MCQ Questions | Class 9 Science Chapter 8 | Motion with Answers

MCQ | Motion Class 9 | Part-2

Check the below NCERT MCQ Questions for Class 9 Science Chapter 8 Motion with Answers Pdf free download. MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern. We have Provided Motion Class 9 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | NCERT Science Class 9

NCERT Solutions Class 9 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	9th
Subject:	Science
Chapter:	8 ( Part-2 )
Chapters Name:	Motion
Medium:	English

Ncert Solutions for Class 9 Science | Objective Type Questions

You can refer to NCERT Solutions for Class 9 Science Chapter 8 Motion to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Motion | Class 9 Science | NCERT Solutions

Q1.	Which of the following is the example of uniform motion.
	A.Zig-zag motion of butterfly
	B.Motion of aero plane before take off
	C.Motion of periods of soldiers.
	D.Motion of fan after switch off.

Ans: Motion of periods of soldiers.

Q2.	A bus is moving with speed of 10 m/s. How much time required to stop that bus if driver decelerate it at the rate of 2 m/s².
	A.5 seconds
	B.10 seconds
	C.4 seconds
	D.8 seconds

Ans: 5 seconds

Q3.	If you throw a ball in upward direction then the value of g will be…
	A.Positive
	B.Negative
	C.We can not say
	D.It is not fixed

Ans: Positive

Q4.	The area under the speed-time graph gives the ________.
	A. velocity
	B. distance
	C. acceleration
	D. time

Ans: distance

Q5.	1 km/ h = ________ m/s
	A. 3/50
	B. 18/5
	C. 50/3
	D. 5/18

Ans: 5/18

Q6.	The ratio of the heights from which two bodies are dropped is 3:5 respectively. The ratio of their final velocities is:
	A. 9: 25
	B. √ 3: √ 5
	C. 5 : 3
	D. √5 : √3

Ans: √ 3: √ 5

Q7.	The speed at any instant of time is known as
	A. velocity
	B. given speed
	C. average speed
	D. instantaneous speed

Ans: instantaneous speed

Q8.	A racing car has a uniform acceleration of 6 m/s2. In 10s it will cover:
	A. 300m
	B. 100m
	C. 200m
	D. 350m

Ans: 300m

Q9.	A body starts to slide over a horizontal surface with an initial velocity of 0.2 m/s. Due to friction, its velocity decreases at the rate of 0.02 m/s2. How much time will it take for the body to stop?
	A. 10s
	B. 15s
	C. 1s
	D. 5s

Ans: 10s

Q10.	The equations of motion can be derived by using:
	A. Distance – time graph
	B. Velocity – time graph for non-uniform acceleration
	C. Displacement time graph
	D. Velocity – time graph for uniform acceleration

Ans: Velocity – time graph for uniform acceleration

Q11.	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

Ans: 19 m

Q12.	Speed of a body in particular direction can be called
	A. acceleration
	B. displacement
	C. velocity
	D. distance

Ans: velocity

Q13.	The ratio of C.G.S. to M.K.S. unit of acceleration is:
	A. 1:10
	B. 1:1
	C. 1:100
	D. 10:1

Ans: 1:100

Q14.	Distance covered by a body from velocity-time graph is
	A. Equal to the slope of the graph.
	B. Area under 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.

Ans: Area under the graph .

Q15.	A body performs an accelerated motion, with uniform speed. The motion of body is
	A. Linear
	B. Circular
	C. Parabolic
	D. Irregular

Ans: Circular

Q16.	The slope of distance – time graph gives instantaneous.
	A. acceleration
	B. speed
	C. velocity
	D. Distance covered

Ans: speed

Q17.	______________ 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

Ans: speed, velocity

Q18.	If a moving body comes to rest, then its acceleration is-
	A. positive
	B. both of these depending upon the initial velocity
	C. negative
	D. zero

Ans: negative

Q19.	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

Ans: 50 km/h

Q20.	Speed of 90 km/h when expressed in m/s is
	A.2.5
	B.90000
	C.250
	D.25

Ans: 25

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