Karnataka PUC I Laws of Motion — practice questions
22 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Karnataka PUC I Laws of Motion in the app →A bus brakes hard and the standing passengers lurch forward. The property of matter behind that lurch is:A textbook defines that property in two words: resistance to:Rolling balls down inclined planes to work out how motion really behaves was the method of:The older view that a body needs a constant push just to keep moving is described as:A trolley on a level floor is pushed and then released. If no net external force acted, its acceleration wouldThe same law read backwards says acceleration can be non-zero only when there is a net external:A 2 kg trolley moves at 3 m/s. Multiplying its mass by its velocity gives its:Because velocity has a direction as well as a size, momentum is a:A cricketer catches a fast ball and pulls his hands back as he does so. This lengthens the stopping time, whicStated generally, the greater the rate of change of momentum, the greater is the:An engineer records a force in SI units. That unit is the:A hammer strikes a nail for a few milliseconds. Force multiplied by that short time duration gives the:A very large force acting for a very short time is described as an:In the third law, the words action and reaction are said to mean nothing else but:Two railway wagons collide and couple together. The standard application of conservation of momentum here is tA book lies still on a table. Balancing its weight is an upward push from the table called the:A crate is pushed but does not budge. The surface force that cancels the push is called:The friction acting before an object begins to slide is distinguished from the friction acting once it moves. The constant of proportionality linking maximum static friction to the normal force is the coefficient of:Experiments show that the coefficient for a sliding object compares with the one for a stationary object as:A ring or sphere rolling without slipping touches the ground at just one point at a time. In principle it suffA stone is whirled on a string. The inward force keeping it on its circle is the centripetal force, supplied h