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OPERATION PHYSICS FORCE & MOTION MATRIX I. Space A. Space is 3-dimensional. 1. Focus on Physics: Space Disc. U 10 min. B. Both distance and direction are needed to describe the location of an object in space. 1. Where Is It? Lab L 30 min. 2. The Treasure Hunt Lab L 30 min. 3. The Traveling Washer Lab U 30 min. II. Time A. Time is needed to describe the rate at which changes occur. 1. Focus on Physics: Time Disc. U 10 min. 2. Why and How Humans Tell Time Lab L/U 15 min. B. Any event that occurs at regular intervals can be used to measure longer intervals of time. 1. Measuring Elapsed Time With a Pendulum Lab L/U 40 min. 01/24/13 1:06 PM 1 C:\Docstoc\Working\pdf\73f7f3c7-21bc-40db-9051-8c8dede2ddb5.doc OPERATION PHYSICS FORCE & MOTION MATRIX III.Speed and Velocity A. Average speed is calculated by dividing distance traveled by the elapsed time. It does not include the direction of travel. 1. Finding Average Speed Lab L/U 45 min. 2. Predicting an Unknown Position Lab L/U 45 min. 3. Predicting an Unknown Time Lab L/U 45 min. 4. Can You Walk at a Constant Speed? Lab L/U 45 min. 5. How Fast Can You Run? Lab L/U 45 min. 6. How Fast Is It? Disc. U 30 min. B. Average velocity is calculated by dividing displacement by elapsed time. It is a vector so it includes the direction of travel 1. Velocity Isn't Speed Lab L/U 30 min. 2. Walking Around a Square Lab L/U 30 min. 3. The Flying Plane Disc./Demo L/U 30 min. C. Instantaneous speed and velocity describe the motion at a specific instant. 1. interstate Highway Story Disc. L/U 10 min. 2. Speed and Velocity Disc./Demo, L/U 30 min. 3. Speeding Up Lab L/U 40 min. IV. Acceleration A. An object accelerates when it changes speed. Acceleration is a vector which does not always point in the direction of motion. 1. Rolling on an Inclined Plane Lab U 40 min. 2. Speeding Up and Slowing Down Disc. U 30 min. 3. Classifying Motion Lab L/U 45 min. B. Because acceleration is a vector, an object which changes direction is accelerating even if it is not changing speed. 1. Acceleration in Circular Motion Lab L/U 20 min. 2. Acceleration When Speed and Direction Change Lab L/U 30 min. C. The units of acceleration show that it is calculated by dividing the change in velocity by the elapsed time. 1. Focus on Physics: Acceleration Units and Their Meaning Disc. U 10 min. 01/24/13 1:06 PM 2 C:\Docstoc\Working\pdf\73f7f3c7-21bc-40db-9051-8c8dede2ddb5.doc OPERATION PHYSICS FORCE & MOTION MATRIX V. Motion When No Forces Act (Inertia) A. When an object is at rest the forces acting on it are in balance. 1. Motion and Force Disc 15 min 2. The Coin and The Glass Lab L/U 20 min B. Objects in motion will not change velocity when there is no net force acting on them. 1. Inertia Lab LIU 20 min 2. Inertia-Newton's First Law of Motion Disc 15 min 3. Riding on Air Lab L/U 30 min VI. Forces in Balance A. When an object is at rest the forces acting on it are in balance. 1. Finding the Forces Lab U 90 min 2. Elasticity Lab U 40 min 3. The Undercover Scale Disc 15 min B. When an object has a constant velocity the forces acting on it are in balance. 1. Balanced Vertical Forces Lab LIU 20 min 2. Balanced Horizontal Forces Lab L/U 20 min C. The force of friction is not a fixed force. It both hinders and helps motion. 1. How Strong Is Friction? Lab L/U 20 min 2. What Happens to the Speed of the Marble? Lab U 30 min 3. How Can You Reduce Frictional Force? Lab L 20 min 4. What is Frictional Force? Disc 10 min 5. Why Do You Oil Machines Disc 10 min 6. Why Use Wheels? Disc 10 min 01/24/13 1:06 PM 3 C:\Docstoc\Working\pdf\73f7f3c7-21bc-40db-9051-8c8dede2ddb5.doc OPERATION PHYSICS FORCE & MOTION MATRIX VII. Unbalanced Forces Cause Acceleration ( A is proportional to Net Force) A. When the net force is parallel to the motion, an object accelerates in a straight line. The value of the acceleration is proportional to the net force. 1. Force and Acceleration Disc 10 min 2. Acceleration is Proportional to Net Force Lab U 30 min 3. Paper and Book Drop Disc 10 min 4. The Falling Cup Disc 10 min C. When the net force is perpendicular to the motion, an object moves in a circle at constant speed. This is an accelerated motion. 1. Force on a Rope Lab L/U 20 min 2. A Circle of People Disc 15 min 3. Dead man's Curve Lab LIU 20 min 4. The Spinning Stopper Lab U 30 min 5. Centripetal Force and Circular Motion Disc VIII. Additional Ideas About Forces A. There is only two basic types of force: gravity and electromagnetism. 1. Types of Force Disc 15 min B. Forces always come in pairs. One force in the pair is always equal and opposite to the other. 1. Who Exerts the Greater Force? Disc L/U 45 min 2. Are Forces Equal in a Collision? Disc L/U 45 min 3. Which Magnet Pushes Harder? Disc L/U 15 min 4. Which Rubber Ban Exerts the Greater Force? Lab L/U 30 min 5. Sprinklers and Rockets Disc LIU 20 min 6. Forces and Rockets Lab L/U 30 min 7. Newton's Third Law Disc 15 min 8. Is Pressure the Same as Force? Lab L/U 15 min C. Review 1. Playground Physics Disc 20 min 01/24/13 1:06 PM 4 C:\Docstoc\Working\pdf\73f7f3c7-21bc-40db-9051-8c8dede2ddb5.doc

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posted: | 1/24/2013 |

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