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Physics of Momentum and Collisions Explained

Dive into the principles of momentum, impulse, and collisions in physics. Learn about elastic and inelastic collisions, Newton's laws, and how to calculate forces. Discover the impact of momentum on various objects and understand the equations involved.

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Physics of Momentum and Collisions Explained

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  1. Jeopardy $100 $100 $100 $100 $200 $200 $200 $200 $300 $300 $300 $300 $400 $400 $400 $400 $500 $500 $500 $500

  2. Momentum for $100 True or False? Ropes minimize momentum if a slip occurs while rock climbing. Answer

  3. Impulse for $100 True or False? The impulse of a force, F, acting on an object is more than the product of the force and the time interval during which the force act. Answer

  4. Inelastic Collision for $100 An inelastic collision is a collision in which momentum is ________ and kinetic energy is ________. Answer

  5. Elastic Collision for $100 In an elastic collision momentum is ________ and kinetic energy is ________. Answer

  6. Momentum for $200 • The formula for momentum is: • m=md • b. m=fv • c. p=fd • d. p=mv Answer

  7. Impulse for $200 A change in impulse equals a change in _________? Answer

  8. Inelastic Collision for $200 What is an inelastic collision? Answer

  9. Elastic Collision for $200 What is an elastic collision? Answer

  10. Momentum for $300 Can a bullet have the same momentum as a truck? Explain. Answer

  11. Impulse for $300 What is the units for impulse? Answer

  12. Inelastic Collision for $300 What will happen to a bug and a truck when they undergo an inelastic collision? Answer

  13. Elastic Collision for $300 What will happen if a 110lb person set a screen in a basketball game on a 170lb person? Answer

  14. Momentum for $400 Which one of Newton’s Laws does this refer to: Rates of change of a body is proportional to net force applied to it. Answer

  15. Impulse for $400 What is the equation for the impulse-momentum theorem? Answer

  16. Inelastic Collision for $400 • What is an example of an inelastic collision? • when you drop a glass bowl from the counter • when you shoot a basketball at the backboard • when one freight car hit another one at rest • when you slide down a water slide Answer

  17. Elastic Collision for $400 What is an example of an elastic collision? a. When you throw an egg at the window b. When a pool ball hits another c. When you jump in a pool and make a splash d. When a candle melts and drips on the candle Answer

  18. Momentum for $500 How fast must a 0.15kg tennis ball travel to have the same momentum as a 900kg Chevy Avalanche going 20 m/s? Answer

  19. Impulse for $500 What force must a person hit a stationary 0.12kg soccer ball if the force last for .02 seconds and the ball moves with a speed of 20 m/s? Answer

  20. Inelastic Collision for $500 When a 80kg guy is roller skating at a speed of 6m/s and runs into a 40kg girl at rest, what is the velocity after the collision? Answer

  21. Elastic Collision for $500 A bowling ball of mass 6kg moving at 5m/s strikes a pin of mass 0.8kg. The pin flies off with a velocity of 10m/s. How fast is the bowling ball now moving? Answer

  22. Momentum - $100 True During rock climbing nylon ropes stretch to extend force over a period of time decreasing the force of momentum Next

  23. Impulse - $100 False The impulse of a force, F, acting on an object is equal then the product of the force and the time interval during which the force acts Next

  24. Inelastic Collision - $100 Inelastic collision is a collision in which momentum is conserved and kinetic energy non-conserved. Next

  25. Elastic Collision - $100 In an elastic collision both momentum and kinetic energy is conserved. Next

  26. Momentum - $200 D. p=mv Next

  27. Impulse - $200 Momentum Next

  28. Inelastic Collision - $200 When an object sticks together with another object Next

  29. Elastic Collision - $200 When an object collides with a 2nd object and the momentum of the 1st object to bounce off each other. Next

  30. Momentum - $300 Yes it depends on force and time of each object. Next

  31. Impulse - $300 Newtons (seconds) Next

  32. Inelastic Collision - $300 The bug will stick to the truck. Next

  33. Elastic Collision - $300 The 110lb person will bounce off the 170lb person. Next

  34. Momentum - $400 Newton’s Second Law F=ma Next

  35. Impulse - $400 f(change in time)=mvf-mvi Next

  36. Inelastic Collision - $400 C – When one freight car hits another because they stick together Next

  37. Elastic Collision - $400 B- when a pool ball hits another because the energy from the first ball is transferred to the next ball and they don’t stick together Next

  38. Momentum - $500 Givens: m=900kg v=20m/s p=mv p=900(20) p=18,000 m=.15kg v=? p=mv 18000=.15v v=120,000m/s Next

  39. Impulse - $500 F x t = m (change in velocity) F (.02sec) = .12kg (20m/s) F (.02sec) = 2.4 F = 120 N Next

  40. Inelastic Collision - $500 m1v1+m2v2= m1v1+m2v2 80(6)+40(0)=80(v)+40(v) 480=120v2 360=v2 v= 18.97 m/s Next

  41. Elastic Collision - $500 m=0.8kg v=10m/s p=mv p=0.8(10) p=8kg m/s Givens: m=6kg v=5m/s p=mv p=6(5) p=30kg m/s m1v1=m2v2 6(5)=.8(10) 30=8 30-8= 22kg m/s Next

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