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Index: Laws of Motion | Physics Class 11 - NEET PDF Download

1. Introduction

2. The law of inertia

3. Newton’s first law of motion

4. Newton’s second law of motion

5. Newton’s third law of motion

6. Conservation of momentum & Equilibrium of a particle

7. Common forces in mechanics

8. Circular motion

9. Solving problems in mechanics

10. General

11. Past year paper | Doc and test

12. NCERT Textbook and Solutions

13. Tests of the Chapter: Laws of Motion

14. H.C. Verma, D.C. Pandey & Irodov Solutions

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FAQs on Index: Laws of Motion - Physics Class 11 - NEET

1. What are Newton's laws of motion?
Ans. Newton's laws of motion are three fundamental principles that describe the relationship between the motion of an object and the forces acting upon it. The laws are: 1. The law of inertia: An object at rest will remain at rest, and an object in motion will continue moving at a constant velocity unless acted upon by an external force. 2. The law of acceleration: The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. 3. The law of action-reaction: For every action, there is an equal and opposite reaction.
2. How does the law of inertia relate to Newton's laws of motion?
Ans. The law of inertia is the first law of motion stated by Newton. It states that an object at rest will remain at rest, and an object in motion will continue moving at a constant velocity unless acted upon by an external force. This law is closely related to the concept of inertia, which is the tendency of an object to resist changes in its state of motion. Inertia is a fundamental property of matter and is the basis for understanding the other two laws of motion.
3. Can you explain the relationship between force and acceleration according to Newton's second law of motion?
Ans. According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically, this can be expressed as F = ma, where F represents the net force applied to the object, m represents its mass, and a represents the resulting acceleration. This means that the greater the force applied to an object, the greater its acceleration will be, and the greater the mass of an object, the smaller its acceleration will be for a given force.
4. How does Newton's third law of motion explain action and reaction?
Ans. Newton's third law of motion states that for every action, there is an equal and opposite reaction. This means that whenever an object exerts a force on another object, the second object exerts an equal and opposite force back on the first object. The forces always occur in pairs, and they act on different objects. For example, if you push a wall, the wall pushes back with an equal amount of force. This law explains why we can move or interact with objects in our environment, as every action we take results in a corresponding reaction.
5. How are Newton's laws of motion applicable in everyday life?
Ans. Newton's laws of motion are applicable in various aspects of our everyday life. Some examples include: - The first law of motion explains why seat belts are necessary in cars. It prevents passengers from moving forward when the car suddenly stops or collides. - The second law of motion helps us understand how much force is required to push or pull objects of different masses. - The third law of motion explains the recoil of a gun when fired, as the bullet pushes forward, and the gun experiences an equal and opposite force backward. - Newton's laws also play a role in sports, such as understanding the trajectory of a basketball shot or the motion of a football after being kicked.
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