Loading [MathJax]/extensions/MathMenu.js

MCQ Questions | Class 9 Science Chapter 9

MCQ Questions | Class 9 Science Chapter 9 | Force and Laws of Motion with Answers 

MCQ Questions for Class9 Science Chapter 9 Force and Laws of Motion

MCQ | Force and Laws of Motion Class 9 | Part-1

Check the below NCERT MCQ Questions for Class 9 Science Chapter 9 Force and Laws of 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 Force and Laws of 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: 9 ( Part-1 )
Chapters Name: Force and Laws of Motion
Medium: English

Ncert Solutions for Class 9 Science | Objective Type Questions


You can refer to NCERT Solutions for Class 9 Science Chapter 9 Force and Laws of Motion to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.
Force and Laws of Motion | Class 9 Science | NCERT Solutions
Q1. A plate, a ball and a child all have the same mass. The one having more inertia is the
A. plate
B. ball
C. child
D. All have equal inertia
Ans: All have equal inertia
Q2. 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 the state of rest or of motion
D. to decelerate due to friction
Ans: to resist any change in the state of rest or of motion
Q3.   The rate of change of momentum with respect to time is measured in
A. kg ms-2
B. kg ms-1
C. kg m
D. kg
Ans: kg ms-2
Q4. When unbalanced forces act on a body, the body:
A. Must move with uniform velocity
B. Must remain at rest
C. Must experience acceleration
D. Must move in a curved path
Ans: Must experience acceleration
Q5. A man throws a ball weighing 200 g vertically upwards with a speed of 10m/s. Its momentum at the highest point of its flight will be:
A. 2 kg. m/s
B. 2000 kg.m/s
C. Insufficient data to find the momentum.
D. zero
Ans: zero
Q6. Quantitative expression of force is given by:
A. Newton’s second law of motion.
B. Newton’s third law of motion.
C. Newton’s first law of motion.
D. Newton’s law of gravitation.
Ans: Newton’s second law of motion.
Q7. Find the time taken by a body of mass 16 kg to come to rest from a uniform velocity of magnitude 10 m/s, when a force of 4N is applied continously
A. 20 s
B. 30 s
C. 40 s
D. 50 s
Ans: 40 s
Q8.   The S.I. unit of force is
A. Newton-metre
B. Newton
C. Newton per second
D. Newton per square metre
Ans: Newton
Q9. A force of ‘P* N acts on a particle so as to accelerate it from rest to a velocity 'v' m/s. The force 'P’ is then replaced by ‘Q’ N which decelerates it to rest.
A. P may be equal to Q 
B. P must be equal to Q
C. P must be unequal to Q
D. none of these
Ans: P may be equal to Q 
Q10. If the force acting on the body is zero. Its momentum is:
A. Zero
B. Constant
C. Infinite
D. None of the above
Ans: Constant
Q11. —- is responsible for change in magnitude of speed.
A.Momentum
B.Force
C.Inertia
D.Kinetic energy.
Ans: Force
Q12. In the absence of external force the velocity —–.
A.Remains constant.
B.Vanishes.
C.Changes continuously.
D.None of these.
Ans: Remains constant.
Q13. Newton’s first law introduces the concept of —-.
A.Momentum
B.Inertia
C.Conservation of energy.
D.Action and reaction.
Ans: Inertia
Q14. Newton’s first law introduces the concept of —-.
A.Momentum
B.Inertia
C.Conservation of energy.
D.Action and reaction.
Ans: Momentum
Q15. State of rest and state of motions are—_
A.Equal
B.Unequal
C.None of these
D.Can not say.
Ans: Equal
Q16. Which object has greater inertia.
A.Rubber ball
B.Gas cylinder
C.Bicycle
D.Truck
Ans: Truck
Q17. Momentum of the object is depend on.
A.Mass
B.Velocity
C.Mass and velocity
D.Force.
Ans: Mass and velocity
Q18. When a force is exerted on an object, it can change its:
A. State
B. Position
C. Shape
D. All the above
Ans: All the above
Q19. What force can change the velocity of a body of mass 1kg from 20 m/s to 30m/s in 2 seconds?
A. 10 N
B. 15 N
C. 5 N
D. 25 N
Ans: 5 N
Q20. One way that you can recognize that a force is acting on an object:
A. is to note any change in the objects state of motion.
B. is to determine its mass at different locations.
C. is to measure the instantaneous velocity of a moving object.
D. A and C
Ans: is to note any change in the objects state of motion.

CBSE Solutions | Ncert Solutions Science Class 9


NCERT Solutions | MCQ Class 9 Science


NCERT | Class 9 Science Solutions

MCQ Questions for Class 9 Science in English Medium

MCQ Questions for Class 9 Science Chemistry with Answers

MCQ Questions for Class 9 Science Biology with Answers

MCQ Questions for Class 9 Science Physics with Answers

MCQ Questions for Class 9 Science Biology with Answers

NCERT SOLUTIONS

Tags:

Post a Comment

इस पेज / वेबसाइट की त्रुटियों / गलतियों को यहाँ दर्ज कीजिये
(Errors/mistakes on this page/website enter here)

Post a Comment

इस पेज / वेबसाइट की त्रुटियों / गलतियों को यहाँ दर्ज कीजिये
(Errors/mistakes on this page/website enter here)

Previous Post Next Post