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Unit 6: Momentum & Impulse

Explore the concepts of momentum and impulse in collisions, including types of collisions and conservation laws. Learn through fun physics facts, labs, and quizzes. Watch educational videos to deepen your understanding!

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Unit 6: Momentum & Impulse

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  1. Unit 6: Momentum & Impulse

  2. https://www.youtube.com/watch?v=fUot7XSX8uA https://www.nasa.gov/feature/nasa-to-return-humans-to-the-moon Academic – Monday 2/25 Physics Fun Fact Review HW Collision Lab Collisions Formative #2 (Due next class) Collision Recap Quiz & Jeopardy next class! Unit 6 Test: 2/29

  3. https://www.youtube.com/watch?v=fUot7XSX8uA Conceptual – Friday 2/22 Physics Fun Fact Review HW HW recap Summative Discuss Egg Drop Lab Intro Collisions Brief Collision Summative next class -Collision Types & Definitions Unit 6 Test: 2/28

  4. Conceptual – Friday 2/15 Turn in Formative Lab Lab/Hw Recap Summative • Next Class!! Unit 6 Test: week of 2/25

  5. Conceptual – Wednesday 2/13 Unit 5 Test recap Physics Fun Fact Begin Unit 6: Momentum & Impulse Begin Formative (complete for HW) Lab next class Unit 6 Quiz 2/20 Unit 6 Test: week of 2/25

  6. Egg Drop Lab https://www.youtube.com/watch?v=nsnyl8llfH4

  7. Physics Fun Fact – VantaBlack • https://www.youtube.com/watch?v=fg2x0L4YAuU

  8. Impulse • Impulse – Average Force multiplied by the amount of time in which it occurs. J = F ∙ ∆t Unit: [N ∙ s] Often referred to as the Impulse of a Force

  9. Examples • https://www.youtube.com/watch?v=Y2sjYOGSV7E (air bags) • https://www.youtube.com/watch?v=Ats0zSkWtqU • (jump bag) • https://www.youtube.com/watch?v=MpelERSN-5Q (Aric Kansas) • https://www.youtube.com/watch?v=rD8Cr1bU3Qc • https://www.youtube.com/watch?v=7CJAr2idCfw (Kyle Busch Daytona) • https://www.youtube.com/watch?v=xZfRHWXEI6w • https://www.youtube.com/watch?v=9el4ylqZ098 • https://www.youtube.com/watch?v=z_LqZHwoELc (safer Barrier) • https://www.youtube.com/watch?v=4--JOxmvSvk (Kyle Larson) • https://www.youtube.com/watch?v=OMJbYagTwCw (Tires) • https://www.youtube.com/watch?v=hGEZunyAA88 (Tires) • https://www.youtube.com/watch?v=vhu-ZhN1i-0 (Hamlin Tires) • https://www.youtube.com/watch?v=G-vlF9_sY5k (Engineer)

  10. Momentum • Linear Momentum – The product of an object’s mass and velocity p = mv Unit: [kg ∙ m/s]

  11. Impulse – Momentum Theorem • Impulse is equal to the change in momentum! J = F ∙ ∆t = ∆p = m

  12. Motorcycle Helmets

  13. Conservation of Momentum Momentum Initial = Momentum Final po = pf m1v1o + m2v2o = m1v1f + m2v2f

  14. Collisions

  15. Types of Collisions • Elastic: Objects separate after collision. KE is conserved (∆KE = 0J) • Collision between atoms, Space collision, billiard balls? • Think about no loss in velocity • No heat or sound • Inelastic: Objects separate after collision. KE is NOT conserved (∆KE ≠ 0J) • Bouncing Ball, Car Accident, Boxer’s Punch, etc. • A change in velocity can be observed • Heat and Sound are present • Completely Inelastic: An Inelastic Collision in which the object remain together after they collide. • Car Accident, Train cars connecting Momentum is conserved in all types of collisions

  16. Collisions https://www.huffingtonpost.com/entry/the-worst-collision-of-orbiting-satellites-and-space_us_59406ffee4b04c03fa26166e

  17. Collision Equations Elastic & Inelastic: m1v01 + m2v02 = m1vf1 + m2vf2 Completely Inelastic: m1v01 + m2v02 = (m1+ m2) vf

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