the safe reached you, it would have enough "actualized" energy to give you a splitting headache.
A better potential energy definition is stored energy, and it takes "work" to store the energy. Physics has a specific definition of work – work is done when a force moves an object over a distance. Work is related to energy. It's measured in joules in the SI system., which are also potential and kinetic energy units. To convert work into potential energy, you have to act against a particular type of force, and there are several. The force could be gravitation, a spring or an electric field. The characteristics of the force determine the amount of potential energy you store by doing work against it.