Class 9 – Practice Level 2 – Motion – Set 2 Leave a Comment / By Gulam Hamza / July 6, 2024 Class 9 - Practice Level 2 - Motion - Set 2 Total questions: 25 1. A car is moving with a velocity of 30 m/s and comes to a stop in 10 seconds. What is its acceleration? -3 m/sÂ² 3 m/sÂ² -6 m/sÂ² 6 m/sÂ² None 2. A projectile is launched with an initial velocity of 50 m/s at an angle of 30Â° to the horizontal. What is the maximum height reached by the projectile? (Take g = 9.8 m/sÂ²) 31.25 m 37.5 m 25 m 50 m None 3. A cyclist travels 100 meters in 25 seconds and then 200 meters in 50 seconds. What is the average speed of the cyclist for the entire journey? 4 m/s 2.67 m/s 3 m/s 5 m/s None 4. A displacement-time graph shows a straight line with a positive slope. This indicates: Uniform motion Accelerated motion Decelerated motion Variable motion None 5. A ball is dropped from a height of 20 meters. How long does it take to reach the ground? (Take g = 9.8 m/sÂ²) 1 s 2 s 3 s 4 s None 6. An object covers 5 m in the first second, 10 m in the next second, and 20 m in the third second. What type of motion is this? Uniform motion Non-uniform motion Circular motion Periodic motion None 7. A car moving with a speed of 72 km/h is brought to a stop in 10 seconds. What is the distance travelled by the car before it stops? (Take 1 km/h = 0.27778 m/s) 100 m 150 m 200 m 300 m None 8. A car moves along a circular path of radius 50 m with a constant speed of 10 m/s. What is the acceleration of the car? 2 m/sÂ² 5 m/sÂ² 10 m/sÂ² 20 m/sÂ² None 9. A car accelerates from 20 m/s to 30 m/s in 5 seconds. What is its acceleration? 2 m/sÂ² 3 m/sÂ² 4 m/sÂ² 5 m/sÂ² None 10. A person walks 5 km in 1 hour and then 10 km in 2 hours. What is the average speed? 5 km/h 3.33 km/h 4 km/h 6 km/h None 11. Two cars are moving towards each other with speeds of 30 km/h and 20 km/h. What is their relative speed? 50 km/h 10 km/h 25 km/h 15 km/h None 12. A car moving with a velocity of 15 m/s is uniformly accelerated at 2 m/sÂ². What will be its velocity after 10 seconds? 25 m/s 30 m/s 35 m/s 40 m/s None 13. An object starts from rest and accelerates uniformly at $ \displaystyle \text{4 m/}{{\text{s}}^{2}}$ . What distance will it cover in 5 seconds? 25 m 50 m 75 m 100 m None 14. A car moving with a speed of 20 m/s stops in 4 seconds. What distance does it cover before stopping? 20 m 40 m 60 m 80 m None 15. A projectile is launched with an initial velocity of 100 m/s at an angle of 60Â° to the horizontal. What is the horizontal range of the projectile?$ \displaystyle \left( {Take\text{ }g\text{ }=\text{ }9.8\text{ }m/s{}^\text{2}} \right)$ 526 m 758 m 866 m 1512 m None 16. A cyclist moving with a speed of 10 m/s increases his speed to 25 m/s in 5 seconds. What is the acceleration? 3 m/sÂ² 2 m/sÂ² 5 m/sÂ² 6 m/sÂ² None 17. What does the slope of a velocity-time graph represent? Speed Displacement Acceleration Time None 18. A car is moving with uniform speed along a circular path. Which of the following statements is true? The car has uniform velocity The car has uniform acceleration The car has zero acceleration The car has centripetal acceleration None 19. Two cars are moving in the same direction with speeds of 50 km/h and 70 km/h. What is the relative speed of the second car with respect to the first car? 20 km/h 50 km/h 70 km/h 120 km/h None 20. An object is moving with a constant speed in a straight line. Which of the following statements is true? The object has zero acceleration The object has uniform acceleration The object has changing acceleration The object has centripetal acceleration None 21. A body initially at rest accelerates at 5 m/sÂ². What is its velocity after 6 seconds? 20 m/s 25 m/s 30 m/s 35 m/s None 22. In a distance-time graph, a straight line with a constant positive slope indicates: Uniform motion Accelerated motion Decelerated motion Variable motion None 23. Which of the following correctly defines instantaneous velocity? Total displacement divided by total time Average velocity over a period of time Velocity of an object at any instant Initial velocity of an object None 24. An object travels 5 meters in the first second, 15 meters in the next second, and 25 meters in the third second. What type of motion is this? Uniform motion Non-uniform motion Circular motion Periodic motion None 25. What does a steep slope on a distance-time graph indicate? No motion Slow speed Fast speed Uniform motion None 1 out of 25 Time's up