Class 11 Exam  >  Class 11 Videos  >  Numericals on Circular Motion - Laws of Motion

Numericals on Circular Motion - Laws of Motion Video Lecture - Class 11

FAQs on Numericals on Circular Motion - Laws of Motion Video Lecture - Class 11

1. What is circular motion and how is it related to the Laws of Motion?
Ans. Circular motion refers to the movement of an object along a circular path. It is related to the Laws of Motion as it involves the concepts of centripetal force and inertia. According to Newton's first law of motion, an object in motion tends to stay in motion unless acted upon by an external force. In circular motion, the object continuously changes its direction, indicating the presence of an external force acting towards the center of the circle, known as the centripetal force.
2. What is the centripetal force in circular motion?
Ans. The centripetal force is the force that acts towards the center of the circle, keeping an object in circular motion. It is responsible for continuously changing the direction of the object's velocity without changing its speed. The centripetal force can be provided by various factors, such as tension in a string, gravitational force, or friction.
3. How is centripetal force related to the mass and velocity of an object in circular motion?
Ans. The centripetal force is directly proportional to the mass and the square of the velocity of an object in circular motion. Mathematically, the centripetal force (F) can be represented as F = m * v^2 / r, where m is the mass, v is the velocity, and r is the radius of the circular path. Increasing the mass or velocity of the object will result in a greater centripetal force required to keep it in circular motion.
4. Can an object in circular motion experience a net force of zero?
Ans. No, an object in circular motion cannot experience a net force of zero. According to the Laws of Motion, if an object is accelerating, there must be a net force acting on it. In circular motion, the object is constantly changing its direction, indicating the presence of an acceleration towards the center of the circle. This acceleration is provided by the centripetal force, which is always present in circular motion.
5. What are some real-life examples of circular motion?
Ans. There are several real-life examples of circular motion, such as the motion of a car around a curved track, a planet orbiting the sun, a spinning top, or a roller coaster navigating loops. These examples demonstrate the concept of centripetal force and the application of the Laws of Motion in various scenarios.
Related Searches

Summary

,

Numericals on Circular Motion - Laws of Motion Video Lecture - Class 11

,

study material

,

shortcuts and tricks

,

Previous Year Questions with Solutions

,

Free

,

mock tests for examination

,

past year papers

,

Important questions

,

video lectures

,

Numericals on Circular Motion - Laws of Motion Video Lecture - Class 11

,

MCQs

,

Semester Notes

,

pdf

,

Viva Questions

,

Exam

,

Sample Paper

,

Extra Questions

,

Objective type Questions

,

ppt

,

Numericals on Circular Motion - Laws of Motion Video Lecture - Class 11

,

practice quizzes

;