Last Updated on May 18, 2025 by XAM CONTENT
Hello students, we are providing case study questions for class 11 Physics. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 11 Physics. In this article, you will find case study questions for cbse class 11 Physics chapter 4 Laws of Motion.
| Chapter | Laws of Motion |
| Type of Questions | Case Study Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 11 |
| Subject | Physics |
| Useful for | Class 11 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 11 Physics Chapterwise Case Study |
Case Study Questions on Laws of Motion
Case Study Question 1:
Passage:
A wooden block of mass 5 kg is placed on a rough inclined plane at 30° to the horizontal. The coefficient of static friction between the block and the plane is 0.4. A student needs to find whether the block will slide or stay at rest, and if it moves, with what acceleration.
Q1. What is the force acting down the incline due to gravity?
(a) $5 g \sin 30^{\circ}$
(b) $5 g \cos 30^{\circ}$
(c) $5 \times 0.4$
(d) $5 \mathrm{~g} \tan 30^{\circ}$
Q2. What is the maximum static friction acting on the block?
(a) $\mu m g \cos \theta$
(b) $\mu m g \sin \theta$
(c) $m g \tan \theta$
(d) $\mu m g \tan \theta$
Q3. Will the block start sliding?
(a) Yes, because friction is zero
(b) Yes, because component of gravity exceeds friction
(c) No, because static friction is greater than component of gravity
(d) Cannot be determined
Q4. If the block moves, what will be the net force acting down the incline?
(a) $m g \sin \theta-f_k$
(b) $m g-f_k$
(c) $f_k-m g \sin \theta$
(d) $m g \cos \theta-f_k$
Answers:
Q1. (a)
Q2. (a)
Q3. (b)
Q4. (a)
Case Study Question 2:
Passage:
Two blocks of mass 6 kg and 4 kg are connected by a light string passing over a frictionless pulley. The system is released from rest. Students are to calculate the acceleration of the system and the tension in the string using Newton’s second law.
Q1. Which body will accelerate downward?
(a) 4 kg block
(b) 6 kg block
(c) Both move up
(d) Both remain at rest
Q2. What is the net force on the system?
(a) $6 g+4 g$
(b) $(6-4) g$
(c) $(6+4) g$
(d) $(4-6) g$
Q3. What is the acceleration of the system?
(a) $\frac{6 g-4 g}{6+4}$
(b) $\frac{6 g+4 g}{2}$
(c) $g$
(d) $\frac{4 g}{6}$
Q4. The tension in the string is closest to:
(a) 40 N
(b) 50 N
(c) 60 N
(d) 80 N
Answers:
Q1. (b)
Q2. (b)
Q3. $\frac{2 g}{10}=\frac{g}{5} \Rightarrow(\mathrm{a})$
Q4. $T=4 g+4 a=4 \times 10+4 \times 2=48 \mathrm{~N} \approx(\mathrm{~b})$
We hope the given case study questions for Laws of Motion Class 11 helps you in your learning.
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Topics from which case study questions may be asked
- Newton’s laws of motion
- Inertia and mass
- Impulse
- Law of conservation of momentum
Newton’s Third Law — For every action, there is an equal and opposite reaction — explains many real-life phenomena.
For further practice on case study questions related to Laws of Motion Class 11 Physics, we recommend exploring the link given below.
Frequently Asked Questions (FAQs) on Laws of Motion Case Study Questions
Q1: What are case study questions in Laws of Motion?
A1: Case study questions in Laws of Motion test your ability to apply concepts in real-life scenarios.
Q2: Are these questions asked in board exams?
A2: Yes, CBSE has started including case study/competency-based questions in final exams.
Q3: How should I prepare for case study questions?
A3: Focus on understanding concepts and practicing application-based problems.
Q4: Are answers provided for Class 11 Physics Laws of Motion case study questions?
A4: Yes, detailed answers are provided for all questions.
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