Looking for authentic SEBA Class 9 Science Chapter 8 (Motion) MCQ solutions for the 2026–27 academic year? Access complete multiple-choice questions with correct options, detailed explanations, displacement vs distance practice, equations of motion concept rules, and physics objective notes to score top marks in your annual exams.
MCQ
1. Motion is defined as:
A) Change in direction only
B) Change in speed only
C) Change in position with time
D) Change in shape
Answer: C
2. Motion depends on:
A) Reference point
B) Object size
C) Object color
D) Observer’s age
Answer: A
3. A passenger in a bus sees other passengers at rest. This illustrates:
A) Absolute motion
B) Relative motion
C) Circular motion
D) Accelerated motion
Answer: B
4. A reference point is used to:
A) Measure distance only
B) Describe position
C) Measure speed only
D) Measure mass
Answer: B
5. Earth’s rotation is not felt by us because:
A) Earth is very small
B) Motion is slow and smooth
C) We do not move
D) Earth is stationary
Answer: B
6. Leaves shaking in wind indicate:
A) Motion of leaves only
B) Motion of air
C) Change in color
D) Earth’s motion
Answer: B
7. Sunrise and sunset are examples of:
A) Motion of the Sun
B) Motion of the Moon
C) Rotation of Earth
D) Revolution of Earth
Answer: C
8. Motion in a straight line is:
A) The most complex motion
B) Circular motion
C) Simplest motion
D) Oscillatory motion
Answer: C
9. Distance depends on:
A) Initial and final positions only
B) Path covered
C) Time only
D) Speed only
Answer: B
10. Displacement is:
A) Total path covered
B) Shortest distance between initial and final positions
C) Always greater than distance
D) Scalar quantity
Answer: B
11. Distance is a:
A) Vector
B) Scalar
C) Both scalar and vector
D) None
Answer: B
12. Displacement is a:
A) Scalar
B) Vector
C) Zero always
D) None
Answer: B
13. If an object moves from O → A → O:
A) Distance = 0, Displacement = 0
B) Distance = sum of paths, Displacement = 0
C) Distance < Displacement
D) Distance = Displacement
Answer: B
14. Magnitude of displacement can never be:
A) Less than distance
B) Equal to distance
C) Greater than distance
D) Zero
Answer: C
15. An object moves 60 km from O to A, then 35 km to C. Displacement =
A) 95 km
B) 35 km
C) 60 km
D) 0 km
Answer: B
16. Distance covered by an object is always:
A) Zero
B) Greater than or equal to displacement
C) Less than displacement
D) Negative
Answer: B
17. Displacement can be zero when:
A) Object moves straight
B) Object returns to starting point
C) Object moves in circle
D) Object moves randomly
Answer: B
18. If displacement is zero, distance:
A) Must be zero
B) Can be non-zero
C) Always equals displacement
D) Negative
Answer: B
19. Example of uniform motion is:
A) Car moving in traffic
B) Train moving at constant speed
C) Dog running randomly
D) Jogger stopping and running
Answer: B
20. Non-uniform motion occurs when:
A) Object moves equal distances in equal times
B) Object moves unequal distances in equal times
C) Object is at rest
D) Object moves at uniform speed
Answer: B
SEBA Class 9 Science Chapter 8 MCQ Solutions
21. Speed is defined as:
A) Distance × Time
B) Distance ÷ Time
C) Displacement × Time
D) Displacement ÷ Time
Answer: B
22. Unit of speed is:
A) m²/s²
B) m/s
C) kg·m/s²
D) N
Answer: B
23. A car travels 100 km in 2 h. Its speed =
A) 25 km/h
B) 50 km/h
C) 100 km/h
D) 200 km/h
Answer: B
24. Velocity is different from speed because:
A) Includes mass
B) Includes time
C) Includes direction
D) Includes acceleration
Answer: C
25. 40 km/h north is an example of:
A) Speed
B) Velocity
C) Acceleration
D) Distance
Answer: B
26. Average speed =
A) Total displacement ÷ Total time
B) Total distance ÷ Total time
C) Velocity ÷ Time
D) Acceleration × Time
Answer: B
27. Average velocity =
A) u + v / 2 (for uniform acceleration)
B) Distance ÷ Time
C) Speed ÷ Time
D) Acceleration × Time
Answer: A
28. If velocity changes by changing direction only, speed:
A) Changes
B) Does not change
C) Becomes zero
D) Becomes negative
Answer: B
29. Units of speed and velocity include:
A) m/s, km/h, cm/s
B) m/s² only
C) km²/h
D) m³/s
Answer: A
30. A car moves at 60 km/h east. If it changes direction but keeps 60 km/h, its:
A) Speed changes
B) Velocity changes
C) Both speed and velocity unchanged
D) None
Answer: B
Class 9 Science Chapter 8 MCQ Question Answer SEBA 2026-27
31. Acceleration is defined as:
A) Change in displacement per second
B) Change in velocity per second
C) Change in distance per second
D) Change in speed per hour
Answer: B
32. Formula for acceleration:
A) a = (v + u)/t
B) a = (v – u)/t
C) a = v × t
D) a = s/t
Answer: B
33. Unit of acceleration is:
A) m/s²
B) m/s
C) km/h
D) N
Answer: A
34. Positive acceleration occurs when:
A) Object slows down
B) Object speeds up
C) Object moves at constant speed
D) Object stops
Answer: B
35. Negative acceleration (retardation) occurs when:
A) Speed increases
B) Speed decreases
C) Object at rest
D) Object moves in circle
Answer: B
36. A boy accelerates from 0 to 6 m/s in 30 s. Acceleration =
A) 0.2 m/s²
B) 0.5 m/s²
C) 2 m/s²
D) 6 m/s²
Answer: A
37. A boy slows from 6 m/s to 4 m/s in 5 s. Acceleration =
A) 0.4 m/s²
B) -0.4 m/s²
C) 2 m/s²
D) -2 m/s²
Answer: B
38. Uniform acceleration produces which kind of velocity-time graph?
A) Horizontal line
B) Upward sloping straight line
C) Downward sloping curve
D) Oscillating curve
Answer: B
39. If velocity remains constant, acceleration =
A) Positive
B) Negative
C) Zero
D) Infinite
Answer: C
40. The slope of a velocity-time graph gives:
A) Displacement
B) Speed
C) Acceleration
D) Distance
Answer: C
Motion Class 9 SEBA MCQ Notes
41. Distance-time graph shows:
A) Speed
B) Acceleration
C) Change in distance with time
D) Velocity
Answer: C
42. Straight line in a distance-time graph means:
A) Uniform motion
B) Non-uniform motion
C) Object at rest
D) Acceleration
Answer: A
43. Curved line in distance-time graph means:
A) Uniform motion
B) Non-uniform motion
C) Rest
D) Constant velocity
Answer: B
44. Horizontal line in distance-time graph shows:
A) Uniform motion
B) Non-uniform motion
C) Object at rest
D) Accelerated motion
Answer: C
45. Velocity-time graph shows:
A) Change in distance
B) Change in velocity
C) Total distance
D) Total time
Answer: B
46. Horizontal line in velocity-time graph indicates:
A) Zero velocity
B) Constant velocity
C) Uniform acceleration
D) Non-uniform acceleration
Answer: B
47. Area under velocity-time graph gives:
A) Speed
B) Acceleration
C) Displacement
D) Force
Answer: C
48. Slanting straight line upward in velocity-time graph indicates:
A) Uniform velocity
B) Uniform acceleration
C) Non-uniform acceleration
D) Object at rest
Answer: B
49. Area of rectangle in velocity-time graph =
A) Acceleration
B) Displacement
C) Velocity
D) Time
Answer: B
50. Object moving in a circle at constant speed has:
A) Zero acceleration
B) Acceleration along tangent
C) Acceleration towards center
D) Negative acceleration only
Answer: C
SEBA Class 9 Science Chapter 8 Multiple Choice Questions
51. Positive acceleration means:
A) Object slowing down
B) Object speeding up
C) Object stationary
D) Object changing direction only
Answer: B
52. Retardation occurs when:
A) Velocity increases
B) Velocity decreases
C) Acceleration is zero
D) Velocity remains constant
Answer: B
53. Speed = Distance ÷ Time is a:
A) Vector formula
B) Scalar formula
C) Both vector and scalar
D) None
Answer: B
54. Velocity includes:
A) Only magnitude
B) Only direction
C) Magnitude and direction
D) None
Answer: C
55. Uniform motion means:
A) Unequal distance in equal intervals of time
B) Equal distance in equal intervals of time
C) Object at rest
D) Non-linear path
Answer: B
56. The walls of your classroom are:
A) Always at rest relative to you
B) Always in motion relative to you
C) At rest relative to Earth but in motion relative to the Sun
D) At rest relative to the Sun
Answer: C
57. Sometimes when a train is at rest, it appears to move because:
A) The train is shaking
B) Your eyes are confused
C) The nearby train or surroundings are moving
D) The train’s engine is running
Answer: C
58. You walk along the sides of a basketball court from one corner to the opposite corner. The distance you cover is:
A) Equal to the displacement
B) Greater than the displacement
C) Less than the displacement
D) Zero
Answer: B
59. The difference between distance and displacement is that:
A) Distance is a vector, displacement is a scalar
B) Distance is scalar, displacement is a vector
C) Both are scalars
D) Both are vectors
Answer: B
60. The device fitted in automobiles that measures the distance travelled is called:
A) Speedometer
B) Odometer
C) Accelerometer
D) Tachometer
Answer: B
Class 9 Science Motion Objective Questions
61. A car travels from Bhubaneshwar to New Delhi. The odometer reads 1850 km. The displacement between the two cities is:
A) Greater than 1850 km
B) Equal to 1850 km
C) Less than 1850 km
D) Zero
Answer: C
62. If your average walking speed is 4 km/h, and it takes 15 minutes to reach your school, the distance to school is:
A) 1 km
B) 2 km
C) 3 km
D) 4 km
Answer: A
63. During a thunderstorm, the thunder is heard after lightning because:
A) Lightning is faster than thunder
B) Sound travels slower than light
C) The storm delays the sound
D) Your ears react slowly
Answer: B
64. If you measure the time interval between seeing lightning and hearing thunder and use the speed of sound v=346 m/sv = 346\ \text{m/s}v=346 m/s, you can calculate:
A) The distance to the lightning
B) The height of the clouds
C) The temperature of air
D) The wind speed
Answer: A
65. Which of the following is an example of acceleration in the direction of motion?
A) A ball rolling down a slope
B) A car slowing down at a red light
C) A satellite in circular orbit
D) A train moving at constant speed
Answer: A
66. Which of the following is an example of acceleration opposite to the direction of motion?
A) A free-falling ball
B) A car applying brakes
C) A stone moving in circular path
D) A bicycle moving on a straight road at uniform speed
Answer: B
67. Uniform acceleration occurs when:
A) Acceleration keeps changing
B) Acceleration remains constant in magnitude and direction
C) Object moves at constant speed
D) Object moves in circular path
Answer: B
68. Non-uniform acceleration occurs when:
A) Acceleration is constant
B) Velocity changes at varying rate
C) Object is at rest
D) Motion is linear
Answer: B
69. In circular motion with constant speed, the acceleration:
A) Is zero
B) Is along the direction of motion
C) Is perpendicular to velocity towards the center
D) Opposes the velocity
Answer: C
70. Feroz and Sania start cycling from the same home but take different times. This indicates:
A) Both have same speed
B) Both cover same distance at same time
C) Their velocities are different
D) Their accelerations are zero
Answer: C
🔬 Updated MCQ Guide Notice: This page features a full collection of SEBA Class 9 Science Chapter 8 (Motion) Multiple Choice Questions (MCQs) with accurate options and detailed explanations, fully updated for the 2026–27 academic session in accordance with the latest revised Assam Board (SEBA) curriculum.
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