MCQ 11 MarkIf you pour some oil onto a floor, the friction wouldAincrease✓decreaseCremain the sameDnone of theseAnswerCorrect option: B. decreasedecreaseView full question & answer→
MCQ 21 MarkFriction produces✓heatBchange of stateCelectricityDpressureAnswerCorrect option: A. heatheatView full question & answer→
MCQ 31 MarkFriction for an object can be reduced byAproviding wheelsBlubricatingCstreamliningDall of theseAnswerall.-of theseView full question & answer→
MCQ 41 MarkA car skids on a wet or muddy road due to –Aincreased friction between the road and the tyres.Blubrication of brakes on a wet road.✓reduced friction between the road and the tyres.Dstreamlined shape of the carAnswerCorrect option: C. reduced friction between the road and the tyres.reduced friction between the road and the tyres.View full question & answer→
MCQ 51 MarkFriction is offered by –AsolidsBliquidsCgases✓all of theseAnswerCorrect option: D. all of theseall of theseView full question & answer→
MCQ 61 MarkFriction always –Asupports motionBstarts motionCencourages motion✓opposes motionAnswerCorrect option: D. opposes motionopposes motionView full question & answer→
MCQ 71 MarkForce of friction comes into play when a/an –Aobject attempts motionBmoving object tries to stopCobject is at rest✓all of the theseAnswerCorrect option: D. all of the theseall of the theseView full question & answer→