logging in or signing up Newton's law of motion[2] madanpathak Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 299 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: November 22, 2010 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: vijayblily (16 month(s) ago) how can i download this presentation Saving..... Post Reply Close Saving..... Edit Comment Close By: brijesh.k51 (17 month(s) ago) how can i download it Saving..... Post Reply Close Saving..... Edit Comment Close By: abelndha (18 month(s) ago) i'm very like it,, can i download it???? please,,, Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Newton’s Laws of Motion : 1 Newton’s Laws of Motion Chapter 6 Slide 2: 2 Aristotle (384-322 BC) believed that all object had a “natural place” and that the tendency of an object was to reside in its “natural place.” All objects were classified into categories of earth, water, air, or fire. “Natural motion” occurred when an object sought to return to its “natural place” after being moved from it by some type of “violent motion.” To keep an object moving would require a force. Causes of Motion Slide 3: 3 These views remained widely supported until the 1500s when Galileo Galilei (1564-1642) popularized experimentation. Isaac Newton (1642–1727) proposed that the tendency of an object was to maintain its current state of motion. Sir Isaac Newton (1642 – 1727) : 4 Sir Isaac Newton (1642 – 1727) Built on Galileo, Kepler, and others Worked out the “three laws of motion” governing the movement of all objects at all times an in all circumstances. He published them in his book Philosophiae Naturalis Principia Mathematica (mathematic principles of natural philosophy) in 1687. Sir Isaac Newton : 5 Sir Isaac Newton 1st Law – an object at rest or in motion stays at rest or in motion unless acted upon by an outside force * Known as the “Principle of Inertia” 2nd Law – describes how an object accelerates or changes direction when a force is applied to it * F = ma 3rd Law – for action there is an equal and opposite reaction What is a Force? : 6 What is a Force? Force can be defined as a push or a pull. (Technically, force is something that can accelerate objects.) Force is measured by N (Newton). A force that causes an object with a mass of 1 kg to accelerate at 1 m/s is equivalent to 1 Newton. 1 Newton = kg * m/s2 What are the types of Forces? : 7 What are the types of Forces? Slide 8: 8 Types of Forces Contact Forces vs. Long-Range Forces : 9 Contact Forces vs. Long-Range Forces Contact Force = acts on an object only by touching it. (ie. Books resting on a desk) Long-Range Force = forces that are exerted without contact or forces resulting from action-at-a-distance, (ie. force of gravity). Types of Forces = see Table 6-2 in your books! Forces have Agents : 10 Forces have Agents Each force has a specific, identifiable, immediate cause called the agent. How to solve for agents: 1. Create a pictorial model of situation. 2. Circle the system and identify every place where the system touches the environment. 3. It is at these places that contact forces are exerted. 4. Then identify any long-range forces on the system, ie. Force of gravity (Fgrav). Example of Forces having Agents : 11 Example of Forces having Agents A physics book resting on a desk. Newton’s 1st Law of Motion : 12 Newton’s 1st Law of Motion An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. (outside force) The velocity of an object remains constant unless acted on by an unbalanced force. “Law of Inertia” Newton’s 1st Law of Motion : 13 Newton’s 1st Law of Motion Newton’s 1st Law of Motion : 14 Newton’s 1st Law of Motion Inertia - the resistance an object has to a change in its state of motion. [Newton’s 1st Law] Equilibrium - if the net force on an object is zero, then it is said to be in equilibrium. An object is in equilibrium when: at rest or moving at constant velocity. Slide 15: 15 Balanced Forces Slide 16: 16 UnBalanced Forces Some Examples from Real Life : 17 Some Examples from Real Life Two teams are playing tug of war. They are both exerting equal force on the rope in opposite directions. This balanced force results in no change of motion. A soccer ball is sitting at rest. It takes an unbalanced force of a kick to change its motion. Net Force : 18 Net Force After you have added and subtracted all the forces you are left with the net force acting on the object. There are several common forces acting on objects that you need to memorize: Free Body Diagrams : 19 Free Body Diagrams To keep track of how all these forces are affecting a single object, it is a good idea to draw a free body diagram. A free body diagram is just a simple sketch of the object showing all the forces that are acting on it. Draw a quick sketch of the object. Draw an arrow showing every force acting on the object. To calculate the net force, add any vectors acting on the same axis (x and y), making sure to pay attention to the directions. Examples of Free Body Diagrams : 20 Examples of Free Body Diagrams Examples of FNet : 21 Examples of FNet Examples of FNet : 22 Examples of FNet You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Newton's law of motion[2] madanpathak Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 299 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: November 22, 2010 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: vijayblily (16 month(s) ago) how can i download this presentation Saving..... Post Reply Close Saving..... Edit Comment Close By: brijesh.k51 (17 month(s) ago) how can i download it Saving..... Post Reply Close Saving..... Edit Comment Close By: abelndha (18 month(s) ago) i'm very like it,, can i download it???? please,,, Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Newton’s Laws of Motion : 1 Newton’s Laws of Motion Chapter 6 Slide 2: 2 Aristotle (384-322 BC) believed that all object had a “natural place” and that the tendency of an object was to reside in its “natural place.” All objects were classified into categories of earth, water, air, or fire. “Natural motion” occurred when an object sought to return to its “natural place” after being moved from it by some type of “violent motion.” To keep an object moving would require a force. Causes of Motion Slide 3: 3 These views remained widely supported until the 1500s when Galileo Galilei (1564-1642) popularized experimentation. Isaac Newton (1642–1727) proposed that the tendency of an object was to maintain its current state of motion. Sir Isaac Newton (1642 – 1727) : 4 Sir Isaac Newton (1642 – 1727) Built on Galileo, Kepler, and others Worked out the “three laws of motion” governing the movement of all objects at all times an in all circumstances. He published them in his book Philosophiae Naturalis Principia Mathematica (mathematic principles of natural philosophy) in 1687. Sir Isaac Newton : 5 Sir Isaac Newton 1st Law – an object at rest or in motion stays at rest or in motion unless acted upon by an outside force * Known as the “Principle of Inertia” 2nd Law – describes how an object accelerates or changes direction when a force is applied to it * F = ma 3rd Law – for action there is an equal and opposite reaction What is a Force? : 6 What is a Force? Force can be defined as a push or a pull. (Technically, force is something that can accelerate objects.) Force is measured by N (Newton). A force that causes an object with a mass of 1 kg to accelerate at 1 m/s is equivalent to 1 Newton. 1 Newton = kg * m/s2 What are the types of Forces? : 7 What are the types of Forces? Slide 8: 8 Types of Forces Contact Forces vs. Long-Range Forces : 9 Contact Forces vs. Long-Range Forces Contact Force = acts on an object only by touching it. (ie. Books resting on a desk) Long-Range Force = forces that are exerted without contact or forces resulting from action-at-a-distance, (ie. force of gravity). Types of Forces = see Table 6-2 in your books! Forces have Agents : 10 Forces have Agents Each force has a specific, identifiable, immediate cause called the agent. How to solve for agents: 1. Create a pictorial model of situation. 2. Circle the system and identify every place where the system touches the environment. 3. It is at these places that contact forces are exerted. 4. Then identify any long-range forces on the system, ie. Force of gravity (Fgrav). Example of Forces having Agents : 11 Example of Forces having Agents A physics book resting on a desk. Newton’s 1st Law of Motion : 12 Newton’s 1st Law of Motion An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. (outside force) The velocity of an object remains constant unless acted on by an unbalanced force. “Law of Inertia” Newton’s 1st Law of Motion : 13 Newton’s 1st Law of Motion Newton’s 1st Law of Motion : 14 Newton’s 1st Law of Motion Inertia - the resistance an object has to a change in its state of motion. [Newton’s 1st Law] Equilibrium - if the net force on an object is zero, then it is said to be in equilibrium. An object is in equilibrium when: at rest or moving at constant velocity. Slide 15: 15 Balanced Forces Slide 16: 16 UnBalanced Forces Some Examples from Real Life : 17 Some Examples from Real Life Two teams are playing tug of war. They are both exerting equal force on the rope in opposite directions. This balanced force results in no change of motion. A soccer ball is sitting at rest. It takes an unbalanced force of a kick to change its motion. Net Force : 18 Net Force After you have added and subtracted all the forces you are left with the net force acting on the object. There are several common forces acting on objects that you need to memorize: Free Body Diagrams : 19 Free Body Diagrams To keep track of how all these forces are affecting a single object, it is a good idea to draw a free body diagram. A free body diagram is just a simple sketch of the object showing all the forces that are acting on it. Draw a quick sketch of the object. Draw an arrow showing every force acting on the object. To calculate the net force, add any vectors acting on the same axis (x and y), making sure to pay attention to the directions. Examples of Free Body Diagrams : 20 Examples of Free Body Diagrams Examples of FNet : 21 Examples of FNet Examples of FNet : 22 Examples of FNet