| Unit Five: Newton's Second Law of Motion Objectives |
| 5.1 Force Causes Acceleration 1. State the relationship between acceleration and net force. 5.2 Mass Resists Acceleration 2. State the relationship between acceleration and mass. 5.3 Newton's Second Law 3. Explain what is meant by the terms directly proportional and inversely proportional. 4. State and explain Newton's second law of motion. 5. Solve problems using Newton's second law equation. 5.4 Friction 6. Define friction. State several sources of friction. 7. Explain the difference between static and kinetic friction. 8. Describe the effect of friction on a stationary and on a moving object. Class Notes 9. Solve motion problems involving friction - applying the concepts of the coefficients of friction. 5.5 Applying Force - Pressure 10. Explain the difference between force and pressure. 5.6 Free Fall Explained 11. Apply Newton's second law to explain why the acceleration of an object in free fall does not depend upon the mass of the object. 12. Describe how weight, force, and mass are related. 5.7 Falling and Air Resistance 13. Describe what happens to the acceleration and the speed of a falling object when there is air resistance. 14. Define terminal speed and terminal velocity. Misconceptions Note: The following statements are all FALSE!!! 1. If an object has zero acceleration, it must be at rest. 2. Pressure and force are the same. 3. Heavy objects always fall faster than light objects. 4. Objects have no weight in a vacuum. |