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PHYS 211 MWF 9-9:50 F08 Study Guide for Test #2 Chapters 5,6,7, & 8 Format will be similar to Test #1, consist of multiple choice questions, regular questions, derivations, and problems. A. You should know the following: 1. 2. 3. 4. 5. 6. 7. Newton’s three laws of motion. Drawing Free-body diagrams. Solving problems with frictional forces. Solving circular motion problems. Work-Energy theorem. Solving problems using conservation of energy principles. Hooke’s law. B. You should be able to define the following: weight, work, power, kinetic energy, potential energy, mechanical energy, conservative, and non-conservative forces. C. The following equations will be provided if needed: 1. Equations of kinematics 1. 2. 1 x x0 (v v0 )t 2 v v0 at 2. Frictional forces: f k k FN 3. x x0 v0 t 4. Centripetal force: F 7. Elastic Potential Energy = U ( x) 1 2 kx 2 9. Work done by a variable force: W t Pins mv 2 R 6. Gravitational Potential energy = U ( y ) mgy 8. Work done by a constant force: W FdCos F d 10. Power: Pavg 1 2 at v 2 v 2 2a( x x ) 0 0 2 f S ,max S FN 1 CAv 2 2 1 5. Kinetic energy: K mv 2 2 3. Drag force: D 4. dW dt Pins F v