If the displacement of an object is proportional to square of time, then the […] (momentum/force) 2: The property by the virtue of which an object tends to remain in the state of rest or of uniform motion unless acted upon by some force is called _____. Here you can get Class 9 Important Questions Science based on NCERT Text book for Class IX.Science Class 9 Important Questions are very helpful to score high marks in board exams. 1. Extra Questions for Class 9th: Ch 9 Force and Laws of Motion (Science) Important Questions Answer Included Very Short Answer Questions (VSAQs): 1 Mark Q1. Question 1. Check the below NCERT MCQ Questions for Class 11 Physics Chapter 5 Laws of Motion with Answers Pdf free download. CBSE MCQs on Class 9 Science Chapter 9: Force and Laws of Motion are prepared by subject experts to help students know the important topics and fundamental concepts from the … Answer: According to second law, F = ma If F = 0, a =0 since m ≠ 0, But a = $$\frac{v-u}{t}$$ or, v – u =0 so, v = u for whatever time t is taken. 1 N = 980 dyne . Force can be defined as an influence causing a body at rest or moving with constant velocity to undergo acceleration. Science for Ninth Class Part1 Physics ; Science for Ninth Class Part2 Chemistry ; Science for Ninth Class Part3 Biology Download CBSE Class 9 Physics Force and Laws of Motion MCQs in pdf, Physics chapter wise Multiple Choice Questions free, Question: In the following example, try to identify the number of times the velocity of ball changes - A football player kicks a football to another player of his team who kicks the football towards the goal. Question 1. All Force and Laws of Motion Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. What is the mass of the body? We have Provided Force and Laws of Motion Class 9 Science MCQs Questions with Answers to help students understand the concept very well. 7. If the coefficient of static and dynamic friction are 0.4 and 0.3 respectively, then the acceleration of the body is The second law of motion states that “the rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force.” The momentum (represented as p) of an object is defined as the product of its mass (represented as m) and velocity (represented as v). An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a friction less horizontal table. Laws of Motion MCQs Sheet 1. 1N = 1 dyne. FORCE AND LAWS OF MOTION. Laws of Motion MCQs Sheet 1. Answers to these questions might seem pretty common sense at first, but they aren't. 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