Common exam results – Min 0 – Max 18, but graded out of 16 For this group, High 18, low 2 – Average 11.5 which corresponds to a ‘B’ What are the next.

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Common exam results – Min 0 – Max 18, but graded out of 16 For this group, High 18, low 2 – Average 11.5 which corresponds to a ‘B’ What are the next steps? (a) If you did well, keep doing what you are doing… its working (b) If you did not do well, figure out what things you need to change. Did you do the HW problems? Are you coming to class? Do you need extra tutoring? Can you do the Practice problems but have difficulty with the exam problems? Start studying for the final exam NOW.

Is the energy conserved? http://www.lghs.net/ourpages/users/dburns/RRPhysics/Road_Runner_Physics/Movie_files/RollingBoulder.mov http://www.lghs.net/ourpages/users/dburns/RRPhysics/Road_Runner_Physics/Movie_files/Pendulum.mov

Iclicker Question #1 Which of the following characters from “The Big Bang Theory” is from New Jersey? Sheldon Cooper Leonard Hofstadter Howard Wolowitz Raj Koothrappali Penny

Potential Energy of Spring

Iclicker Question #2 In which of the following is not a form of energy? gasoline Waves on the ocean A mass which is not moving light Heat from a hot car engine

Iclicker Question #3 In which of the following is energy lost? A swinging pendulum A block sliding UP a frictionless incline A block sliding across a rough floor A meteor falling to earth A collision of a rubber ball with the ground

Energy diagrams

Energy diagrams

Unstable Equilibrium in the Movies Jurassic Park (1993) “Living systems are never in equilibrium. They are inherently unstable. They may seem stable, but they’re not. Everything is moving and changing. In a sense, everything is on the edge of collapse.” ― Michael Crichton, Jurassic Park http://www.youtube.com/watch?v=n-mpifTiPV4 Start at 1:00

Iclicker Question #4 In the movie ‘The Avengers’, what causes the ‘instability’ which causes Bruce Banner to change into The Hulk? The Federal government shutdown Too much caffeine... Bruce Banner gets sad Bruce Banner gets angry Bruce Banner gets hungry