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Explore the concept of momentum, factors influencing it, and the role of impulse in physics. Engage in demos and problem-solving to deepen your understanding. Learn how to calculate momentum and impulse in various scenarios.
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Just a few Q’s • What is your understanding of momentum? • What factors cause an object to have momentum? • If an object has momentum, what does that tell you about it?
Notes:Momentum: Momentum is like inertia in motion. Momentum = Mass x Velocity Or p = mv Problem: A .2kg baseball approaches the plate with a velocity 20m/s. Find its momentum.
Balloon Toss Demo: Get a partner and fill one balloon. Referrals to those who throw them at each other.
Impulse: Change in momentum Derivation: When objects are stopped slowly….. When objects are stopped quickly….. (Demo: Desk Jump)
Sample Problem 1: Find the following for a .5kg baseball when colliding with a wall and coming to a stop from 10m/s. • Impulse b) Force to stop in .009s
Sample Problem 2: Find the following for the .5kg ball: a) Change in momentum b) Impulse c) Force to stop in .009s
Reduce the impact force, so don’t forget to wear your helmet!
Warm-up: Find the Impulse for Each Situation. The mass of the car is 1000kg
Impulse Demos: • Egg toss • Chair Jump • Balloon Toss
Egg Launch Lab Objective: Wrap three eggs in a container so that when launched against a wall, they will not break. Grading: No eggs break- 20/20 1 egg breaks – 17/20 2 eggs break – 14/20 3 eggs break – 10 /20