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Chapter 3 The Gravitational Interaction 2011

# Chapter 3 The Gravitational Interaction 2011 - Chapter 3...

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Chapter 3 The Gravitational Interaction Challenge Exam: How to Prepare square4 Read the book square4 Learn the models, like Electrical model of matter Molecular model of matter Big bang model of the universe The different models of the atom The nebular model of star formation square4 Focus on new concepts Cosmology Plate tectonics The geologic column square4 Answer all the questions at the end of each chapter Last Time square4 Force, acceleration, state of motion square4 Newton’s Laws

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Key Concepts 1. Motion of falling objects (no friction) 2. Understand projectile motion 3. Orbiting objects 4. Universal law of gravitation 5. Cavendish’s gravity experiment 6. Physical interpretation of Einsteinian gravity Quiz When a fly hits your windshield, the reason the fly goes “SPLAT!” is because: a) The force on the fly is much greater than the force on the windshield, so the acceleration of the fly is much greater b) The mass of the windshield is much greater than the mass of the fly, so the acceleration of the fly is much greater. I have read chapter 3 A. Yes B. Sort of C. No, but I feel guilty about it. D. Didn’t read, Don’t care. Gravity square4 A force that causes a uniform acceleration when measured at Earth’s surface. 1 sec. 1 sec. Force of Gravity Velocity Acceleration surface . (Acceleration does decrease slightly with height.) 0.28% reduction on Mt. Everest (We are neglecting air friction.) 1 sec.
square4 The acceleration caused by gravity is constant regardless of the

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Chapter 3 The Gravitational Interaction 2011 - Chapter 3...

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