Glencoe Physics Chapter 9

Slides:

Advertisements

Similar presentations

Momentum and Impulse Chapter 6 Section 1.

Advertisements

Momentum Inertia in Motion. What is momentum? Momentum is a commonly used term in sports. A team that has the momentum is on the move and is going to.

Objectives Students should be able to: 1. Define linear momentum and calculate it. 2. Distinguish between the unit of force and momentum. 3. design an.

Trains. Momentum Which hurts more if it hits you? Why? Left one has more mass Left one has more velocity Left one has more momentum!

Bellwork: Get out your bellwork for this week and answer the following 2 questions (this is not a quiz, but will be collected) 1.What is your definition.

(Linear) Momentum (p) ● Momentum is mass times velocity momentum is a vector! momentum has units kg*m/s Which has more momentum?  1 kg object moving.

QW What is the unit for momentum?

Momentum Chapter 8. Momentum Chapter 8 Objectives Define momentum. Define impulse and describe how it affects changes in momentum. Explain why an impulse.

Momentum. Momentum is an expression of how hard it is to change the motion of an object. It has to do with the object's mass and velocity and is an indication.

Physics Chapter 6 Impulse and Momentum.

Section 1 momentum and collisions

General Physics Momentum and Impulse Recall Newton’s First Law  Inertia was introduced and is the reason that objects follow the first law.  What is.

Which takes more force to stop? Big 2m/s Small 2 m/s Big 0.6 m/s Small 6 m/s Small 2 m/s 100 m/s.

Momentum Momentum is the amount of ‘oomph’ a moving object has. “The more ‘oomph’ the object has, the harder it is to stop” p = mv (vector quantity)

Momentum and Newton’s 2 nd Law of Motion. Momentum Momentum - an object’s tendency to keep moving  Determines how difficult it is to stop the object’s.

Impulse & Momentum. What is momentum? Momentum is a commonly used term in sports. A team that has the momentum is on the move and is going to take some.

Momentum  Momentum is what Newton called the “quantity of motion” of an object.

1 Momentum and Its Conservation Or How I Learned to Love Collisions.

Newton’s Third Law of Motion Chapter 3 Section 3.

Speed, Acceleration, and Momentum page 10 & 11. Essential Question: Explain if we lost all our time keeping devices, how would you keep up with where.

Linear Momentum. 5-1 Linear Momentum Linear Momentum, p – defined as mass x velocity The unit is kg·m/s A quantity used in collisions So a small object.

Pre-AP Physics: Momentum and Impulse. Agenda 4/1 – 4/2 1. Introduction to Momentum Mini-Lab 2. Momentum Notes 3. Momentum Practice HW: Finish Momentum.

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. What is momentum? Momentum is the quantity of motion. If an object is in motion, it has momentum Mass in motion Momentum is dependent on 2 things:

Momentum and Collisions Unit 5, Presentation 1. Momentum  The linear momentum of an object of mass m moving with a velocity is defined as the product.

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 7 Linear Momentum. Objectives Students should be able to: 1. Define linear momentum and calculate it. 2. Distinguish between the unit of force.

Momentum Ms. Li Momentum is a commonly used term in sports. A team that has the momentum is on the move and is going to take some effort to stop. A team.

Concept Summary. Momentum  Momentum is what Newton called the “quantity of motion” of an object.

Physics NH Primary Day Review of momentum for Quiz Review Problems.

Momentum and Impulse. March 24, 2009 Momentum and Momentum Conservation  Momentum  Impulse  Conservation of Momentum  Collision in 1-D  Collision.

Momentum. Introduction to Momentum Momentum can be defined as "mass in motion." All objects have mass; so if an object is moving, then it has momentum.

Momentum and Collisions. Momentum ►F►F►F►From Newton’s laws: force must be present to change an object’s velocity (speed and/or direction) MMMMethod.

CHAPTER 6 Momentum.

Momentum Chapter 9-Glencoe Chapter 7-Cutnell & Johnson.

Linear Momentum. 5-1 Linear Momentum Linear Momentum, p – defined as mass x velocity The unit is kgm/s A quantity used in collisions So a small object.

 In sports when player has a lot of momentum, what we mean, that it will be hard to stop them.  In Physics momentum refers to the quantity of motion.

Momentum and Newton’s Laws Section 5.4. Momentum aka the big “Mo” Newton first thought of the concept of a “quantity of motion” made up of mass and velocity.

Physics Introduction of momentum. What will be done the next two weeks We will be discussing the concept of Momentum until Wednesday of next week.

Objectives Students should be able to: 1. Define linear momentum and calculate it. 2. Define and calculate impulse and apply it in the relationship, FΔt.

6-1: Momentum and Impulse

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 By: Heather Britton. Momentum Momentum is a product of an objects mass and velocity Momentum is a vector quantity which means it has both magnitude.

Impulse and Momentum Unit 9. Impulse Application of force during a small amount of time Application of force during a small amount of time Applies to.

The “Big MO”. Momentum is the product of __________ X the _____________ of an object.

Momentum and Impulse Unit 4: Momentum, Work and Energy Physics 11.

Momentum Momentum is a commonly used term in sports. –A–A team that has the momentum is on the move and is going to take some effort to stop. A team that.

Applied Science III - Finau. What is inertia?  An object’s ability to change its motion  A measure of the amount of matter within the object.

Momentum and Its Conservation chapter 9 From our textbook Pages

What is Momentum??? What is Impulse???. a)A civic going down the highway at 30 mph or a semi going the same speed? b)A civic going 30 mph or a civic going.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Momentum and Impulse Chapter 6 Linear Momentum Momentum.

A Realistic Impact: A _________ Impact: F net Think of how a baseball bat _________ (comes into contact with) a ball as a function of _________. bat first.

Momentum Inertia in Motion Definition of Momentum Momentum is the product of mass and velocity. Momentum Mass Velocity.

Momentum Impulse–Momentum Theorem Momentum Objective: For a constant force acting on an object, the impulse by that force is the product of the force.

Momentum & Impulse Aim: How does the mass and velocity affect an object’s motion?

Momentum and Collisions

Newton’s laws of motion

Momentum Physics.

Momentum and Impulse.

Integrated Science Glencoe Chapter 4

Let’s start with everyday language

Momentum and Impulse.

A Second Look at Newton’s Law

Momentum and Impulse.

Momentum and Its Conservation

Presentation transcript:

Glencoe Physics Chapter 9 Momentum and Its Conservation

Air Bags How exactly does an airbag prevent serious injury in an auto accident?

Baseball Why are baseball players encouraged to “follow through” when hitting the ball with a bat?

Why does a cannon move backward when firing?

Highway safety What can we do to make highways safer for people?

Common usage of the term “Momentum” A team that has momentum is on the move and is going to take some effort to stop. “Going into the final weeks, the St. Louis Cardinals have the momentum." The headlines declare “Pittsburgh Steelers Gaining Momentum." A team that has a lot of momentum is really on the move and is going to be hard to stop.

Momentum (from latin, meaning movement) Momentum is a physics term; it refers to the quantity of motion that an object has. Refers to how hard something is to stop. 1330 Jean Buridan “the true measure of an object’s motion” 1600’s Rene Descartes “quantity of motion Galileo “Momento” Newton “Momentum”

Which is probably harder to stop????? Why?

Yep…….that’s p for Momentum!!! Momentum Defined Yep…….that’s p for Momentum!!! p = m v p = momentum m = mass v = velocity Unit must be kg m/s

Road Train in the Australian Outback So momentum of an object depends on the amount of stuff moving (mass), and the velocity at which the stuff is moving. Question? Under what conditions of motion would a semi-truck and a roller skate have the same momentum? Road Train in the Australian Outback

Equivalent Momenta Car: m = 1800 kg; v = 80 m /s p = 1.44 ·105 kg · m /s Bus: m = 9000 kg; v = 16 m /s p = 1.44 ·105 kg · m /s Train: m = 3.6 ·104 kg; v = 4 m /s p = 1.44 ·105 kg · m /s

Momentum Facts Momentum is a vector quantity Velocity and momentum vectors point in the same direction SI unit is the kg·m/s ( no special name) Momentum is a conserved quantity Momentum is directly proportional to mass and velocity of object

Momentum Facts A net force is needed to change a particular object’s momentum (a change in velocity) Something big and slow can have the same momentum of something small and fast

Momentum Examples p = 45 kg · m /s at 26º N of E 30 kg · m /s 3 m /s 9 km /s 26º Now, find the vertical and horizontal components of the momentum>>>>>

Sample problems Find the magnitude of the momentum of a car of mass 725 kg moving at a velocity of 100. km/h.

Sample problems Calculate the velocity of a car that has a mass of 2175 kg and the same momentum as the previous car.

Impulse In order to change the momentum of an object, a force must be applied Gives an alternative statement of Newton’s second law….. Watch as a little mathematical magic is performed! Magic???

When an impulse (force applied over a period of time) is applied, a change in momentum will occur

“Big Bertha” 400-ton barrel

Shells weighed 7 tons!!!