PPT-Impulse and Changes in Momentum: Crumple Zone

Chapter 3 Section 7 Date HW PTG 18 pg 332 Learning Objective Explain collisions in terms of Newtons Laws momentum and impulse Success Criteria Define impulse Explain conservation of momentum. Crumple Zones are designed to absorb the kinetic energy from impact during an accident by controlled deformation Usually crumple zones are found in the front part of a vehicle in order to absorb the impact of a head on collision though they can also Learning Objectives This activity give s students an approachable perspective on watersheds by making simple watershed models Geography Modeling 4 Geology Scale Watersheds Making Models Advance Preparation Set Up Activity Clean Up 15 minutes 15 minu zone zonezone zone zone zone zone N Dynamics. Crumple Zones. A crumple zone is the zone of an object that absorbs energy upon impact. The purpose of the crumple zone is to increase the amount of time it takes an object to come to rest.. Crumple Zone Lab. Define the Problem:. Develop impulse - momentum theorem. Investigate applications of impulse in design (safety, sports, etc.). Discuss causes of injury in accidents. Bring in industry experts if possible.. By. Mr. Lewis. Rocket History. . 1. st. solid fuel rockets were made by the Chinese before the 1200s. . - made with gunpowder. - brought to Europe during the 1200’s. - used for warfare, but were not accurate. - Class . 14. Today:. Momentum and Impulse. Conservation of Momentum. Collisions, Explosions. Pre-class Reading Quiz. (Chapter. 9). Last day I asked at the end of class:. Consider . a car accident in which a car, initially traveling at 50 km/hr, collides with a large, massive bridge support.. https://. www.youtube.com/watch?v=hTZI-kpppuw. A truck rolling down a hill has more momentum than a roller skate with the same speed. But if the truck is at rest and the roller skate moves, then the skate has more momentum. Moving objects can have a large momentum if it has a large mass, a high speed or both.. Pg. 222- 227. Momentum & Impulse. The driver of this race car walked away from the car without a scratch. Luck had little to do with this fortunate outcome though – a practical application of Newton’s laws of motion by the engineers who designed the car and its safety equipment protected the driver from injury. IMPULSE AND MOMENTUM. I. IMPULSE. A baseball hits a bat.. The velocity of the bat changed. (Vf-Vi). The velocity of the ball changed. (Vf-Vi). Vi. Vf. Vi. Vf. B. NEWTON’S 3. rd. Law. For every action (ball hitting bat), there is an equal and opposite reaction (bat hitting ball).. You’re Quite Impulsive. A Review of What We Know About Motion. Chapters 2 & 3 introduced us to vectors such as displacement, velocity, and . acceleraton. No mass was included. Chapter 4 introduced forces and mass into the mix. and . Collisions. Momentum. Impulse. Impulse-Momentum . theorem. Conservation of . linear momentum. Collisions. Momentum. , p. The linear momentum . p. of an object is the product of the object’s mass . … to change equilibrium states!. We have seen that…. …. equilibrium . is a. self-sustained state. ;. We have seen that…. … equilibrium is a self-sustained state;. …. objects in equilibrium . Momentum. Measures how hard it is to stop a moving object.. Momentum can be defined as . "mass in motion.". . All objects have mass; so if an object is moving, then it has momentum - it has its mass in motion. .