Force and Motion

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Lesson Plan 1 Force and Motion Physical Science 5th-8th grade NCES Standard: Properties and changes in properties in matter, motion and forces and transfer of energy Objectives: Students will * Demonstrate an understanding of speed, gravity, force and friction * Demonstrate an understanding that friction and force affect motion and speed * Experiment with friction and mass and the effects it has on motion and speed Procedure: 1. Show a short video on forces and motion. 2. Discuss with students concepts of motion such as how objects might move. 3. Discuss forces that are at work in the world. 4. Provide examples of gravity and friction and ask students to describe as example as well. 5. Demonstrate quick example of motion and force by making a ramp using blocks and plywood and show students by pushing a wheeled toy such as a wagon or car down the ramp. Using a stopwatch measure the speed and measure the distance with a meter stick. 6. Discuss with the students the forces, what made the toy move, why does it not move faster, talk about gravity and friction and its effects it had on the car. 7. Divide students in groups on 4-5 and provide them with materials to conduct their own experiments. Instruct students to set up their ramps and allow time for them to figure out which height for the ramp allows the car to go the furthest and fastest. 8. Question students about the angles of the ramp in terms of increasing and decreasing and speed and distance of car. 9. Have students record the stacking material used for ramp and its height and record the distance and speed of the car when they push it down the ramp. Do this three times and record each time. 10. Next give the students per group two coins (pennies) and have them tape it on top of the car. Have them make a hypothesis if the additional weight would cause the car to move slower or

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