I am sure you might have gone through the Motion chapter properly. Lets have a look at some of the top MCQ questions that will help you to revise the chapter properly. I am sure you might have gone through the numerical questions too. If not, we have solved examples for the motion chapter.
30 MCQ Questions for Class 9 Science: Chapter 7 Motion
Question 1. An object moves along a straight path from point A to B, then back to point C. If the distance from A to B is 20 meters and B to C is 10 meters, what is the total distance covered by the object?
a) 10 meters
b) 20 meters
c) 30 meters
d) 40 meters
Answer:
c) 30 meters
Question 2. What is the average speed of an object that covers a distance of 50 meters in 25 seconds?
a) 0.5 m/s
b) 1 m/s
c) 2 m/s
d) 2.5 m/s
Answer:
c) 2 m/s
Question 3. If a car travels a distance of 120 km in 2 hours, what is its average speed?
a) 40 km/h
b) 60 km/h
c) 80 km/h
d) 120 km/h
Answer:
b) 60 km/h
Question 4. What is the SI unit of speed?
a) Meter (m)
b) Second (s)
c) Meter per second (m/s)
d) Kilometer per hour (km/h)
Answer:
c) Meter per second (m/s)
Question 5. If a body covers equal distances in equal intervals of time, it is said to be in:
a) Uniform motion
b) Non-uniform motion
c) Accelerated motion
d) Circular motion
Answer:
a) Uniform motion
Question 6. What is the velocity of an object if it travels 15 meters to the east in 3 seconds?
a) 3 m/s east
b) 5 m/s east
c) 5 m/s west
d) 15 m/s east
Answer:
b) 5 m/s east
Question 7. A train moving with a uniform velocity covers a distance of 150 meters in 5 seconds. What is its velocity?
a) 25 m/s
b) 30 m/s
c) 750 m/s
d) 1500 m/s
Answer:
a) 30 m/s
Question 8. If a car accelerates uniformly from 18 km/h to 36 km/h in 5 seconds, what is its acceleration?
a) 1 m/s²
b) 3.6 m/s²
c) 18 m/s²
d) 5 m/s²
Answer:
a) 1 m/s²
Question 9. The rate of change of velocity is known as:
a) Speed
b) Displacement
c) Acceleration
d) Momentum
Answer:
c) Acceleration
Question 10. A ball is gently dropped from a height of 20 meters. If the velocity of the ball increases uniformly at the rate of 10 m/s², what will be the velocity of the ball when it strikes the ground?
a) 10 m/s
b) 20 m/s
c) 40 m/s
d) 200 m/s
Answer:
b) 20 m/s
Question 11. What does the slope of a distance-time graph represent?
a) Acceleration
b) Velocity
c) Displacement
d) Time taken
Answer:
b) Velocity
Question 12. A car changes its velocity from 30 m/s to 40 m/s in 5 seconds. What is its acceleration?
a) 2 m/s²
b) 5 m/s²
c) 10 m/s²
d) 0.2 m/s²
Answer:
a) 2 m/s²
Question 13. The area under a velocity-time graph represents:
a) Time taken
b) Acceleration
c) Distance covered
d) Speed
Answer:
c) Distance covered
Question 14. What kind of motion does a body undergo if it moves with a constant speed in a circular path?
a) Non-uniform motion
b) Uniform motion
c) Accelerated motion
d) Decelerated motion
Answer:
c) Accelerated motion
Question 15. If a body is moving in a certain direction with an acceleration in the perpendicular direction, then:
a) Its speed remains constant
b) Its velocity remains constant
c) Its direction of motion changes
d) Its motion is non-uniform
Answer:
c) Its direction of motion changes
Question 16. A bus decreases its speed from 60 km/h to 40 km/h in 5 seconds. The acceleration of the bus is:
a) 4 m/s²
b) -1 m/s²
c) -4 m/s²
d) 1 m/s²
Answer:
b) -1 m/s²
Question 17. An object is in uniform acceleration if:
a) Its velocity decreases uniformly
b) Its velocity increases uniformly
c) Its speed remains constant
d) Both a and b
Answer:
d) Both a and b
Question 18. The speed of a train is 90 km/h. If brakes are applied to produce a uniform acceleration of -0.5 m/s², the distance it travels before coming to rest is:
a) 312.5 meters
b) 625 meters
c) 1250 meters
d) 2500 meters
Answer:
b) 625 meters
Question 19. A stone is thrown vertically upwards with a velocity of 5 m/s. If the acceleration due to gravity is 10 m/s² downwards, the maximum height attained by the stone is:
a) 1.25 meters
b) 2.5 meters
c) 5 meters
d) 10 meters
Answer:
a) 1.25 meters
Question 20. A bus starting from rest moves with a uniform acceleration of 0.1 m/s² for 2 minutes. The speed acquired by the bus is:
a) 12 m/s
b) 6 m/s
c) 0.2 m/s
d) 1.2 m/s
Answer:
b) 12 m/s
Question 21. The SI unit of velocity is __________.
Fill in the blank.
Answer:
Meter per second (m/s)
Question 22. When an object moves in a circular path, it undergoes __________ motion.
Fill in the blank.
Answer:
Uniform circular
Question 23. The rate of change of displacement is known as __________.
Fill in the blank.
Answer:
Velocity
Question 24. The slope of a speed-time graph gives __________.
Fill in the blank.
Answer:
Acceleration
Question 25. In uniform linear motion, the velocity of an object __________ over time.
Fill in the blank.
Answer:
Remains constant
Question 26. Acceleration can occur due to a change in speed or direction of motion.
True / False
Answer:
True
Question 27. The displacement of an object can be negative.
True / False
Answer:
True
Question 28. The average velocity of an object can be zero even if it is continuously moving.
True / False
Answer:
True
Question 29. If the acceleration of an object is zero, it means the object is not moving.
True / False
Answer:
False
Question 30. The area under a velocity-time graph represents the distance covered by the object.
True / False
Answer:
True
Question on Match the Columns
Unmatched Columns – Questions
| Column A | Column B |
|---|---|
| (i) Uniform motion | (a) Change in velocity per unit time |
| (ii) Non-uniform motion | (b) Object covers equal distances in equal intervals of time |
| (iii) Distance | (c) Total path length an object travels |
| (iv) Displacement | (d) Speed with a specified direction |
| (v) Velocity | (e) Object covers unequal distances in equal intervals of time |
| (vi) Acceleration | (f) Shortest path between initial and final positions |
Matched Columns – Answer
| Column A | Column B |
|---|---|
| (i) Uniform motion | (b) Object covers equal distances in equal intervals of time |
| (ii) Non-uniform motion | (e) Object covers unequal distances in equal intervals of time |
| (iii) Distance | (c) Total path length an object travels |
| (iv) Displacement | (f) Shortest path between initial and final positions |
| (v) Velocity | (d) Speed with a specified direction |
| (vi) Acceleration | (a) Change in velocity per unit time |
MCQ questions from Exemplar Problems
Question 1. Which of the following statement is not correct for an object moving along a straight path in an accelerated motion?
a) Its speed keeps changing
b) Its velocity always changes
c) It always goes away from the earth
d) A force is always acting on it
Answer:
c) It always goes away from the earth
Question 2. According to the third law of motion, action and reaction
a) always act on the same body
b) always act on different bodies in opposite directions
c) have same magnitude and directions
d) act on either body at normal to each other
Answer:
b) always act on different bodies in opposite directions
Question 3. A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goal keeper to
a) exert larger force on the ball
b) reduce the force exerted by the ball on hands
c) increase the rate of change of momentum
d) decrease the rate of change of momentum
Answer:
b) reduce the force exerted by the ball on hands — Pulling hands backward increases stopping time, so average force decreases.
Question 4. The inertia of an object tends to cause the object
a) to increase its speed
b) to decrease its speed
c) to resist any change in its state of motion
d) to decelerate due to friction
Answer:
c) to resist any change in its state of motion
Question 5. A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is
a) accelerated
b) uniform
c) retarded
d) along circular tracks
Answer:
a) accelerated — Train moves ahead while coin is in air, so coin lands behind the passenger.
Question 6. An object of mass 2 kg is sliding with a constant velocity of 4 m s⁻¹ on a frictionless horizontal table. The force required to keep the object moving with the same velocity is
a) 32 N
b) 0 N
c) 2 N
d) 8 N
Answer:
b) 0 N — On a frictionless surface, constant velocity means net force is zero.
Question 7. Rocket works on the principle of conservation of
a) mass
b) energy
c) momentum
d) velocity
Answer:
c) momentum
Question 8. A water tanker filled up to 2/3 of its height is moving with a uniform speed. On sudden application of the brake, the water in the tank would
a) move backward
b) move forward
c) be unaffected
d) rise upwards
Answer:
b) move forward — Due to inertia, water tends to keep moving forward when the tanker slows down suddenly.
