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Get CBSE Notes for Class 9 Science Chapter 9. Force and Laws of Motion: Force and its Kinds prepared by experts as per the latest NCERT syllabus and CBSE exam pattern. These concise and easy-to-understand notes cover important definitions, formulas, diagrams, and key concepts from the chapter to help students in quick revision and effective exam preparation. Whether you are studying for school tests, board exams, or competitive exams, these notes provide a reliable study resource. Designed in simple language with point-wise explanations, they save time and enhance learning efficiency. Download free PDF notes, explore solved examples, and strengthen your understanding of [Topic Name] for scoring high marks. Perfect for Class 9 students who want clear, structured, and exam-oriented notes for CBSE Science.
Chapter 9. Force And Law Of Motion
Force : Force is push or pull which change or it has tendency to change the position of body.
In other words;
Applied pushing, hitting and pulling on an object is known as force.
The S.I unit of force is neuton (N) or kgm-2.
It is a vector quantity. It has both magnitude and direction.
Force is caused motion in an object.
Type of forces:
1. Friction force: This is a force which acts opposite to the direction of motion. It acting between to surfaces. Example:
(i) When we walk the force acting between our slipper and the earth.
(ii) When a car runs on the road force acting between tires and the road.
Reducing the friction force:
For reducing or minimising the frictional force we use
(i) Smooth marble
(ii) Smooth plane
(iii) Providing a lubricant on top of the planes
2. Centripital force:
3. Magnetic force:
4. Gravitational force:
Acording to its severity there are two kinds of force is known;
(i) Balanced force : If the resultant of several force acting on a body is zero then force are said to be balanced force.
(ii) Unbalanaced force : If the resultant of several force acting on a body is not zero then force are said to be balanced force.
Newton further studied Galileo’s ideas on force and motion and presented three fundamental laws that govern the motion of objects. These three laws are known as Newton’s laws of motion.
(1) The First Law of Motion
(2) The Second Law of Motion
(3) The Third Law of Motion
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Ace your exams with CBSE Notes for Class 9 Science chapter 9. Force and Laws of Motion: Force and its Kinds. These notes provide a clear explanation of important concepts, formulas, diagrams, and solved examples from the NCERT syllabus. Specially designed for Class 9 students, the notes are structured in a simple, point-wise manner to make revision quick and effective. Whether you are preparing for school tests, board exams, or competitive exams, these Science notes will boost your confidence and save valuable study time. You can also download Science class 9 chapter 9. Force and Laws of Motion free PDF notes for offline learning. With easy-to-grasp language, exam tips, and well-organized content, these CBSE Science notes on chapter 9. Force and Laws of Motion – Force and its Kinds are the perfect study companion for scoring high marks and mastering the subject.
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