Momentum Recall: All objects have inertia (the resistance to a change in motion) When the object is in motion, we refer to the inertia as momentum The.

Slides:



Advertisements
Similar presentations
Last time, we examined how an external impulse changes the momentum of an object. Now, we will look at how multiple objects interact in a closed system.
Advertisements

Conservation of Momentum
Law of Conservation of Momentum and Collisions Chapter
Momentum is a measure of inertia in motion. Momentum is equal to mass multiplied by velocity. p = mv.
Momentum Conservations Notes
Section 2.4: Forces transfer momentum
NEWTON’S SECOND LAW OF MOTION Law of Acceleration.
Conservation of Momentum. Conserved Total momentum of a system before and after an interaction remains constant Momentum before = Momentum After Two balls.
Newton’s Third Law of Motion
Momentum and Impulse. Answer Me!!! Forces cause objects to start moving. What keeps an object moving after the force is no longer applied?
Momentum A measure of how difficult it is to change an object’s motion (to make it stop or swerve). On what does this difficulty depend? –More mass; more.
Energy Momentum, Collisions, Impulse. Momentum A measure of how hard it is to stop a moving object A measure of how hard it is to stop a moving object.
The product of mass and velocity of a body is called momentum. Force and Laws of Motion Momentum Mathematically, Momentum = mass × velocity P = mv It is.
Chapter 12: Forces and Motion
Newton’s Laws of Motion
Physical Science Laws of Motion. Objectives Identify the law that says that objects change their motion only when a net force is applied Relate the first.
Concept Summary. Momentum  Momentum is what Newton called the “quantity of motion” of an object.
Forces in Motion What Do You Think? Explain what you know about Newton’s Laws of Motion.
3.1 The 3 rd Law of Motion, Momentum and Impulse.
Momentum Momentum = mass x velocity ( Kgm/s ) (kg) (m/s) If an object is moving towards you, your safety will depend on * how massive the object is * how.
Momentum A measure of how difficult it is to change an object’s motion (to make it stop or swerve). On what does this difficulty depend? –More mass; more.
Momentum Conservations Notes
1. Momentum is often called ________ in motion Answer: inertia.
Homework Read pages 96 – 101 Answer practice problems
Momentum Notes. Momentum Momentum ( ρ) – inertia in motion Mass x Velocity ρ = mv measured in kg·m/s.
Momentum The strength of an object’s motion. Momentum is NOT a force. This cement truck has a lot of momentum. It does not HAVE force, but it could exert.
Chapter 2 - Sections 3 & 4 Newton’s Laws of Motion and Momentum.
Chapter th Grade. Galileo Galilei –Italian Astronomer –Suggested that once an object is in motion, no force is needed to keep it moving. Force.
Momentum A quantity defined as the product of the mass and velocity of an object.
Momentum “Why can you stop a baseball traveling at 40 meters per second but not a car traveling at 1 meter per second?”
Formula Momentum (p) = Mass x velocity Unit is kgm/s.
Momentum is a measure of inertia in motion
GCSE PHYSICS: MOMENTUM
Newton’s First Law What makes an object speed up, slow down, or change directions? Objects change their state of motion only when a net force is applied.
CHAPTER 3: FORCES 3.3 THE THIRD LAW OF MOTION.
CONSERVATION OF LINEAR MOMENTUM
Newton's Third Law of Motion and Momentum
Chapter th Grade.
Unit 4: Momentum & Impulse
Newton’s Laws of Motion
Newton’s Laws Of Motion
Object at rest stays at rest,
p = mv v p m B. Momentum Momentum quantity of motion
Chapter 6 Section 3 Inertia & Momentum
Momentum:.
Momentum.
Law of Conservation of Momentum
I. Newton’s Laws of Motion
Newton’s Laws of Motion
Momentum CHAPTER # 5 Momentum.
Newton’s 3 laws of motion
I. Newton’s 3rd Law For every ACTION force there is an equal an opposite REACTION force. Ex: Hammer hits a nail Action: Hammer hitting nail Reaction: Nail.
Conservation of Momentum
MOMENTUM (p) is defined as the product of the mass and velocity -is based on Newton’s 2nd Law F = m a F = m Δv t F t = m Δv IMPULSE MOMENTUM.
Conservation of Momentum
Momentum Momentum Clip.
Momentum Mass X Velocity.
p = mv v p m B. Momentum Momentum quantity of motion
Impulse.
Newton’s Third Law of Motion and Momentum
Formative Assessment.
Unit 8 Impulse and Momentum.
Newton’s 1st and 2nd Laws.
Newton’s Laws of Motion
Momentum & Impulse and Projectile Motion
Momentum.
Newton’s Third Law of Motion
Action and Reaction Forces Newton’s Third Law
Warm Up 12/03 Solve for mass:
Presentation transcript:

Momentum Recall: All objects have inertia (the resistance to a change in motion) When the object is in motion, we refer to the inertia as momentum The momentum of an object is equal to: mass × velocity If the direction of the object is not important, we can use: mass × speed

Momentum p = mv ρ = momentum m = mass v = velocity or speed (Kgm/s)

Momentum 1. A car with a mass of 1500 kg is traveling west at 60 m/s. What is the car’s momentum? ρ = m x v ρ = 1500 kg x 60 m/s ρ = 90,000 kgm/s west

Momentum 2. A horse with a mass of 400 kg is traveling at 12 m/s. What is the horse’s momentum? Volunteer?

Momentum 3. A man with a mass of 90 kg is traveling at 3 m/s. What is the man’s momentum? Volunteer?

Law of Conservation of Momentum Newton’s 1st Law of Motion tells us that the velocity of an object remains the same without an outside force. The mass of the object also remains the same. Therefore . . . The momentum of a system remains unchanged if no external forces are present.

Law of Conservation of Momentum A bullet is shot from a gun. What do we know about the force exerted on the bullet and the gun?

Law of Conservation of Momentum A bullet is shot from a gun. Is the momentum conserved for the bullet? Why or why not?

Law of Conservation of Momentum A bullet is shot from a gun. Is the momentum conserved for the gun? Why or why not?

Law of Conservation of Momentum A bullet is shot from a gun. Is the momentum conserved for the gun-bullet system? Why or why not?

Law of Conservation of Momentum mgun = 5 Kg mbullet = 0.010 Kg vbullet = 250 m/s vgun = ? We can calculate the recoil velocity of the gun using the law of conservation of momentum.

Law of Conservation of Momentum mbullet = 0.010 Kg vbullet = 250 m/s m1 v1 mgun = 5 Kg vgun = ? m2 v2 0.01 Kg x 250 m/s 5 Kg m1 x v1 = m2 x v2 v2 = m1 x v1 m2 v2 = v2 = 0.5 m/s

Law of Conservation of Momentum m1 v1 m2 = m2 v2 v2 = A 5 kg fish swimming at 2 m/s swallows an absent minded 1 kg fish swimming toward it at a velocity that brings both fish to a halt immediately after lunch. What is the velocity of the smaller fish before lunch? Volunteer?