Conservation of Momentum. Momentum  The velocity and mass of an object give it momentum.  The larger the velocity and mass, the larger the momentum.

Slides:



Advertisements
Similar presentations
Momentum and Impulse. What is Momentum? Momentum – The product of the mass and velocity of an object. Has magnitude and direction. Momentum = p = mv P.
Advertisements

Linear Impulse − Momentum
Conservation of Momentum
Chapter 7 Page  Mass in motion  Inertia in motion  It is a vector quantity 2.
Aim: What is the law of conservation of momentum? Do Now: A 20 kg object traveling at 20 m/s stops in 6 s. What is the change in momentum? Δp = mΔv Δp.
Momentum.
Section 73 Momentum.
Principles of Physics. - property of an object related to its mass and velocity. - “mass in motion” or “inertia in motion” p = momentum (vector) p = mvm.
Chapter 18 Section 3 Collisions. Mass Mass is the amount of matter in an object The mass of an object affects how easy it is to changes its motion.
1 PPMF102– Lecture 3 Linear Momentum. 2 Linear momentum (p) Linear momentum = mass x velocity Linear momentum = mass x velocity p = mv p = mv SI unit:
Collisions.
Momentum and Impulse. Answer Me!!! Forces cause objects to start moving. What keeps an object moving after the force is no longer applied?
Chapter 10 Forces Objects will not begin to move or change motion until an unbalanced force acts on it. Newton’s 1st Law of Motion Inertia All mass resists.
Chapter 2, Section 3 Momentum Notes. Momentum, Mass and Velocity.
Momentum The world is filled with objects in motion. Objects have many properties such as color, size, and composition. One important property of an object.
1.To understand what momentum is 2.To understand conservation of momentum and to be able to complete related calculations 3.To understand different types.
Chapter 8 Conservation of Linear Momentum Linear momentum; Momentum conservation Impulse Total kinetic energy of a system March 9, 2010.
We define the Momentum of an object as: Momentum = mass x velocity p = m v Momentum is measured in kg ms -1 Momentum is a vector quantity. (size and direction)
Warm Up 1/30/08 1) A 40 kg child is rollerblading down a hill at 15 m/s. What is the momentum of the child? 2) A 20 N force acts on a 5 kg object for 4.
Impulse and Momentum Dr P Ramalingam October 13, 2007.
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.
Momentum is what Newton called the “quantity of motion” of an object. Momentum.
$100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300.
3.1 The 3 rd Law of Motion, Momentum and Impulse.
Abelardo M. Zerda III Michael O. Suarez Jm Dawn C. Rivas Leslie Kate Diane Berte.
 Momentum – the motion of mass  If an object is moving, it has momentum ▪ An object with lots of momentum will be hard to stop. ▪ An object with little.
MOMENTUM AND COLLISIONS. Momentum is similar to inertia - the tendency of an object to remain at a constant velocity. Where as inertia depends only.
Momentum. What is Momentum? Momentum – tendency of objects to keep going in the same direction with the same speed –Depends on mass and velocity –Has.
Unit 2 Momentum and Impulse An Introduction to Momentum.
Momentum Chapter 2.3.
Momentum Notes. Momentum Momentum ( ρ)= Mass x Velocity ρ = mv ρ = momentum (kg·m/s) m= mass (kg) v= velocity (m/s)
Momentum Anything which is moving has MOMENTUM. The amount of momentum it has depends on:- 1. MASS (kg) 2. VELOCITY (m/s)
1. How does the change in momentum compare between a quick stop (collision) and a controlled stop (braking) from the same velocity? Why?
Physics Section 6.3 Apply the physics of collisions Inelastic collision – two objects stick together after colliding. The two objects become one object.
1. What is the difference in elastic and inelastic collisions?
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.
Types of Collisions Elastic Two objects collide and bounce off each other Inelastic Two objects collide and stick together Explosion One object separates.
Newton ’ s Third Law  for every action force, there is an equal and opposite reaction force.  Forces always occur in action-reaction pairs. Action-reaction.
Newton’s 3rd Law of Motion & Momentum
Momentum Imagine a cannon: When the cannon fires it applies a force to the cannon ball of mass m B given by the equation: F = m B A Boom But we have another.
Chapter 6 - Forces In Motion Section 3 – Momentum pp
Momentum A quantity defined as the product of the mass and velocity of an object.
Chapter 6. When objects collide their motion changes and this is the result of a concept called momentum. Momentum = mass x velocity p = mv kgm/s or Ns.
Momentum and collisions. What is momentum?  Momentum is the mass and velocity of a moving object. We find it mathematically using the formula: p = mv.
AIM: ? OBJ: Given notes and activity sheet SWBAT with 70% accuracy DN: ACT: HW:
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 The property of moving object has that makes it difficult to stop. (technically, product of mass and velocity) Formula: p = mv.
12.1 Momentum Momentum is a property of moving matter.
Physics Section 6.2 Calculate the momentum of collisions
Momentum.
Writing Prompt: 10/26/2006 Predict what will happen if a 250 lb. safety runs into a 140 lb. punt returner who was standing still to catch a punt during.
Momentum:.
Momentum.
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.
POWER.
Elastic Collisions SPH4U.
Chapter 6 Review A ball collides with a stationary ball of the same mass in an elastic head-on collision. After the collision, what happens to the first.
Momentum “Keep Goingness” of an object. p = mv where p = momentum
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.
Momentum.
As we watch this video….. think about these questions:
Conservation of Momentum
Collisions Momentum is always conserved in collisions
Momentum Mass X Velocity.
Momentum “Keep Goingness” of an object. (demo air track) p = mv where
1D Collisions Unit A Momentum.
Conservation of Momentum
GRAVITATIONAL POTENTIAL & KINETIC ENERGY
Presentation transcript:

Conservation of Momentum

Momentum  The velocity and mass of an object give it momentum.  The larger the velocity and mass, the larger the momentum. p = momentum (kgms -1 ) m = mass (kg) v = velocity (ms -1 )  The velocity and mass of an object give it momentum.  The larger the velocity and mass, the larger the momentum. p = momentum (kgms -1 ) m = mass (kg) v = velocity (ms -1 ) p = mv

Example 1  What is the momentum of a 50 g tennis ball hit at 80 kmh -1 ?  What is the momentum of an electron moving at 0.1c ?  What is the momentum of a 50 g tennis ball hit at 80 kmh -1 ?  What is the momentum of an electron moving at 0.1c ?

Momentum transfer  One object can transfer momentum to another (eg Newton’s Cradle)

Momentum transfer  One object can transfer momentum to another (eg Newton’s Cradle)

Momentum transfer  One object can transfer momentum to another (eg Newton’s Cradle)

Momentum transfer  One object can transfer momentum to another (eg Newton’s Cradle) momentum transfer

Momentum transfer  One object can transfer momentum to another (eg Newton’s Cradle)

Momentum transfer  One object can transfer momentum to another (eg Newton’s Cradle)

Conservation of Momentum  Total momentum is conserved in collisions (that is, the initial and final momenta are the same)  The formula above is for a collision between two masses m 1 and m 2.  Total momentum is conserved in collisions (that is, the initial and final momenta are the same)  The formula above is for a collision between two masses m 1 and m 2. p initial = p final m 1 u 1 + m 2 u 2 = m 1 v 1 +m 2 v 2

Conservation of momentum in Collisions Applet 1 (two masses) Applet 2 (canon and Carriage)

Example 2  A 100 g billiard ball travelling at 3 ms -1 to the right collides with a stationary ball of mass 120 g. The 120g ball moves to the right with a speed of 2 ms -1. What is the final velocity of the 100g ball?