conservation of energy -2

questions based on conservation of energy -1

Define the law of conservation of energy .

(a) Under what conditions energy is conserved ? (b) What is the only restriction to the principle of conservation of energy ?

The kinetic energy of a freely falling ball is not conserved. Why is this not a violation of the law of conservation of energy ?

State and prove law of conservation of energy .

STATEMENT - 1 : Lenz's Law is another form of law of conservation of energy. and STATEMENT - 2 : All conservation laws are obtained from law of conservation of energy.