Chapter 7 – Motion class 9th

 

📘 Chapter 7 – Motion

🔢 All Numerical Questions 


🔹 A. Basic Numericals (Speed / Distance)

Q1. A car covers a distance of 300 km in 5 hours. Find its speed in km/h and m/s.

Q2. A person covers a distance of 100 m in 20 s. Find his speed.

Q3. An object moves with a speed of 10 m/s for 2 minutes. Find the distance covered.


🔹 B. Average Speed / Average Velocity

Q4. An object covers 16 m in 4 s and 16 m in 2 s. Find the average speed.

Q5. A car travels from 2000 km to 2400 km in 8 hours. Find the average speed.

Q6. A person goes 100 m forward and comes back in 50 s. Find the average speed and average velocity.


🔹 C. Velocity

Q7. An object moves 50 m towards north in 10 s. Find its velocity.

Q8. An object moves 100 m east and then 100 m west. Find:
(i) distance
(ii) displacement


🔹 D. Acceleration

Q9. A bicycle increases its speed from 0 m/s to 6 m/s in 30 s. Find the acceleration.

Q10. An object slows down from 20 m/s to 10 m/s in 5 s. Find the acceleration.

Q11. A bus slows down from 80 km/h to 60 km/h in 5 s. Find the acceleration.


🔹 E. Time and Velocity

Q12. An object is moving with a speed of 0.5 m/s and is slowing down at –0.05 m/s². Find the time taken to stop.


🔹 F. Equations of Motion

Q13. A train increases its speed from 36 km/h to 54 km/h in 10 s. Find:
(i) acceleration
(ii) distance

Q14. A car moves with an acceleration of 4 m/s² for 10 s. Find the distance covered.

Q15. A scooter is moving with a speed of 10 m/s and comes to rest with an acceleration of –0.5 m/s². Find the distance covered before stopping.

Q16. An object starts from rest and moves with an acceleration of 5 m/s² for 10 s. Find:
(i) final velocity
(ii) distance


🔹 G. Advanced Numericals

Q17. A train increases its speed from 72 km/h to 90 km/h in 20 s. Find the distance covered.

Q18. An object covers 800 m with an acceleration of 4 m/s². Find the final velocity.

Q19. A ball is dropped from a height of 20 m (g = 10 m/s²). Find:
(i) velocity on hitting the ground
(ii) time taken


🔹 H. Graph Based Numericals

Q20. What does the area under a velocity-time graph represent?

Q21. A distance-time graph is a straight line. What type of motion does it represent?

Q22. A velocity-time graph is a horizontal straight line. What does it indicate?


🔹 I. Light and Distance

Q23. The speed of light is 3 × 10⁸ m/s. Find the distance covered in 5 minutes.


🔹 J. Mixed (HOTS)

Q24. A person walks at 5 m/s for 10 s, then rests for 5 s, and then moves at 10 m/s for 5 s. Find the average speed.

Q25. A car covers half the distance at 40 km/h and the remaining half at 60 km/h. Find the average speed.


🔹 K. Additional NCERT Based Questions

Q26. The speed of a bus decreases from 80 km/h to 60 km/h in 5 s. Find its acceleration.

Q27. A train starts from rest and attains a speed of 40 km/h in 10 minutes with uniform acceleration. Find the acceleration.

Q28. A trolley moves down an inclined plane with an acceleration of 2 m/s². Find its velocity after 3 s.

Q29. A racing car has a uniform acceleration of 4 m/s². Find the distance covered in 10 s.


🔹 L. Other Important Questions

Q30. A bus starts from rest and moves with a uniform acceleration of 0.1 m/s² for 2 minutes. Calculate:
(a) final velocity
(b) distance covered

Q31. A train moving at 90 km/h is brought to rest by applying brakes with a uniform retardation of 0.5 m/s². Find the distance covered before stopping.

Q32. A stone is thrown vertically upward with a velocity of 5 m/s. If acceleration due to gravity is 10 m/s² downward, find the maximum height reached and the time taken.

Q33. Abdul goes to school with an average speed of 20 km/h and returns with an average speed of 30 km/h. Find his average speed for the whole journey.

Q34. A motorboat starts from rest and moves with an acceleration of 3 m/s² for 8 s. Find the distance covered.


🔹 M. Final Questions

Q35. A ball is dropped from a height of 20 m and accelerates at 10 m/s². Find:
(a) velocity on hitting the ground
(b) time taken

Q36. A car is represented by a speed-time graph. Calculate the required quantities from the graph.

Q37. An artificial satellite moves in a circular orbit of radius 42250 km and completes one revolution in 24 hours. Find its speed.



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