Physics
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
Related Questions
Give one relevant example for each of the following transformations of energy:
(i) Electrical energy to heat energy
(ii) Electrical energy to mechanical energy
(iii) Electrical energy to light energy
(iv) Chemical energy to heat energy
(v) Chemical energy to light energy
What do you mean by conservation of mechanical energy? State the condition when it holds.
A ball is made to fall freely from a height. State the kind/kinds of energy possessed by the ball when it is:
(a) at the highest point
(b) just in the middle
(c) at the ground.
State the changes in form of energy while producing hydro-electricity.