Kinematics MCQs with Explanations for Class 9 [1000+]

Explore a comprehensive collection of over 1000 kinematics MCQs, meticulously designed for Class 9 students to grasp the intricacies of kinematics, including motion, velocity, and acceleration concepts.

100+ Kinematics MCQs with Explanations for Class 9

Step into the world of Kinematics with our curated selection of MCQs. Tailored for Class 9 students, this vast repository of over 100+ MCQs provides a structured approach to understanding motion, velocity, and acceleration concepts through clear explanations and topic-wise organization.

  1. Which type of motion involves an object moving along a straight path?
    • A) Linear Motion
    • B) Circular Motion
    • C) Random Motion
    • D) Rotatory Motion
    • Correct Answer: A) Linear Motion
    • Explanation: Linear motion occurs when an object moves along a straight path, like a car driving on a straight road.
  2. What quantity has magnitude only and no direction?
    • A) Displacement
    • B) Velocity
    • C) Scalars
    • D) Vectors
    • Correct Answer: C) Scalars
    • Explanation: Scalars are quantities that are fully described by their magnitude alone, like speed and mass.
  3. If a car travels 100 meters in 20 seconds, what is its average speed?
    • A) 2 m/s
    • B) 5 m/s
    • C) 10 m/s
    • D) 20 m/s
    • Correct Answer: B) 5 m/s
    • Explanation: Average speed is calculated by dividing the total distance traveled by the total time taken. Here, average speed = total distance / total time = 100 m / 20 s = 5 m/s.
  4. What type of velocity describes the rate of change of position with respect to time?
    • A) Instantaneous Velocity
    • B) Average Velocity
    • C) Angular Velocity
    • D) Tangential Velocity
    • Correct Answer: A) Instantaneous Velocity
    • Explanation: Instantaneous velocity is the velocity of an object at a specific point in time.
  5. In a distance-time graph, a horizontal line represents:
    • A) Object At rest
    • B) Object Moving with constant speed
    • C) Object moving with Variable speed
    • D) Object Moving with Uniformly Changing speed (uniform acceleration)
    • Correct Answer: A) Object At rest
    • Explanation: A horizontal line on a distance-time graph indicates that the object is not changing its position over time, i.e., it’s at rest.
  6. Which equation represents the first equation of motion?
    • A) v = u + at
    • B) s = ut + \frac{1}{2}at^2
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: D) s = \frac{1}{2}(u + v)t
    • Explanation: The first equation of motion is s = ut + \frac{1}{2}at^2, which represents the relationship between displacement, initial velocity, time, and acceleration.
  7. Which type of motion is exhibited by a freely falling body?
    • A) Linear Motion
    • B) Circular Motion
    • C) Random Motion
    • D) Rotatory Motion
    • Correct Answer: A) Linear Motion
    • Explanation: When an object falls freely under the influence of gravity, it exhibits linear motion along a straight path.
  8. If a car accelerates uniformly from rest at 2 m/s² for 5 seconds, what is its final velocity?
    • A) 5 m/s
    • B) 7 m/s
    • C) 10 m/s
    • D) 12 m/s
    • Correct Answer: C) 10 m/s
    • Explanation: Using the equation of motion v = u + at, where u = 0 (initial velocity), a = 2 m/s², and t = 5 s, we get v = 0 + (2 \times 5) = 10 m/s.
  9. Which quantity is a vector quantity?
    • A) Mass
    • B) Time
    • C) Speed
    • D) Displacement
    • Correct Answer: D) Displacement
    • Explanation: Displacement is a vector quantity as it has both magnitude and direction.
  10. What type of velocity represents the total change in displacement over total time?
    • A) Average Velocity
    • B) Instantaneous Velocity
    • C) Tangential Velocity
    • D) Angular Velocity
    • Correct Answer: A) Average Velocity
    • Explanation: Average velocity is the total displacement divided by the total time taken.
  11. Which graph represents an object moving with uniform acceleration?
    • A) Distance-Time Graph
    • B) Speed-Time Graph
    • C) Velocity-Time Graph
    • D) Acceleration-Time Graph
    • Correct Answer: B) Speed-Time Graph
    • Explanation: A straight line on a speed-time graph indicates uniform acceleration.
  12. What is the SI unit of acceleration?
    • A) m
    • B) m/s
    • C) m/s²
    • D) m²/s
    • Correct Answer: C) m/s²
    • Explanation: Acceleration is measured in meters per second squared (m/s²) in the SI system.
  13. Which equation represents the second equation of motion?
    • A) v = u + at
    • B) s = ut + \frac{1}{2}at^2
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: C) v^2 = u^2 + 2as
    • Explanation: The second equation of motion relates final velocity, initial velocity, acceleration, and displacement.
  14. What is the acceleration of a freely falling body near the surface of the Earth?
    • A) 9.8 m/s
    • B) 9.8 m/s²
    • C) 9.8 m/s³
    • D) 9.8 m²/s
    • Correct Answer: B) 9.8 m/s²
    • Explanation: Near the surface of the Earth, the acceleration due to gravity is approximately 9.8 m/s².
  15. What is the slope of a distance-time graph representing constant speed?
    • A) Zero
    • B) Positive
    • C) Negative
    • D) Undefined
    • Correct Answer: A) Zero
    • Explanation: The slope of a distance-time graph representing constant speed is zero because the object is covering the same distance in equal intervals of time.
  16. Which equation represents the third equation of motion?
    • A) v = u + at
    • B) s = ut + \frac{1}{2}at^2
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: B) s = ut + \frac{1}{2}at^2
    • Explanation: The third equation of motion relates displacement, initial velocity, time, and acceleration.
  17. What is the velocity of a freely falling body just before hitting the ground?
    • A) Zero
    • B) 9.8 m/s
    • C) 9.8 m/s²
    • D) Cannot be determined
    • Correct Answer: A) Zero
    • Explanation: Just before hitting the ground, the velocity of a freely falling body is zero as it momentarily comes to rest.
  18. Which type of motion involves an object moving in a circular path?
    • A) Linear Motion
    • B) Circular Motion
    • C) Random Motion
    • D) Rotatory Motion
    • Correct Answer: B) Circular Motion
    • Explanation: Circular motion occurs when an object moves along a curved path, like a car driving around a roundabout.
  19. What is the SI unit of displacement?
    • A) m/s
    • B) m²
    • C) m
    • D) m/s²
    • Correct Answer: C) m
    • Explanation: Displacement is measured in meters (m) in the SI system.
  20. If a car travels 200 meters in 10 seconds and then another 200 meters in the next 10 seconds, what is its average speed?
    • A) 10 m/s
    • B) 20 m/s
    • C) 30 m/s
    • D) 40 m/s
    • Correct Answer: A) 10 m/s
    • Explanation: Average speed = total distance / total time = (200 m + 200 m) / (10 s + 10 s) = 400 m / 20 s = 20 m/s.
  21. Which quantity represents the change in position of an object?
    • A) Distance
    • B) Displacement
    • C) Speed
    • D) Time
    • Correct Answer: B) Displacement
    • Explanation: Displacement represents the change in position of an object, including both the magnitude and direction.
  22. What is the slope of a speed-time graph representing constant acceleration?
    • A) Zero
    • B) Positive
    • C) Negative
    • D) Constant
    • Correct Answer: D) Constant
    • Explanation: The slope of a speed-time graph representing constant acceleration is constant because acceleration remains the same over time.
  23. Which equation represents the relationship between distance, time, and speed?
    • A) s = ut + \frac{1}{2}at^2
    • B) v = u + at
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: D) s = \frac{1}{2}(u + v)t
    • Explanation: This equation represents the relationship between distance, initial velocity, final velocity, and time.
  24. If a ball is thrown vertically upwards, what is the direction of its acceleration?
    • A) Upwards
    • B) Downwards
    • C) Horizontal
    • D) There is no acceleration
    • Correct Answer: B) Downwards
    • Explanation: When a ball is thrown vertically upwards, its acceleration due to gravity acts downwards, opposing its motion.
  25. What is the SI unit of velocity?
    • A) m
    • B) m/s
    • C) m²
    • D) m/s²
    • Correct Answer: B) m/s
    • Explanation: Velocity is measured in meters per second (m/s) in the SI system.
  26. Which type of motion involves an object vibrating back and forth about a fixed point?
    • A) Linear Motion
    • B) Circular Motion
    • C) Random Motion
    • D) Vibratory Motion
    • Correct Answer: D) Vibratory Motion
    • Explanation: Vibratory motion occurs when an object moves back and forth about a fixed point, like a pendulum swinging.
  27. If a car travels 50 meters in 5 seconds and then 100 meters in the next 5 seconds, what is its average velocity?
    • A) 10 m/s
    • B) 15 m/s
    • C) 20 m/s
    • D) 25 m/s
    • Correct Answer: B) 15 m/s
    • Explanation: Average velocity = total displacement / total time = (100 m – 50 m) / 10 s = 50 m / 10 s = 5 m/s.
  28. What type of motion involves an object moving in a random path with no specific pattern?
    • A) Linear Motion
    • B) Circular Motion
    • C) Random Motion
    • D) Rotatory Motion
    • Correct Answer: C) Random Motion
    • Explanation: Random motion occurs when an object moves in an unpredictable path with no specific pattern, like the movement of dust particles in the air.
  29. What type of quantity is velocity?
    • A) Scalar
    • B) Vector
    • C) Neither scalar nor vector
    • D) Both scalar and vector
    • Correct Answer: B) Vector
    • Explanation: Velocity is a vector quantity as it has both magnitude and direction.
  30. If a car accelerates uniformly from 10 m/s to 30 m/s in 5 seconds, what is its acceleration?
    • A) 2 m/s
    • B) 4 m/s
    • C) 4 m/s²
    • D) 8 m/s²
    • Correct Answer: C) 4 m/s²
    • Explanation: Using the equation of motion v = u + at, where u = 10 m/s, v = 30 m/s, and t = 5 s, we can calculate acceleration as a = \frac{v - u}{t} = \frac{30 - 10}{5} = 4 m/s².
  31. Which graph represents an object at rest?
    • A) Distance-Time Graph
    • B) Speed-Time Graph
    • C) Velocity-Time Graph
    • D) Acceleration-Time Graph
    • Correct Answer: A) Distance-Time Graph
    • Explanation: A horizontal line on a distance-time graph indicates that the object is at rest, i.e., not changing its position over time.
  32. What is the acceleration of a car moving with constant velocity?
    • A) Zero
    • B) Positive
    • C) Negative
    • D) Constant
    • Correct Answer: A) Zero
    • Explanation: If a car is moving with constant velocity, its acceleration is zero as there is no change in velocity over time.
  33. What is the SI unit of speed?
    • A) m
    • B) m/s
    • C) m²
    • D) m/s²
    • Correct Answer: B) m/s
    • Explanation: Speed is measured in meters per second (m/s) in the SI system.
  34. If an object moves with a constant speed of 20 m/s for 10 seconds, how far does it travel?
    • A) 200 m
    • B) 20 m
    • C) 2 m
    • D) 10 m
    • Correct Answer: A) 200 m
    • Explanation: Distance = speed × time = 20 m/s × 10 s = 200 m.
  35. What is the velocity of a freely falling body at its highest point?
    • A) Zero
    • B) 9.8 m/s
    • C) 9.8 m/s²
    • D) Cannot be determined
    • Correct Answer: A) Zero
    • Explanation: At the highest point, the velocity of a freely falling body momentarily becomes zero before it starts falling back down.
  36. Which equation represents the relationship between velocity, time, and acceleration?
    • A) s = ut + \frac{1}{2}at^2
    • B) v = u + at
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: B) v = u + at
    • Explanation: This equation represents the relationship between final velocity, initial velocity, acceleration, and time.
  37. If a car accelerates uniformly from rest at 4 m/s² for 8 seconds, what is its final velocity?
    • A) 8 m/s
    • B) 16 m/s
    • C) 24 m/s
    • D) 32 m/s
    • Correct Answer: D) 32 m/s
    • Explanation: Using the equation of motion v = u + at, where u = 0 (initial velocity), a = 4 m/s², and t = 8 s, we get v = 0 + (4 \times 8) = 32 m/s.
  38. What is the slope of a distance-time graph representing uniform motion?
    • A) Positive
    • B) Negative
    • C) Zero
    • D) Constant
    • Correct Answer: C) Zero
    • Explanation: The slope of a distance-time graph representing uniform motion is zero because the object covers equal distances in equal intervals of time.
  39. Which equation represents the relationship between final velocity, initial velocity, acceleration, and displacement?
    • A) s = ut + \frac{1}{2}at^2
    • B) v = u + at
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: C) v^2 = u^2 + 2as
    • Explanation: This equation represents the relationship between final velocity, initial velocity, acceleration, and displacement.
  40. What is the velocity of a freely falling body after 3 seconds?
    • A) 9.8 m/s
    • B) 9.8 m/s²
    • C) 29.4 m/s
    • D) 29.4 m/s²
    • Correct Answer: C) 29.4 m/s
    • Explanation: The velocity of a freely falling body after 3 seconds can be calculated using the equation v = u + at, where u = 0 (initial velocity), a = 9.8 m/s², and t = 3 s. Thus, v = 0 + (9.8 \times 3) = 29.4 m/s.
  41. Which graph represents an object moving with variable speed?
    • A) Distance-Time Graph
    • B) Speed-Time Graph
    • C) Velocity-Time Graph
    • D) Acceleration-Time Graph
    • Correct Answer: B) Speed-Time Graph
    • Explanation: A curved line on a speed-time graph indicates variable speed, where the speed of the object changes over time.
  42. What is the acceleration of a car moving with constant velocity?
    • A) Zero
    • B) Positive
    • C) Negative
    • D) Constant
    • Correct Answer: A) Zero
    • Explanation: If a car is moving with constant velocity, its acceleration is zero as there is no change in velocity over time.
  43. Which equation represents the relationship between displacement, initial velocity, final velocity, and time?
    • A) s = ut + \frac{1}{2}at^2
    • B) v = u + at
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: D) s = \frac{1}{2}(u + v)t
    • Explanation: This equation represents the relationship between displacement, initial velocity, final velocity, and time.
  44. If an object moves with a constant speed of 10 m/s for 5 seconds, how far does it travel?
    • A) 10 m
    • B) 20 m
    • C) 30 m
    • D) 50 m
    • Correct Answer: C) 50 m
    • Explanation: Distance = speed × time = 10 m/s × 5 s = 50 m.
  45. What is the velocity of a freely falling body at 2 seconds?
    • A) 9.8 m/s
    • B) 19.6 m/s
    • C) 29.4 m/s
    • D) 39.2 m/s
    • Correct Answer: B) 19.6 m/s
    • Explanation: The velocity of a freely falling body at 2 seconds can be calculated using the equation v = u + at, where u = 0 (initial velocity), a = 9.8 m/s², and t = 2 s. Thus, v = 0 + (9.8 \times 2) = 19.6 m/s.
  46. Which graph represents an object moving with uniform acceleration?
    • A) Distance-Time Graph
    • B) Speed-Time Graph
    • C) Velocity-Time Graph
    • D) Acceleration-Time Graph
    • Correct Answer: B) Speed-Time Graph
    • Explanation: A straight line on a speed-time graph indicates uniform acceleration.
  47. What is the acceleration of a car moving with constant velocity?
    • A) Zero
    • B) Positive
    • C) Negative
    • D) Constant
    • Correct Answer: A) Zero
    • Explanation: If a car is moving with constant velocity, its acceleration is zero as there is no change in velocity over time.
  48. Which equation represents the relationship between velocity, time, and acceleration?
    • A) s = ut + \frac{1}{2}at^2
    • B) v = u + at
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: B) v = u + at
    • Explanation: This equation represents the relationship between final velocity, initial velocity, acceleration, and time.
  49. If a car accelerates uniformly from rest at 5 m/s² for 6 seconds, what is its final velocity?
    • A) 5 m/s
    • B) 15 m/s
    • C) 20 m/s
    • D) 30 m/s
    • Correct Answer: C) 30 m/s
    • Explanation: Using the equation of motion v = u + at, where u = 0 (initial velocity), a = 5 m/s², and t = 6 s, we get v = 0 + (5 \times 6) = 30 m/s.
  50. What is the velocity of a freely falling body after 4 seconds?
    • A) 9.8 m/s
    • B) 19.6 m/s
    • C) 29.4 m/s
    • D) 39.2 m/s
    • Correct Answer: B) 19.6 m/s
    • Explanation: The velocity of a freely falling body after 4 seconds can be calculated using the equation v = u + at, where u = 0 (initial velocity), a = 9.8 m/s², and t = 4 s. Thus, v = 0 + (9.8 \times 4) = 19.6 m/s.
  51. What type of motion involves an object moving along a curved path?
    • A) Linear Motion
    • B) Circular Motion
    • C) Random Motion
    • D) Rotatory Motion
    • Correct Answer: B) Circular Motion
    • Explanation: Circular motion occurs when an object moves along a curved path, like a car driving around a roundabout.
  52. What quantity represents the total change in position of an object?
    • A) Distance
    • B) Displacement
    • C) Speed
    • D) Time
    • Correct Answer: B) Displacement
    • Explanation: Displacement represents the total change in position of an object, including both the magnitude and direction.
  53. If a car travels 150 meters in 5 seconds and then another 150 meters in the next 5 seconds, what is its average velocity?
    • A) 15 m/s
    • B) 30 m/s
    • C) 45 m/s
    • D) 60 m/s
    • Correct Answer: A) 15 m/s
    • Explanation: Average velocity = total displacement / total time = (150 m – 150 m) / 10 s = 0 m / 10 s = 0 m/s.
  54. What is the velocity of a freely falling body just before hitting the ground?
    • A) Zero
    • B) 9.8 m/s
    • C) 9.8 m/s²
    • D) Cannot be determined
    • Correct Answer: A) Zero
    • Explanation: Just before hitting the ground, the velocity of a freely falling body is zero as it momentarily comes to rest.
  55. Which type of motion involves an object moving in a random path with no specific pattern?
    • A) Linear Motion
    • B) Circular Motion
    • C) Random Motion
    • D) Rotatory Motion
    • Correct Answer: C) Random Motion
    • Explanation: Random motion occurs when an object moves in an unpredictable path with no specific pattern, like the movement of dust particles in the air.
  56. What type of quantity is velocity?
    • A) Scalar
    • B) Vector
    • C) Neither scalar nor vector
    • D) Both scalar and vector
    • Correct Answer: B) Vector
    • Explanation: Velocity is a vector quantity as it has both magnitude and direction.
  57. If a car accelerates uniformly from 8 m/s to 24 m/s in 4 seconds, what is its acceleration?
    • A) 4 m/s
    • B) 4 m/s²
    • C) 8 m/s²
    • D) 16 m/s²
    • Correct Answer: C) 8 m/s²
    • Explanation: Using the equation of motion v = u + at, where u = 8 m/s, v = 24 m/s, and t = 4 s, we can calculate acceleration as a = \frac{v - u}{t} = \frac{24 - 8}{4} = 8 m/s².
  58. Which graph represents an object at rest?
    • A) Distance-Time Graph
    • B) Speed-Time Graph
    • C) Velocity-Time Graph
    • D) Acceleration-Time Graph
    • Correct Answer: A) Distance-Time Graph
    • Explanation: A horizontal line on a distance-time graph indicates that the object is at rest, i.e., not changing its position over time.
  59. What is the acceleration of a car moving with constant velocity?
    • A) Zero
    • B) Positive
    • C) Negative
    • D) Constant
    • Correct Answer: A) Zero
    • Explanation: If a car is moving with constant velocity, its acceleration is zero as there is no change in velocity over time.
  60. Which equation represents the relationship between velocity, time, and acceleration?
    • A) s = ut + \frac{1}{2}at^2
    • B) v = u + at
    • C) v^2 = u^2 + 2as
    • D) s = \frac{1}{2}(u + v)t
    • Correct Answer: B) v = u + at