MCQ 11 MarkWhich form of energy is possessed by a stretched spring?✓Elastic potentialBHeatAnswerCorrect option: A. Elastic potentialElastic potentialView full question & answer→
MCQ 21 MarkWhen a ball is thrown vertically upwards, the gravitational potential energy of the ball✓increasesBdecreasesCremains sameDnone of theseAnswerCorrect option: A. increases increasesView full question & answer→
MCQ 31 MarkIf the force applied on a body decreases, then the work done on it will✓decreaseBincreaseCremain the sameDbe zeroAnswerCorrect option: A. decrease decreaseView full question & answer→
MCQ 41 MarkNo work is said to be done if the angle between the directions of force and displacement isA$0^\circ$✓$90^\circ$Cbetween $0^\circ$ and $90^\circ$D$180^\circ$AnswerCorrect option: B. $90^\circ$$90^\circ$View full question & answer→
MCQ 51 MarkIn which of the following situations no work is said to be done ?ADrawing water from a wellBKicking a ballCClimbing up a hill✓Pushing a wallAnswerCorrect option: D. Pushing a wallPushing a wallView full question & answer→