Important Questions for CBSE Class 9 Science Chapter 11 Work, Power and Energy IMPORTANT QUESTIONS 1-MARK QUESTIONS Question.1 Does work done depend upon the velocity of the body. [SAII-2014] Answer. No. Question.2 State the law of conservation of energy. [SAII-2014] Answer. It states that energy can neither be created nor destroyed. It can only change its … [Read more...]