Class 9 – Practice Level 2 – Motion – Set 1 Leave a Comment / By Gulam Hamza / July 5, 2024 Class 9 - Practice Level 2 - Motion - Set 1 Total questions: 25 1. A car travels from point A to point B with a velocity of 40 km/h and returns from B to A with a velocity of 60 km/h. What is the average velocity for the entire journey? 50 km/h 48 km/h 0 km/h 48.6 km/h None 2. If the velocity-time graph of a particle is a straight line inclined to the time axis, Uniform velocity Uniform acceleration Uniform speed Non-uniform acceleration None 3. A car starts from rest and accelerates uniformly at 2 m/sÂ². What will be its velocity after 5 seconds? 5 m/s 10 m/s 15 m/s 20 m/s None 4. Two cars are moving in the same direction with speeds of 50 km/h and 60 km/h. What is the relative velocity of the second car with respect to the first car? 10 km/h 110 km/h 50 km/h 60 km/h None 5. An object moving in a circular path of radius 7 m completes one revolution in 22 seconds. What is the speed of the object? 1 m/s 2 m/s 3 m/s 4 m/s None 6. A stone is thrown vertically upward with an initial velocity of 20 m/s. How long will it take to reach the highest point? 1 s 2 s 3 s 4 s None 7. In a distance-time graph, a curve that slopes downward indicates: Uniform motion Deceleration Acceleration Uniform speed None 8. A runner completes one round of a circular track of radius 100 m in 40 seconds. What is the displacement of the runner after 80 seconds? 0 m 200 m 100 m 400 m None 9. If a body covers distances of 5 m, 10 m, 15 m, and 20 m in four consecutive seconds, what is its average speed? 12.5 m/s 10 m/s 5 m/s 15 m/s None 10. Which of the following pairs are vector quantities? Speed and distance Speed and displacement Velocity and acceleration Distance and displacement None 11. At what angle should a projectile be launched to achieve maximum range? 30Â° 45Â° 90Â° 60Â° None 12. A car is moving in a circular track with a constant speed. Which of the following is true? The car has zero acceleration The car has uniform acceleration The car has changing acceleration The car has centripetal acceleration None 13. A freely falling object falls a distance of 45 m. What is the time taken to fall this distance? (Take g = 9.8 m/sÂ²) 3 s 2 s 4 s 5 s None 14. Two trains are moving in opposite directions with speeds of 60 km/h and 90 km/h. What is the relative speed of one train with respect to the other? 150 km/h 30 km/h 60 km/h 90 km/h None 15. A car is moving with a velocity of 20 m/s and it accelerates uniformly at 5 m/sÂ² for 6 seconds. What will be its final velocity? 50 m/s 30 m/s 60 m/s 40 m/s None 16. A car starts from rest and covers a distance of 100 m in 5 seconds. What is the acceleration of the car? 4 m/sÂ² 5 m/sÂ² 6 m/sÂ² 8 m/sÂ² None 17. An object travels 10 meters in the first second, 20 meters in the next second, and 30 meters in the third second. Which of the following best describes its motion? Uniform motion Non-uniform motion Uniform acceleration Uniform deceleration None 18. A cyclist starts from rest and attains a velocity of 10 m/s in 20 seconds. What is his acceleration? 0.2 m/sÂ² 0.5 m/sÂ² 1 m/sÂ² 2 m/sÂ² None 19. What does the area under a velocity-time graph represent? Speed Displacement Acceleration Time None 20. An object starts from rest and accelerates uniformly at 2 m/sÂ². What distance will it cover in 10 seconds? 50 m 100 m 150 m 200 m None 21. A particle moves with a constant velocity. Which of the following statements is true? Its acceleration is zero Its acceleration is constant Its acceleration is increasing Its acceleration is decreasing None 22. A body initially at rest accelerates at 4 m/sÂ². What is its velocity after 8 seconds? 16 m/s 24 m/s 32 m/s 40 m/s None 23. In a distance-time graph, a straight line parallel to the time axis indicates: Accelerated motion Constant motion Object at rest Non-uniform motion None 24. What is instantaneous velocity? Velocity of an object at any instant Average velocity over a period of time Total displacement divided by total time Initial velocity of an object None 25. An object moves with uniform speed in a circular path. Which of the following changes continuously? Speed Velocity Acceleration Displacement None 1 out of 25 Time's up