NEWTON’S LAWS OF MOTION The 2nd and 3rd Law. REVIEW NEWTON’S FIRST LAW OF MOTION: Every object continues in its state of rest, or uniform velocity in.

Slides:

Advertisements

Similar presentations

NEWTON'S LAWS OF MOTION 2nd Law 1st Law 3rd Law.

Advertisements

Newton’s Laws of Motion

J. Pulickeel SPH3U1 October Explain what’s Happening using Newton’s First Law….

For every force there is an equal and opposite force

Newton’s 2 nd and 3 rd Laws Objectives 1.Describe the acceleration of an object in terms of its mass and the net external force acting on it. 2.Predict.

Newton’s Laws of Motion I. Law of Inertia II. F=ma III. Action-Reaction.

Physics Announcements Clickers – should have by now WebAssign – must have Account Codes by tomorrow (Tues, Feb 6) Exam #1 Wednesday –Covers Chapters.

Newton’s 3rd Law For every action…...

Forces In order to make an object at rest move, you need to apply a push or a pull, otherwise known as a force. A force can make an object:  Speed up.

Chapter 13 Newton’s Laws. Inertia The property of matter that tends to resist any change in motion.

Newton’s 3 rd Law of Motion. Newton’s 3 rd law of motion  For every action, there is an equal and opposite reaction.

Chapter 6 Newton’s 3 rd Law. Forces do not occur alone. There is always an interaction between forces.

Newton’s Third Law of Motion – Action and Reaction

Newton’s Laws of Motion I Law of Inertia II F=MA III Action-Reaction.

Do Now: A horizontal force of 20.0 N is needed to keep a 10.0 kg box at constant velocity over a horizontal surface. Calculate the frictional coefficient,

Forces and Motion.  The acceleration of an object is produced by a net force that is directly proportional to the magnitude of the net force, in.

Newton’s Third Law of Motion Physics Fall  According to Newton, whenever objects A and B interact with each other, they exert forces upon each.

Motion & Forces Action and Reaction  Newton’s Third Law  Momentum  Conservation of Momentum.

Newton’s Laws.

5.3 - Forces and Equilibrium ~Background info~

Newton’s First Law Mathematical Statement of Newton’s 1st Law:

Newton’s Third Law of Motion. Momentum.

Forces Chapter 6 Pages: Force A force is a push or pull upon an object resulting from the object's interaction with another object. Contact Forces.

Chapter 5 Newton’s laws of motion Dr. Haykel Abdelhamid Elabidi 1 st week of November 2013/DhH/Muh 1434.

Unit 2 Section 4 Notes Newton’s Laws of Motion. Newton’s First Law: An object at rest stays at rest and an object in motion stays in motion unless acted.

Force A push or pull exerted on an object..

Newton’s Laws of Motion CHAPTER 10, Sections 2-5 Notes I. Law of Inertia I. Law of Inertia II. F=M x A II. F=M x A III. Action-Reaction III. Action-Reaction.

Newton’s 3 rd Law Action-Reaction Forces For every action, there is an equal and opposite reaction. According to Newton, whenever two objects interact.

Newton’s Third Law Action and Reaction. What is an interaction? Interactions occur when one object exerts a force on another object. The result is the.

Velocity = 0 m/s No Acceleration Object does not move Object at rest Forces are balanced Object in Motion Velocity is constant (No Acceleration) All forces.

Chapter 4 Newton’s Laws of Motion. Newton’s First Law of Motion Every object continues in its state of rest, or of uniform motion in a straight line,

Newton’s Third Law Chapter 6.

AP Physics C Chapter 4

Physics Chapter 4. Chapter Forces Force - any kind of push or pull on an object –Ex. Hammer, wind, gravity, bat Measuring force –Spring scale Force.

Newton’s Laws of Motion. Newton’s First Law If the external net force on an object is zero, the object will remain at rest or continue to move at a constant.

Two types of Friction: Kinetic FrictionKinetic Friction Static FrictionStatic Friction 5.4 Friction.

Newton’s Laws of Motion I. Law of Inertia II. F=ma III. Action-Reaction.

Newton’s Laws of Motion 8 th Grade Jennifer C. Brown.

By Lora B. Taylor Law of Inertia 1 st Law 1 st Law – An object at rest will stay at rest, and an object in motion will stay in motion at constant.

Newton’s Laws of Motion March 30, Objectives 1. Explain the three laws of motion.

Newton’s Laws AP Physics C. Basic Definitions  Inertia  property of matter that resists changes in its motion.  Mass  measurement of inertia  Force.

 In order to make an object at rest move, you need to apply a push or a pull, otherwise known as a force.  A force can make an object:  Speed up 

START A NEW WARM UP PAGE FOR UNIT 4 Put today’s date on the 1 st line (10/8) and then write this prompt and your answer: In the next three minutes, write.

Newton’s Laws of Motion I. Law of Inertia II. F=ma III. Action-Reaction.

Momentum & its Conservation Unit 4. What is momentum? “Mass in motion”- objects at rest have no momentum A vector quantity in units of kg ∙ m/s Symbolized.

Chapter 5 Newton’s Third Law of Motion. Newton’s Laws For every action force there is an equal and opposite reaction force (You cannot touch without being.

Newton’s First Law ( ) “The Law of Inertia” A body remains at rest or moves in a straight line at a constant speed unless acted upon by a net.

Chapter 2 - Sections 3 & 4 Newton’s Laws of Motion and Momentum.

Newton’s Third Law. Newton’s 3 rd Law For every action there is an equal and opposite reaction.

Demonstration Questions 1.How did the direction the ball moved compare to the direction the teacher moved? 2.The ball moved because the teacher applied.

Newton’s Laws Chapter 12.

Newton’s Laws.

Newton’s 3rd Law.

Newton’s First Law ( ) “The Law of Inertia”

Newton’s Laws of Motion

Newton’s 3rd Law of Motion

Newton’s Laws of Motion

Newton’s Law Doodle NOtes

Motion & Force Newton’s 2nd Law of Motion

S Investigate and describe qualitatively Newton’s Third Law.

Newton’s 3rd Law.

Newton’s Third Law Physical Science.

FORCE AND MOTION.

What is Newton’s 3rd Law of Motion?

Newton’s First Law ( ) “The Law of Inertia”

Chapter 6 – Action and Reaction

Newton’s Third Law Physical Science 11/1/11.

Ch.4 Newton's Laws of Motion & Net Forces.

Newton’s Laws of Motion

Presentation transcript:

NEWTON’S LAWS OF MOTION The 2nd and 3rd Law

REVIEW NEWTON’S FIRST LAW OF MOTION: Every object continues in its state of rest, or uniform velocity in a straight line, as long as no net force acts on it. MASS: measure of the inertia of an object FORCE: measure of the magnitude and direction of the interactions

Newton’s Second Law of Motion Why objects change velocity? What happens if force acts: -in direction of motion -opposite the direction of motion -sideways What is the relation between acceleration and force? What is the relation between mass and force?

Statement of the 2nd Law The acceleration of an object is directly proportional to the net force acting on it, and is inversely proportional to its mass. The direction of the acceleration is in the direction of the net force acting on an object

-vector sum of all forces acting on the object (net force)

If the mass is constant we can write EQUATION OF MOTION Force vector can be written in component form in rectangular coordinates as

Find the acceleration... m = 5kg F 1 =10NF 2 =5N

…and some more m = 5kg F 1 =10N

Newton’s Third Law of Motion Whenever an object exerts a force on a second object, the second exerts an equal force in the opposite direction on the first.

Force on an object and by an object How is a car accelerating forward? Which force makes us walk? Why you feel hurt when you kick the wall? How do birds fly? IMPORTANT: only force exerted on an object influences the motion, not the force exerted by an object itself

Force exerted by runner on the ground Force exerted by the ground on the runner

Direction of motion Direction of the tyre rotation Force by tyre on the ground Force by ground on the tyre

Force that person exerts on the wall Force that wall exerts on the person

Air pushes the wing up Wing pushes the air down

Questions 1. While driving, Anna observed a bug striking the windshield of her car. Obviously, a case of Newton's third law of motion. The bug hit the windshield and the windshield hit the bug. Which of the two forces is greater: the force on the bug or the force on the windshield?

Rockets are unable to accelerate in space because... A-there is no air in space for the rockets to push off of. B-there is no gravity is in space. C-there is no air resistance in space. D-... nonsense! Rockets do accelerate in space.

. A gun recoils when it is fired. The recoil is the result of action-reaction force pairs. As the gases from the gunpowder explosion expand, the gun pushes the bullet forwards and the bullet pushes the gun backwards. The acceleration of the recoiling gun is... A-greater than the acceleration of the bullet. B-smaller than the acceleration of the bullet. C-the same size as the acceleration of the bullet.