Question 11 MarkFrictional force does not depend on the nature of the surfaces in contact.AnswerfalseView full question & answer→
Question 21 MarkA streamlined shaped body helps in reducing drag.AnswertrueView full question & answer→
Question 31 MarkAthletes wear spikes to increase muscular force.AnswerfalseView full question & answer→
Question 41 MarkFluid friction depends on the shape of an object placed in the fluid and nature of fluid.AnswertrueView full question & answer→
Question 51 MarkFriction enables vehicles to move on the ground.AnswertrueView full question & answer→
Question 61 MarkIt is easy to roll the body over one another than to slide it.AnswertrueView full question & answer→
Question 71 MarkFriction increases with increase in smoothness of surface.AnswerfalseView full question & answer→
Question 91 MarkFriction always works in the same direction of motion of body.AnswerfalseView full question & answer→