CH 5- MOMENTUM BIG IDEA: THE FORCE ACTING ON AN OBJECT MULTIPLIED BY THE TIME THAT FORCE ACTS EQUALS THE OBJECTS CHANGE IN MOMENTUM.

Slides:



Advertisements
Similar presentations
8.1 Momentum A moving object can have a large momentum if it has a large mass, a high speed, or both.
Advertisements

Momentum So What’s Momentum ? Momentum = mass x velocity This can be abbreviated to :. momentum = mv Or, if direction is not an important factor :..
Chapter 6: MOMENTUM.
Conceptual Physics 11th Edition
1. Momentum: By Momentum, we mean “Inertia in Motion” or more specifically, the mass of an object multiplied by its velocity. Momentum = mass × velocity.
Introduction to Physical Science Monday, Wednesday, Thursday Tom Burbine
Momentum and Inertia. Momentum Momentum = mass x velocity MV = P Momentum is inertia in motion. A moving object has more p than an object with less m.
Momentum is a measure of inertia in motion. Momentum is equal to mass multiplied by velocity. p = mv.
Momentum Conservations Notes
Notes Chapter 8 Momentum Objectives:
Conservation of Momentum Momentum before interaction = Momentum after interaction.
Momentum Chapter 7. Momentum Momentum – the product of the mass and the velocity of an object (inertia in motion) momentum = mv Momentum is a vector quantity.
Chapter 6 Momentum Impulse Impulse Changes Momentum Bouncing
Chapter 4 Impulse and Momentum.
Momentum Chapter 8. Momentum Chapter 8 Objectives Define momentum. Define impulse and describe how it affects changes in momentum. Explain why an impulse.
Physics Chapter 6 Impulse and Momentum.
Physics Chapter 7 Momentum. If a wagon were to crash into you, how much would it hurt?
Chapter 7 Momentum. Inertia and Momentum Inertia – the tendency of an object to resist a change in its motion. Inertia is proportional to mass Momentum.
Momentum. Newton's Apple : Video Clip Momentum: is the inertia of motion Momentum = mass x velocity momentum = mv = P.
Momentum Momentum is defined as “Inertia in Motion” p = mv.
Momentum CHAPTER 9a So What’s Momentum ? Momentum = mass x velocity This can be abbreviated to :. momentum = mv Or, if direction is not an important.
LAW OF CONSERVATION OF MOMENTUM
Momentum!!! Physics Mr. Padilla.
Iraq moves to defuse war momentum Storm Gains Momentum, But Not Power, In Trek Across Gulf Group hopes to gain Momentum with improv events Push For FDA.
Momentum – Impulse Collisions
Unit 4: Momentum and Energy Chap. 7 Momentum Which is harder to stop, a truck traveling at 55 mi/hr or a small car traveling at 55 mi/hr?  Why?
8 Momentum Momentum is conserved for all collisions as long as external forces don’t interfere.
M o m e n t u m Momentum is… Inertia in motion Mass x Velocity.
Momentum Chin-Sung Lin.
Momentum Unit 3.
Would you rather be hit by a tennis ball or a bowling ball?
Momentum and Collisions Unit 6. Momentum- (inertia in motion) Momentum describes an object’s motion Momentum equals an object’s mass times its velocity.
1 AGENDA 13-NOV: PJAS Questions? PJAS Questions? Notes – Unit 4: Momentum (chapter 5) Notes – Unit 4: Momentum (chapter 5) CW – Conservation of Momentum.
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.
CHAPTER 6 Momentum.
Chapter 7 – Momentum Inertia in motion!!! An object in motion will stay in motion until a force acts to stop it. Momentum = mass x velocity (kg * m/s)
Conceptual Physics 11th Edition
Momentum Conservations Notes
Momentum Notes. Momentum Momentum ( ρ)= Mass x Velocity ρ = mv ρ = momentum (kg·m/s) m= mass (kg) v= velocity (m/s)
Chapter 7 Momentum. Remember: Inertia is the resistance of any moving or nonmoving object to change its state of motion.
Momentum: Unit 5. What is Momentum?  Momentum: ___________ in motion  Momentum= Mass x Velocity  ____________ = Mass x Speed – when direction is not.
Chapter 7: Momentum I. Momentum (7.1) A. momentum– “inertia in motion” 1.Mass of an object multiplied by its velocity Momentum = mass x velocity.
Momentum and Its Conservation Review. Momentum is a ___ quantity scalar 2.vector
Momentum Notes. Momentum Momentum ( ρ) – inertia in motion Mass x Velocity ρ = mv measured in kg·m/s.
Equations: Conservation of Momentum: Vocabulary:. Law of conservation of momentum. Elastic collision. Inelastic collision. Perfectly inelastic collision.
Momentum. Inertia in motion momentum (p) is equal to mass x velocity units for momentum: kg· m/s.
Bell Ringer After reading the article Does slamming on the brakes save your brake pads? Do you believe this saves gas?
8 Momentum The law of conservation of momentum states that, in the absence of an external force, the momentum of a system remains unchanged. 8.4 Conservation.
© 2010 Pearson Education, Inc. Conceptual Physics 11 th Edition Chapter 6: MOMENTUM.
8 Momentum The law of conservation of momentum states that, in the absence of an external force, the momentum of a system remains unchanged. 8.4 Conservation.
IMPULSE.  Discuss with a neighbor what can cause a change in momentum  When either the mass or the velocity of an object has changed  The change in.
Ch.9 Momentum and Its Conservation. 9.1 Impulse and Momentum Momentum (p): the product of the mass (m) of an object and its velocity (v) p = mv An object.
Unit 5 Momentum Impulse Impulse Changes Momentum Bouncing
Momentum and Collisions
Momentum – Impulse Collisions
Momentum is a measure of inertia in motion
Conceptual Physics 11th Edition
Chapter 6 Momentum Impulse Impulse Changes Momentum Bouncing
Chapter 8.
Explain how inertia relates to mass
Chapter 5 Momentum.
Momentum CHAPTER # 5 Momentum.
Conceptual Physics 11th Edition
Momentum CHAPTER # 5 Momentum.
Momentum.
Unit 7 &.
Momentum Ch. 6.
Momentum Chapter 7.1 – 7.4.
LAW OF CONSERVATION OF MOMENTUM
Chapter 6 Momentum Impulse Impulse Changes Momentum Bouncing
Presentation transcript:

CH 5- MOMENTUM BIG IDEA: THE FORCE ACTING ON AN OBJECT MULTIPLIED BY THE TIME THAT FORCE ACTS EQUALS THE OBJECTS CHANGE IN MOMENTUM

5.1 MOMENTUM IS INERTIA IN MOTION Momentum= mass X velocity (momentum = mv) The more momentum something has, the more difficult it is to stop and the larger effect it will have in a collision

5.2 IMPULSE CHANGES MOMENTUM Force and the amount of time a force is being exerted produce acceleration If you exert the same force over a longer period of time, a greater change in momentum results Impulse- the quantity force times the time interval Impulse-momentum relationship: The greater the impulse exerted on something, the greater the change in momentum. Impulse= change in momentum OR Ft= change in mv

5.3 INCREASING MOMENTUM- INCREASE FORCE, TIME, OR BOTH Greatest momentum= greatest force over longest period of time

5.4 PRACTICAL USES OF THE IMPULSE- MOMENTUM RELATIONSHIP If you are in a fast moving vehicle and the brakes fail would you rather be forced to a stop by a wall or by a haystack? The haystack has a softer impact -Either way the momentum decreases by the same amount in coming to rest. By hitting the haystack instead of the wall, you extend the contact time- the time during which momentum is brought to zero.

THE IMPULSE-MOMENTUM RELATIONSHIP IN SPORTS Think about: Force-time-momentum relationship for: Boxers punching, tennis players hitting, Cushioned tennis shows/ mats, etc.

5.5 MOMENTUM IS CONSERVED WHEN NO EXTERNAL FORCE ACTS Internal forces don’t affect momentum To change momentum and outside force is required Law of conservation of momentum: In the absence of an external force, the momentum of a system remains unchanged.

5.6 MOMENTUM IS CONSERVED IN COLLISIONS In any collision we can say: Net momentum before collision = net momentum after collision Elastic collision:when objects collide w/out being permanently deformed and w/out generating heat

Inelastic collision- whenever colliding objects become tangled or coupled together By looking at the figure below we can see that the v is 5m/s. Twice as much mass moves after the collision, with half as much velocity as before the collision.