Question 11 MarkThe SI unit of energy is newton.AnswerFalse. SI unit of energy is Joule (J).View full question & answer→
Question 21 MarkThe energy possessed by a body by virtue of its position is known as kinetic energy.AnswerFalse. The energy possessed by a body by virtue of its position is known as potential energy.View full question & answer→
Question 31 MarkBoth kinetic and potential energy are called mechanical energy.AnswertrueView full question & answer→
Question 41 MarkSound is a form of energy produced by a vibrating body.AnswertrueView full question & answer→
Question 51 MarkA coiled spring in a watch has gravitational potential energy.AnswerFalse. A coiled spring in a watch has elastic potential energy.View full question & answer→
Question 61 MarkA series of energy transformations is called an ………….AnswerA series of energy transformations is called an energy chain.View full question & answer→
Question 71 MarkThe sources of energy that deplete on use and cannot be used again are called …………. sources of energy.AnswerThe sources of energy that deplete on use and cannot be used again are called non-renewable sources of energy.View full question & answer→
Question 81 Mark………….. energy is also used in the treatment of cancer.AnswerNuclear energy is also used in the treatment of cancer.View full question & answer→
Question 91 MarkThe energy possessed by the streched rubber band of a catapult is in the form of ……………AnswerThe energy possessed by the streched rubber band of a catapult is in the form of elastic potential energy.View full question & answer→
Question 101 MarkThe SI unit of work is ………….AnswerThe SI unit of work is joule (J).View full question & answer→