Refer to CBSE Class 9 Science Motion MCQs provided below. CBSE Class 9 Science MCQs with answers available in Pdf for free download. The MCQ Questions for Class 9 Science with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 9 by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 8 Motion are an important part of exams for Class 9 Science and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 9 Science and also download more latest study material for all subjects
MCQ for Class 9 Science Chapter 8 Motion
Class 9 Science students should refer to the following multiple-choice questions with answers for Chapter 8 Motion in Class 9. These MCQ questions with answers for Class 9 Science will come in exams and help you to score good marks
Chapter 8 Motion MCQ Questions Class 9 Science with Answers
Question: From the given v-t graph (figure) it can be inferred that the object is moving with
(a) uniform velocity
(b) non uniform velocity
(c) At rest
(d) moving with uniform acceleration
Answer: A
Question: What does the slope of distance - time graph give?
(a) acceleration
(b) both[a] and [c] depending upon the time of graph
(c) Speed
(d) uniform speed
Answer: A
Question: In the total journey the body has travelled up to a distance of
(a) 900m
(b) 800m
(c) 1000m
(d) 270m
Answer: D
Question: The velocity of the body at the point B is
(a) 40m/s
(b) 20m/s
(c) 36m/s
(d) 50m/s
Answer: C
Question: At the point A the body is at a distance of
(a) 180m
(b) 200m
(c) 300m
(d) 50m
Answer: A
Question: Distance covered by the body during the interval from 10sec to 20 sec is
(a) 270m
(b) 200m
(c) 360m
(d) 400m
Answer: A
Question: From the figure the body is moving with
(a) Zero Acceleration
(b) Zero velocity
(c) Variable Acceleration
(d) Constant Acceleration
Answer: D
Question: Distance covered by a body from velocity-time graph is
(a) Area under the graph
(b) Equal to the slope of the graph
(c) Is denoted by a line parallel to the time axis at any point on the distance axis
(d) Is denoted by a line parallel to the distance axis at any point on the time axis
Answer: A
Question: The acceleration of a body from a velocity - time graph is
(a) Area under the graph
(b) Equal to the slope of the graph
(c) Is denoted by a line parallel to the time axis at any point on the distance axis
(d) Is denoted by a line parallel to the distance axis at any point on the time axis
Answer: B
Question: An example of a body moving with constant speed but still accelerating is
(a) A body moving in a helical path with constant speed
(b) A body moving with constant speed on a straight road
(c) A body moving with constant speed in a circular path
(d) A body moving with constant speed on a straight railway track
Answer: C
Question: SI Unit of measurement of acceleration is
(a) m/s2
(b) m/s
(c) M
(d) m/hr
Answer: A
Question: Formula to find the average velocity of a body is given by
(a) Vav=(u + v)/2
(b) Sn ={u + a/2(2n-1)}
(c) S= ut + 1/2 a t2
(d) V= u + at
Answer: A
Question: An object travels 20m in 5 sec and then another 40m in 5 se What is the average speed of the object?
(a) 2m/s
(b) 0 m/s
(c) 12m/s
(d) 6m/s
Answer: D
Question: A farmer moves along the boundary of a square field of side 10 m in 40 sec. The magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position is
(a) 10 `sqrt(2m)`
(b) 30m
(c) 10m
(d) 40m
Answer: A
Question: A man travels a distance of 20 km from his home to office, and 10 km towards his house back. Then the displacement covered by the man in the whole trip is
(a) 30 Km
(b) 10 Km
(c) zero Km
(d) 50 Km
Answer: B
Question: Acceleration is a vector quantity, which indicates that its value
(a) Can be positive, negative or zero
(b) Is always positive
(c) Is always negative
(d) Is zero
Answer: A
Question: Rate of change of displacement is called
(a) Velocity
(b) deceleration
(c) Speed
(d) acceleration
Answer: A
Question. 180° plane angle is equal to
(a) π/2 radian
(b) π radian
(c) 2π radian
(d) none of these
Answer: B
Question. Suppose a boy is enjoying a ride on a marry-go-round which is moving with a constant speed of 10 m/s. It implies that the boy is:
(a) At rest
(b) Moving with no acceleration
(c) In accelerated motion
(d) Moving with uniform velocity
Answer: C
Question. 1 km/ h = ________ m/s
(a) 3/50
(b) 18/5
(c) 50/3
(d) 5/18
Answer: D
Question. Which of the following statement is correct regarding velocity and speed of a moving body?
(a) Velocity of a moving body is always higher than its speed
(b) Speed of a moving body is always higher than its velocity
(c) Speed of a moving body is its velocity in a given direction
(d) Velocity of a moving body is its speed in a given direction
Answer: D
Question. If car A is at 40 km/h and car B is at 10 km/h in the opposite direction, what is the velocity of the car A relative to the car B?
(a) 40 km/h
(b) 50 km/h
(c) 10 km/h
(d) 30 km/h
Answer: B
Question. Which of the following is most likely not a case of uniform circular motion?
(a) Motion of the earth around the sun
(b) Motion of a toy train on a circular track
(c) Motion of a racing car on a circular track
(d) Motion of hours’ hand on the dial of a clock
Answer: C
Question. A man is moving with 36 kmph. The time of reaction is 0.9 seconds. On seeing an obstacle in the path, he applies brakes and decelerates at 5 m/s2, the total distance covered before he stops is:
(a) 19 m
(b) 17 m
(c) 16 m
(d) 18 m
Answer: A
Question. The numerical ratio of displacement to distance for a moving object is:
(a) Always less than 1
(b) Equal to 1 or less than 1
(c) Always more than 1
(d) Equal to 1 or more than one
Answer: B
Question. A car goes from a town A to another town B with a speed of 40 km/h and returns back to the town A with a speed of 60 km/h. The average speed of the car during the complete journey is -
(a) 48 km/h
(b) 50 km/h
(c) zero
(d) none of these.
Answer: A
Question.______________ describes how fast something is going, whereas, __________ describes how fast something is going in a certain direction.
(a) rate, velocity
(b) rate, speed
(c) speed, velocity
(d) speed, acceleration
Answer: C
Question. Which of the following is a correct measure of velocity?
(a) 30 s
(b) 30 m/s
(c) 30 South
(d) 30 m/s, South
Answer: D
Question. The speed at any instant of time is known as
(a) velocity
(b) given speed
(c) average speed
(d) instantaneous speed
Answer: D
Question. The slope of the distance-time graph is:
(a) Distance
(b) acceleration
(c) Speed
(d) Displacement
Answer: C
Question. In 12 minutes a car whose speed is 35 km/h travels a distance of
(a) 7 km
(b) 3.5 km
(c) 14 km
(d) 28 km
Answer: A
Question. A body moves in a uniform circular motion
(a) it is moving with constant velocity.
(b) its acceleration is zero
(c) the body has an acceleration
(d) none of these
Answer: C
Question. A body whose speed is constant
(a) must be accelerated
(b) might be accelerated
(c) has a constant velocity
(d) can not be accelerated.
Answer: B
Question. The S.I. unit of acceleration is:
(a) ms-2
(b) ms
(c) ms2
(d) m
Answer: C
Question. A particle experiences constant acceleration for 20 seconds after starting from rest. If it travels a distance s1 in the first 10 seconds and distance s2 in the next 10 seconds then,
(a) s2 = s1
(b) s2 = 2s1
(c) s2 = 3s1
(d) s2 = 4s1
Answer: C
Question. A boy throws a ball up and catches it when the ball falls back. In which part of the motion the ball is accelerating?
(a) During downward motion
(b) When the ball comes to rest
(c) During upward motion
(d) When the boy catches the ball
Answer: A
Question. Speed of a body in particular direction can be called
(a) acceleration
(b) displacement
(c) velocity
(d) distance
Answer: C
Question. A body performs an accelerated motion, with uniform speed. The motion of body is
(a) Linear
(b) Circular
(c) Parabolic
(d) Irregular
Answer: B
Question. Choose the correct option:
(a) distance is a scalar, velocity is a vector , acceleration is a vector.
(b) distance is a vector, velocity is a scalar, acceleration is a vector.
(c) distance is a vector, velocity is a vector, acceleration is a vector.
(d) distance is a scalar, velocity is a vector, acceleration is a scalar.
Answer: A
Question: m/s2 is the SI unit of -
(a) distance
(b) displacement
(c) velocity
(d) acceleration
Answer : D
Question. A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is____________
(a) u/g
(b) u2/2g
(c) u2/g
(d) u/2g
Answer : B
Question. A car is travelling at a speed of 90 km/h. Brakes are applied so as to produce a uniform acceleration of – 0.5 m/s2. Find how far the car will go before it is brought to rest?
(a) 8100 m
(b) 900 m
(c) 625 m
(d) 620 m
Answer : C
Question. Speed of 90 km/h when expressed in m/s is
(a) 2.5
(b) 90000
(c) 250
(d) 25
Answer : D
Question: The distance covered in time t by a body having initial velocity u and having a uniform acceleration a is given by s = ut + ½ at2. This result follows from -
(a) Newton’s first law
(b) Newton’s second law
(c) Newton’s third law
(d) None of these.
Answer : D
Question. Name the instrument used to measure instantaneous speed of a vehicle
(a) multimeter
(b) ammeter
(c) speedometer
(d) accelerator
Answer : C
Question. Area under a v – t graph represents a physical quantity which has the unit
(a) m2
(b) m
(c) m3
(d) m s–1
Answer : B
Question. An object travels 20 m in 5 sec and then another 40 m in 5 sec. What is the average speed of the object?
(a) 6 m/s
(b) 2 m/s
(c) 12 m/s
(d) 0 m/s
Answer : A
Question. When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then the retardation will be:
(a) + 2 m/s2
(b) − 2 m/s2
(c) − 0.5 m/s2
(d) + 0.5 m/s2
Answer : D
Question. The slope of distance – time graph gives instantaneous.
(a) acceleration
(b) speed
(c) velocity
(d) Distance covered
Answer : B
Question: A body moving along a straight line at 20 m/s undergoes an acceleration of -4 m/s2. After two seconds its speed will be -
(a) -8 m/s
(b) 12 m/s
(c) 16 m/s
(d) 28 m/s.
Answer : B
Question. The Rate of change of displacement is called_________
(a) Velocity
(b) Deceleration
(c) Acceleration
(d) Speed
Answer : A
Question: a particle moves with uniform positive acceleration. Its velocity-time graph will be
(a) a straight line parallel to the time axis
(b) a straight line inclined at an obtuse angle to the time axis
(c) a straight line inclined at an acute angle to the time axis
(d) none of these.
Answer : C
Question: A person travels distance πR along the circumference of a circle of radius R. Displacement of the person is
(a) R
(b) 2R
(c) 2πR
(d) zero
Answer : B
Question. The speed at any instant of time is known as
(a) velocity
(b) given speed
(c) average speed
(d) instantaneous speed
Answer : D
Question. Which of the following situations are not possible?
(a) A body moving with constant acceleration but with zero velocity.
(b) A body moving horizontally with an acceleration in vertical direction
(c) A body moving with a constant velocity in an accelerated motion
(d) All of these
Answer : C
Question. Which of the following statement is correct regarding velocity and speed of a moving body?
(a) Velocity of a moving body is always higher than its speed
(b) Speed of a moving body is always higher than its velocity
(c) Speed of a moving body is its velocity in a given direction
(d) Velocity of a moving body is its speed in a given direction
Answer : D
Question. A man is moving with 36 kmph. The time of reaction is 0.9 seconds. On seeing an obstacle in the path, he applies brakes and decelerates at 5 m/s2, the total distance covered before he stops is:
(a) 19 m
(b) 17 m
(c) 16 m
(d) 18 m
Answer : A
Question. An object moves along a curved path. The following quantities may remain constant during its motion.
(a) speed
(b) velocity
(c) magnitude of acceleration
(d) Both 'a' and 'c'
Answer : D
Question. Suppose a boy is enjoying a ride on a marry-go-round which is moving with a constant speed of 10 m/s. It implies that the boy is:
(a) At rest
(b) Moving with no acceleration
(c) In accelerated motion
(d) Moving with uniform velocity
Answer : C
Question. A particle is moving in a circular path of radius r. The displacement after half a circle would be_______
(a) Zero
(b) π r
(c) 2 r
(d) 2π r
Answer : C
Question. If the displacement of an object is proportional to square of time, then the object moves with________
(a) uniform velocity
(b) uniform acceleration
(c) increasing acceleration
(d) decreasing acceleration
Answer : B
Question. Area under a v – t graph represents a physical quantity which has the unit
(a) m2
(b) m
(c) m3
(d) m s–1
Answer : B
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