Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Newton`s Three Laws of Motion - Walden University ePortfolio for
Document related concepts
Transcript
PHYSICS: CHAPTERS 4 thru 6 Newton’s Three Laws of Motion I can tell you all you need to know about the laws of motion… The first law is…“Crawling is always more fun than being stuck on your back.” According to GABE Newton Schmewton… PHYSICS PHYSICS: CHAPTERS 4 thru 6 Newton’s Three Laws of Motion I can tell you all you need to know about the laws of motion… The second law is…“Baby food is always more fun when it is flying through the air.” According to GABE Newton Schmewton… PHYSICS PHYSICS: CHAPTERS 4 thru 6 Newton’s Three Laws of Motion I can tell you all you need to know about the laws of motion… The third law is…“Being tossed up in the air is a blast…unless dad decides to drop you.” According to GABE Newton Schmewton… PHYSICS PHYSICS: CHAPTERS 4 thru 6 Newton’s Three Laws of Motion …we are going to review Newton’s Laws of Motion using a technique called the “Framing Routine.” According to GABE Seriously… PHYSICS PHYSICS: CHAPTERS 4 thru 6 Newton’s Three Laws of Motion …get out your copy of the worksheet and write things down as we go… According to GABE Seriously… PHYSICS The Framing Routine The graphic organizer that we will use looks like this: Key Topic Is about… Let’s start with the key topic. Main Idea #1 Main Idea #2 Main Idea #3 ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ So what… The Framing Routine The Key Topic is/are… Newton’s Laws of Motion …and Newton’s Laws are about… …the basic characteristics of motion… The Framing Routine Key Topic… Newton’s Laws of Motion …is/are about…. the basic characteristics of motion… ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ So what… The Framing Routine The First Law of Motion is… First Law – Law of Inertia What are some important details about the first law? • The laws states: “An object in motion tends to stay in motion and an object at rest tends to stay at rest…unless acted on by an outside force.” • Inertia is the property of an object to maintain its current state of motion. • Inertia is closely related to mass. • A force must occur to change an object’s speed and/or direction. • Friction is a common force that causes objects to slow down. The Framing Routine The First Law of Motion is… First Law – Law of Inertia • _______________________________________ • _______________________________________ What are some important details about the first law? • _______________________________________ • _______________________________________ • _______________________________________ • _______________________________________ The Framing Routine The First Law of Motion is… First Law – Law of Inertia • Going around a sharp curve in a car • The cork/ring/jar trick What are some examples that illustrate the first law? • The tablecloth/dishes magic trick • A Mack truck rolling down a hill as compared to Mr. Dillon’s Geo Metro • ____________________________ • ____________________________ • ____________________________ The Framing Routine Key Topic… Newton’s Laws of Motion …is/are about…. the basic characteristics of motion… First Law (Inertia) • “An object in motion tends to stay in motion and an object at rest tends to stay at rest…unless acted on by an outside force.” ____________ ____________ • Inertia is the property of an object to maintain its current state of motion. ____________ ____________ ____________ ____________ ____________ ____________ • Inertia is closely related to mass. • A force must occur to change an object’s speed and/or direction. • Friction is a common force that causes objects to slow down. • Etc. • Examples So what… The Framing Routine The Second Law of Motion is… Second Law – Law of Acceleration What are some important details about the second law? • The law states: “Force equals mass times acceleration.” • F = m·a • This law is the mathematical relationship between force, mass, and acceleration. • F stands for the net force. Be sure to calculate the net force first. • If mass is the same, force and acceleration are directly proportional…which means… • If force is the same, mass and acceleration are inversely proportional…which means… The Framing Routine The Second Law of Motion is… Second Law – Law of Acceleration • _______________________________________ • _______________________________________ What are some important details about the second law? • _______________________________________ • _______________________________________ • _______________________________________ • _______________________________________ The Framing Routine Key Topic… Newton’s Laws of Motion …is/are about…. the basic characteristics of motion… First Law (Inertia) • “An object in motion tends to stay in motion and an object at rest tends to stay at rest…unless acted on by an outside force.” • Inertia is the property of an object to maintain its current state of motion. • Inertia is closely related to mass. • A force must occur to change an object’s speed and/or direction. • Friction is a common force that causes objects to slow down. • Etc. • Examples So what… Second Law (Acceleration) • The law states: “Force equals mass times acceleration.” • F = m·a ____________ • This law is the mathematical relationship between force, mass, and acceleration. ____________ • F stands for the net force. Be sure to calculate the net force first. ____________ • If mass is the same, force and acceleration are directly proportional…which means… ____________ • If force is the same, mass and acceleration are inversely proportional…which means… The Framing Routine The Third Law of Motion is… Third Law – Law of Action/Reaction What are some important details about the third law? • The law states: “For every action there is an equal and opposite reaction.” • To find action/reaction pairs use the following recipe: A exerts a force on B. B exerts a force on A. • Action/reaction pairs are always equal and opposite. • Action/reaction pairs act on different objects. • Action/reaction pairs do not cancel out. The Framing Routine The Third Law of Motion is… Third Law – Law of Action/Reaction • Although the forces are the same, differences in mass cause differences in accelerations…which is what we perceive when looking at a situation. What are some important details about the third law? • _______________________________________ • _______________________________________ • _______________________________________ • _______________________________________ • _______________________________________ The Framing Routine The Third Law of Motion is… Third Law – Law of Action/Reaction • Foot kicks wall. Wall kicks foot. • Weight (a.k.a. Earth pulls you…) You pull Earth. What are some examples of action reaction pairs? • Balloon pushes air. Air pushes balloon. • Mr. Dillon kisses Mrs. Dillon. Mr. Dillon gets slapped. • __________________ • __________________ • __________________ • __________________ The Framing Routine Key Topic… Newton’s Laws of Motion …is/are about…. the basic characteristics of motion… First Law (Inertia) • “An object in motion tends to stay in motion and an object at rest tends to stay at rest…unless acted on by an outside force.” • Inertia is the property of an object to maintain its current state of motion. • Inertia is closely related to mass. • A force must occur to change an object’s speed and/or direction. • Friction is a common force that causes objects to slow down. • Etc. • Examples So what… Second Law (Acceleration) Third Law (Action/Reaction) • The law states: “Force equals mass times acceleration.” • The law states: “For every action there is an equal and opposite reaction.” • F = m·a • A exerts force on B. B exerts force on A. • This law is the mathematical relationship between force, mass, and acceleration. • Action/reaction pairs are always equal and opposite. • F stands for the net force. Be sure to calculate the net force first. • Action/reaction pairs act on different objects. • If mass is the same, force and acceleration are directly proportional…which means… • Action/reaction pairs do not cancel out. • If force is the same, mass and acceleration are inversely proportional…which means… • Although the forces are the same, differences in mass cause differences in accelerations…which is what we perceive when looking at a situation. • Examples The Framing Routine So what… Newton’s three laws of motion are relatively simple ways to describe all motion. Any situation can be analyzed using the three laws. The Framing Routine Key Topic… Newton’s Laws of Motion …is/are about…. the basic characteristics of motion… First Law (Inertia) • “An object in motion tends to stay in motion and an object at rest tends to stay at rest…unless acted on by an outside force.” • Inertia is the property of an object to maintain its current state of motion. • Inertia is closely related to mass. • A force must occur to change an object’s speed and/or direction. • Friction is a common force that causes objects to slow down. • Etc. • Examples Second Law (Acceleration) Third Law (Action/Reaction) • The law states: “Force equals mass times acceleration.” • The law states: “For every action there is an equal and opposite reaction.” • F = m·a • A exerts force on B. B exerts force on A. • This law is the mathematical relationship between force, mass, and acceleration. • Action/reaction pairs are always equal and opposite. • F stands for the net force. Be sure to calculate the net force first. • Action/reaction pairs act on different objects. • If mass is the same, force and acceleration are directly proportional…which means… • Action/reaction pairs do not cancel out. • If force is the same, mass and acceleration are inversely proportional…which means… • Although the forces are the same, differences in mass cause differences in accelerations…which is what we perceive when looking at a situation. • Examples So what… Newton’s three laws of motion are relatively simple ways to describe all motion. Any situation can be analyzed using the three laws. NEWTON’S LAWS My first law of motion explains all you need to know about inertia: Newton’s First Law of Motion (a.k.a. Law of Inertia) “An object in motion tends to stay in motion, and an object at rest tends to stay at rest…unless acted on by an outside force.” NEWTON’S LAWS My second law of motion explains, mathematically, how forces affect motion: Newton’s Second Law of Motion (a.k.a. Law of Acceleration) “Force equals mass times acceleration.” F m a NEWTON’S LAWS My third law of motion explains the interaction of objects and forces: Newton’s Third Law of Motion (a.k.a. Law of Action/Reaction) “For every action, there is an equal and opposite reaction.” PHYSICS IS PHUN!
