Class 9 Physics MCQs for Chapter 8 Motion can be found online, along with their answers. These questions follow the latest exam pattern, CBSE syllabus, and NCERT guidelines. Practicing these multiple-choice questions will help students improve their problem-solving abilities and achieve high scores in board exams.
MCQs on Motion Class 9 Science
Question: What is motion?
a) The change of position of an object with time
b) The color change of an object
c) The size change of an object
d) The shape change of an object
Answer: a) The change of position of an object with time
Question: Which of the following is the unit of speed?
a) m/s
b) kg/m
c) m/s²
d) m³/s
Answer: a) m/s
Question: What does uniform motion mean?
a) Changing speed
b) Changing direction
c) Constant speed
d) Constant acceleration
Answer: c) Constant speed
Question: What is the formula for speed?
a) Speed = Distance × Time
b) Speed = Distance / Time
c) Speed = Time / Distance
d) Speed = Distance + Time
Answer: b) Speed = Distance / Time
Question: What is the unit of distance?
a) Second
b) Meter
c) Kilogram
d) Newton
Answer: b) Meter
Question: If an object moves 100 meters in 20 seconds, what is its speed?
a) 5 m/s
b) 2 m/s
c) 10 m/s
d) 20 m/s
Answer: a) 5 m/s
Question: What is velocity?
a) Speed in a particular direction
b) Speed in all directions
c) Speed without direction
d) Distance per unit time
Answer: a) Speed in a particular direction
Question: Which of the following is a vector quantity?
a) Speed
b) Distance
c) Velocity
d) Mass
Answer: c) Velocity
Question: What is acceleration?
a) Change in speed
b) Change in velocity
c) Change in direction
d) Change in distance
Answer: b) Change in velocity
Question: Which of the following is the unit of acceleration?
a) m/s
b) m/s²
c) m
d) m²/s
Answer: b) m/s²
Question: If an object accelerates from 0 to 20 m/s in 5 seconds, what is its acceleration?
a) 4 m/s²
b) 5 m/s²
c) 6 m/s²
d) 3 m/s²
Answer: a) 4 m/s²
Question: What does the slope of a distance-time graph represent?
a) Speed
b) Distance
c) Time
d) Acceleration
Answer: a) Speed
Question: What does the slope of a velocity-time graph represent?
a) Speed
b) Distance
c) Acceleration
d) Time
Answer: c) Acceleration
Question: What is the acceleration of an object moving at constant velocity?
a) Zero
b) Positive
c) Negative
d) Infinity
Answer: a) Zero
Question: If a car is traveling at 30 m/s and comes to a stop in 10 seconds, what is its acceleration?
a) -3 m/s²
b) -5 m/s²
c) -10 m/s²
d) -2 m/s²
Answer: b) -3 m/s²
Question: What is the unit of displacement?
a) Second
b) Meter
c) Kilogram
d) Newton
Answer: b) Meter
Question: What is the difference between speed and velocity?
a) Speed is a scalar, velocity is a vector
b) Speed is a vector, velocity is a scalar
c) Speed includes direction, velocity does not
d) There is no difference
Answer: a) Speed is a scalar, velocity is a vector
Question: If an object covers equal distances in equal intervals of time, it is said to be in __________.
a) Non-uniform motion
b) Uniform motion
c) Accelerated motion
d) Circular motion
Answer: b) Uniform motion
Question: What is the formula for acceleration?
a) Acceleration = Velocity / Time
b) Acceleration = Time / Velocity
c) Acceleration = Change in velocity / Time
d) Acceleration = Distance / Time
Answer: c) Acceleration = Change in velocity / Time
Question: What does a horizontal line on a distance-time graph indicate?
a) Constant speed
b) Increasing speed
c) Stationary object
d) Decreasing speed
Answer: c) Stationary object
Question: If an object is moving with uniform velocity, what will its acceleration be?
a) Zero
b) Positive
c) Negative
d) Variable
Answer: a) Zero
Question: Which physical quantity is described by the area under the velocity-time graph?
a) Speed
b) Acceleration
c) Distance
d) Displacement
Answer: d) Displacement
Question: What does a steep slope on a distance-time graph indicate?
a) Slow speed
b) Fast speed
c) No motion
d) Uniform motion
Answer: b) Fast speed
Question: If a cyclist is moving at a constant speed of 10 m/s, how far will they travel in 5 seconds?
a) 50 m
b) 100 m
c) 10 m
d) 5 m
Answer: a) 50 m
Question: What kind of motion is described by an object moving in a circular path at constant speed?
a) Uniform motion
b) Non-uniform motion
c) Uniform circular motion
d) Non-uniform circular motion
Answer: c) Uniform circular motion
Question: What is displacement?
a) Total path length traveled
b) Change in position of an object
c) Time taken to cover a distance
d) Speed in a particular direction
Answer: b) Change in position of an object
Question: Which quantity is described by both magnitude and direction?
a) Speed
b) Distance
c) Scalar
d) Vector
Answer: d) Vector
Question: A car accelerates from rest to 60 km/h in 10 seconds. What is its average acceleration?
a) 6 km/h²
b) 10 km/h²
c) 3 km/h²
d) 60 km/h²
Answer: c) 3 km/h²
Question: What is the unit of velocity?
a) m/s²
b) m/s
c) km
d) s/m
Answer: b) m/s
Question: Which of the following represents non-uniform motion?
a) Constant speed
b) Increasing speed
c) Decreasing speed
d) Both b and c
Answer: d) Both b and c
Question: If a train travels 120 km in 2 hours, what is its average speed?
a) 60 km/h
b) 120 km/h
c) 240 km/h
d) 30 km/h
Answer: a) 60 km/h
Question: What does a curved line on a distance-time graph indicate?
a) Uniform motion
b) Non-uniform motion
c) No motion
d) Constant speed
Answer: b) Non-uniform motion
Question: An object covers 80 meters in 4 seconds. What is its speed?
a) 10 m/s
b) 20 m/s
c) 40 m/s
d) 5 m/s
Answer: a) 20 m/s
Question: Which of the following is not a unit of speed?
a) m/s
b) km/h
c) m/s²
d) m/min
Answer: c) m/s²
Question: If an object is decelerating, what will be the sign of its acceleration?
a) Positive
b) Negative
c) Zero
d) Variable
Answer: b) Negative
Question: Which physical quantity can be zero even when an object is moving?
a) Speed
b) Distance
c) Displacement
d) Velocity
Answer: c) Displacement
Question: What is the initial velocity of an object starting from rest?
a) 1 m/s
b) 5 m/s
c) 0 m/s
d) 10 m/s
Answer: c) 0 m/s
Question: Which term describes the total length of the path traveled by an object?
a) Speed
b) Displacement
c) Distance
d) Velocity
Answer: c) Distance
Question: What does the term ‘deceleration’ mean?
a) Increase in speed
b) Decrease in speed
c) Constant speed
d) Zero speed
Answer: b) Decrease in speed
Question: In which type of motion is the speed constant but direction changes?
a) Linear motion
b) Uniform motion
c) Circular motion
d) Non-uniform motion
Answer: c) Circular motion
Question: An object travels 15 meters north and then 20 meters south. What is its displacement?
a) 5 meters
b) 35 meters
c) 15 meters
d) 20 meters
Answer: a) 5 meters
Question: If a car’s speedometer reads a constant speed, what kind of motion is it in?
a) Non-uniform motion
b) Accelerated motion
c) Uniform motion
d) Stationary
Answer: c) Uniform motion
Question: A ball is thrown upwards and then comes down. What is the direction of its acceleration?
a) Upwards
b) Downwards
c) Horizontal
d) None of the above
Answer: b) Downwards
Question: Which of the following is a scalar quantity?
a) Velocity
b) Displacement
c) Acceleration
d) Speed
Answer: d) Speed
Question: If an object moves with a constant speed in a straight line, what is its acceleration?
a) Zero
b) Positive
c) Negative
d) Constant
Answer: a) Zero
Question: Which of the following graphs shows an object moving with uniform acceleration?
a) A straight line in distance-time graph
b) A curved line in distance-time graph
c) A straight line in velocity-time graph
d) A horizontal line in velocity-time graph
Answer: c) A straight line in velocity-time graph
Question: If an object is slowing down, what kind of acceleration does it have?
a) Positive acceleration
b) Negative acceleration
c) Zero acceleration
d) Infinite acceleration
Answer: b) Negative acceleration
Question: A car travels 60 km north and then 80 km east. What is the total distance covered?
a) 20 km
b) 140 km
c) 60 km
d) 80 km
Answer: b) 140 km
Question: What is the term for the rate of change of displacement?
a) Speed
b) Velocity
c) Acceleration
d) Distance
Answer: b) Velocity
Question: Which factor does not affect the motion of an object?
a) Speed
b) Mass
c) Color
d) Direction
Answer: c) Color
