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Revision notes on 3.1.3 Newton's Laws of Motion for the CIE A Level Physics syllabus, written by the Physics experts at Save My Exams.
Newton's laws of motion are three physical laws that describe the relationship between a body and the forces acting upon it, and its motion in response to those forces. Find out more about Newton's laws of motions by downloading the comprehensive notes.
Isaac Newton (British, 1642-1727) first figured out the precise relationship between forces and motion “... for in those days I was in my prime of age for invention.” Newton's First Law (NI): If the net force acting on an object is zero, then it has constant velocity. F 0 v constant net Newton's Second Law (NII): F m a net
- 5.1 Forces. Dynamics is the study of how forces affect the motion of objects, whereas kinematics simply describes the way objects move. Force is a push or pull that can be defined in terms of various standards, and it is a vector that has both magnitude and direction.
- 5.2 Newton's First Law. According to Newton’s first law, there must be a cause for any change in velocity (a change in either magnitude or direction) to occur.
- 5.3 Newton's Second Law. An external force acts on a system from outside the system, as opposed to internal forces, which act between components within the system.
- 5.4 Mass and Weight. Mass is the quantity of matter in a substance. The weight of an object is the net force on a falling object, or its gravitational force.
Newton's laws of motion are three physical laws that describe the relationship between the motion of an object and the forces acting on it. These laws, which provide the basis for Newtonian mechanics, can be paraphrased as follows:
Newton’s three laws of physics are the basis for mechanics. The first law states that a body at rest will stay at rest until a net external force acts upon it and that a body in motion will remain in motion at a constant velocity until acted on by a net external force.
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Jan 5, 2024 · In this article, we will explore each of Newton's Laws in detail and discuss their significance in the field of physics. We'll also provide real-world examples to help you grasp these concepts better.
