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MOMENTUM CO.pptx
- 1. The laws of motion @ work Momentum & impulse
- 2. TODAY, WE'LL LEARN ABOUT... Understand the concept of momentum, Calculate the momentum using appropriate formulas, and Apply the principles of momentum to real-life scenarios.
- 4. NOT A LAW STUDENT BUT, DO YOU REMEMBER THE 3 LAWS OF MOTION? Law of Acceleration Law of Action- Reaction
- 5. RELATIONSHIP BETWEEN FORCE AND MOTION An object free to move will move once acted upon by force. INERTIA IN MOTION
- 6. WHAT DOES IT MEAN WHEN THEY SAY THE TEAM IS GAINING ITS MOMENTUM?
- 7. MOMENTUM IS A QUANTITY IN MOTION. IT IS A VECTOR QUANTITY. ISAAC NEWTON'S IDEAS
- 8. kg.m/s kg m/s Units kay wrong unit wrong answer!
- 10. WHICH HAS MORE MOMENTUM? QUESTION O1 A . . . A GARBAGE TRUCK AT REST A FLYING MOSQUITO A BOY WHO WAS RUNNING FOR CUM LAUDE A B C
- 11. What is THE MOMENTUM OF AN OBJEC RUNNING AT 40 m/s with a mass of 60 Kg? QUESTION O1 A . . . 1.5 kg m/s 240 kg.m/s 2400 kg.m/s A B C
- 12. LAW OF CONSERVATION OF MOMENTUM The total momentum of a system is always conserved for an isolated system.
- 14. THIS IDEAS LAUNCHED ROCKET SHIPS! DO YOU HAVE MORE IDEAS?
- 15. NEWTON'S SECOND LAW OF MOTION The Law of Acceleration states that the acceleration of an object with constant mass is proportional to the net force action on it and is in the same direction of the net force
- 16. The CHANGE in MOMENTUM The car will not decelerate if FORCE will not be applied against it.
- 17. IMPULSE
- 19. APPLICATION
- 20. Together with a FRIEND, find different ways of PROTECTING your egg in an egg drop activity tomorrow ACTIVITY ANNOUNCEMENT
- 21. PRACTICE PROBLEM A 57 GRAM TENNIS BALL FALLS ON A TILE FLOOR. THE BALL CHANGES VELOCITY FROM -1.2 M/S TO +1.2 M/S IN 0.02 S. WHAT IS THE AVERAGE FORCE ON THE BALL? IDENTIFY THE VARIABLES: MASS = 57 G = 0.057 KG ΔVELOCITY = +1.2 – (-1.2) = 2.4 M/S TIME = 0.02 S USING FΔT= MΔV F X (0.02 S) = (0.057 KG)(2.4 M/S) F= 6.8 N
- 22. Car Crash Would you rather be in a head on collision with an identical car, traveling at the same speed as you, or a brick wall? Assume in both situations you come to a complete stop. Take a guess http://techdigestuk.typepad.com/photos/uncategorized/car_crash.JPG
- 23. Car Crash (cont.) Everyone should vote now Raise one finger if you think it is better to hit another car, two if it’s better to hit a wall and three if it doesn’t matter. And the answer is…..
- 24. Car Crash (cont.) The answer is… It Does Not Matter! Look at FΔt= mΔv In both situations, Δt, m, and Δv are the same! The time it takes you to stop depends on your car, m is the mass of your car, and Δv depends on how fast you were initially traveling.
- 25. Egg Drop connection • How are you going to use this in your egg drop? Which of these variables can you control? FΔt= mΔv Which of them do you want to maximize, which do you want to minimize (note: we are looking at the force on the egg. Therefore, m represents the egg mass, not the entire mass of the project)
- 27. NEWTON'S THIRD LAW OF MOTION The Law of Action and Reaction Every action force has a reaction force that is equal in size and opposite in direction.
- 28. The Law of Action and Reaction On a rocket launch, the shuttle exerts a downward force, and the reaction force of the same size pushes it upward.
- 29. IT'S A WRAP! Force and motion are related because motion is a result of force.
- 30. Reference Anthony, Elizabeth, et al. “What Are Newton's Laws?” OER Commons, University of California Davis, 2013, https://www.oercommons.org/courses/what-are-newton-s-laws/view.
- 31. Use these icons and illustrations in your Canva Presentation. Happy designing! Don't forget to delete this page before presenting. Resource Page
- 32. Try this background for online class. *Please delete this section before downloading.
- 33. for bubbles for unveil Press these keys while on Present mode! for confetti for a drumroll Any number from 0-9 for a timer for blur for quiet for mic drop
Editor's Notes
- Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton's second law of motion states that the time rate of change of momentum is equal to the force acting on the particle.
- the amount of momentum remains constant; momentum is neither created nor destroyed, but only changed through the action of forces as described by Newton's laws of motion.
- HOW HARD IS IT TO STOP A MOVING OBJECT?
- If Δt goes up, what happens to F, the force? Right! Force goes down. When dropped on a pillow, the egg starts to slow down as soon as it touches it. A pillow increases the time the egg takes to stops.