QUIZ/TEST CLASS 9TH SCIENCE CHAPTER 8 – MOTION MCQ Post author:KeyIndia Education Post published:December 4, 2021 Post category:CBSE Science Class 9th / NCERT / TEST/QUIZ Post comments:0 Comments /14 1 votes, 5 avg 5 Created on December 04, 2021Class 9th Science Class 9th Science Chapter 8 - Motion MCQ Quiz/Test NameEmail 1 / 14 Category: Class 9 Science Chapter 8 Motion 1. Which of the following situations is possible? A. Distance and the magnitude of displacement are equal in circular motion. B. An object can have acceleration, but constant velocity. C. The velocity of an object may be zero but acceleration is not zero. D. Average speed and the magnitude of average velocity are always equal in circular motion. 2 / 14 Category: Class 9 Science Chapter 8 Motion 2. A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is, A. u^2/2g B. u/2g C. u/g D. u^2/g 3 / 14 Category: Class 9 Science Chapter 8 Motion 3. A body is projected vertically upward from the ground. Taking vertical upward direction as positive and point of projection as origin, the sign of displacement of the body from the origin when it is at height h during upward and downward journey will be A. Positive, negative B. Negative, positive C. Positive, positive D. Negative, negative 4 / 14 Category: Class 9 Science Chapter 8 Motion 4. Which of the following figures represents uniform motion of a moving object correctly? A. b B. d C. a D. c 5 / 14 Category: Class 9 Science Chapter 8 Motion 5. Four cars A, B, C and D are moving on a levelled road. Their distance versus time graphs are shown in Fig. 8.2. Choose the correct statement A. Car B is the slowest. B. Car D is faster than car C. C. Car C is the slowest. D. Car A is faster than car D. 6 / 14 Category: Class 9 Science Chapter 8 Motion 6. The numerical ratio of displacement to distance for a moving object is A. always equal to 1 B. always more than 1 C. equal or less than 1 D. always less than 1 Explanation:The shortest distance between the initial and the endpoint is called displacement. Distance is the total path length.Displacement is vector and it may be positive or negative whereas Distance is scalar and it can never be negative.The distance can be equal or greater than displacement which means the ratio of displacement to distance is always equal to or less than 1. 7 / 14 Category: Class 9 Science Chapter 8 Motion 7. If the displacement of an object is proportional to square of time, then the object moves with A. increasing acceleration B. decreasing acceleration C. uniform velocity D. uniform acceleration Explanation:Velocity is measured in distance /second and acceleration is measured in Distance/ second2. Hence Uniform acceleration is the right answer. 8 / 14 Category: Class 9 Science Chapter 8 Motion 8. In which of the following cases of motions, the distance moved and the magnitude of displacement are equal? A. If the car is moving in circular path B. If the car is moving on straight road C. The earth is revolving around the Sun D. The pendulum is moving to and fro 9 / 14 Category: Class 9 Science Chapter 8 Motion 9. A particle is moving in a circular path of radius r. The displacement after half a circle would be: A. 2r B. πr C. 2πr D. Zero 10 / 14 Category: Class 9 Science Chapter 8 Motion 10. From the given υ – t graph, it can be inferred that the object is A. in uniform motion B. moving with uniform acceleration C. in non-uniform motion D. at rest Explanation:From the above-given graph, it is clear that velocity of the object remains constant throughout hence the object is in uniform motion. 11 / 14 Category: Class 9 Science Chapter 8 Motion 11. A boy goes from A to B with a velocity of 20 m/min and comes back from B to A with a velocity of 30 m/min. The average velocity of the boy during the whole journey is A. 25 m/s B. 20 m/min C. 24 m/min D. Zero 12 / 14 Category: Class 9 Science Chapter 8 Motion 12. Area under a υ -t graph represents a physical quantity which has the unit A. m^3 B. m^2 C. ms^-2 D. m 13 / 14 Category: Class 9 Science Chapter 8 Motion 13. Slope of a velocity – time graph gives A. the distance B. the acceleration C. the displacement D. the speed 14 / 14 Category: Class 9 Science Chapter 8 Motion 14. Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 ms-1 It implies that the boy is A. moving with uniform velocity B. at rest C. in accelerated motion D. moving with no acceleration Your score isThe average score is 36% LinkedIn Facebook 0% Restart quiz See review Send feedback Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window You Might Also Like Test/Quiz: Class 9: Chapter : Coordinate Geometry (Maths) November 26, 2021 Class 10 Chapter 15 Probability TEST/QUIZ September 21, 2022 Class 10 Science Chapter 1 Chemical Reactions and Equations| MCQ Test June 9, 2022 Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
