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Class Presentation

Class Presentation. Motion & Design Grade 4. Written by Renee Valentine for Walled Lake Schools. Load (weight). What question can be answered by doing this experiment? ________________________________________________________________________________.

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Class Presentation

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  1. Class Presentation Motion & Design Grade 4 Written by Renee Valentine for Walled Lake Schools

  2. Load (weight) What question can be answered by doing this experiment? ________________________________________________________________________________ What is the best way to get accurate results? ____________________________________________________________________________________________________ Repeat the experiment several times. How does load affect motion? Compare your results with other groups.

  3. Tire Note: After the rubber band is wound & before this car moves, it has potential energy. When it is moving, it has kinetic energy. How can we get this car to move forward? Wind the rubber band several times over the back axle. The more times you wind the rubber band the farther the car will go. The tires are important because they provide traction (friction) for the car so it can move.

  4. Front tire Front tire Measuring Distance and Speed Start Finish What metric unit should be used to measure the distance a K’NEX car moved? _________________ _________________________________________ What should be used to measure speed of a vehicle? ____________________________________________________________________________________ Centimeters, always measure from the same point. Measure the distance and the time it took to go that distance.

  5. Kinetic energy have Objects in MOTION have have Direction Speed can change because of described as described as Forces east, west, north, south, right, left, up, down fast, slow, faster, slower like friction & gravity

  6. FORCES are pushes or pulls like like gravity friction is due to the is the makes rubbing of objects pull of objects toward earth things slow down

  7. Simple Machines are wheel & axle need inclined plane less force to move an object pulley lever wedge

  8. Simple Machines Wheel and Axle A wheel and axle makes it easier to move an object across a surface. It reduces friction between the object and the surface. are wheel & axle need inclined plane less force to move an object pulley lever wedge

  9. Simple Machines Inclined Plane An inclined plane makes it easier to move an object to a higher place. are wheel & axle need inclined plane less force to move an object pulley lever wedge

  10. Simple Machines Pulley A pulley lets you use your own weight to help lift an object. are wheel & axle need inclined plane less force to move an object pulley lever wedge

  11. Simple Machines are Lever A lever can help make it easier to move an object. wheel & axle need inclined plane less force to move an object pulley lever wedge

  12. Simple Machines are Wedge A wedge makes it easier to split an object apart. wheel & axle need inclined plane less force to move an object pulley lever wedge

  13. Student Handouts Motion & Design Grade 4

  14. What question can be answered by doing this experiment? ________________________________________________________________________________ What is the best way to get accurate results? ____________________________________________________________________________________________________

  15. How can we get this car to move forward?

  16. Measuring Distance and Speed Start Finish What metric unit should be used to measure the distance a K’NEX car moved? _________________ _________________________________________ What should be used to measure speed of a vehicle? ____________________________________________________________________________________

  17. have Objects in MOTION have have can change because of described as described as like

  18. FORCES are like like is due to the is the makes

  19. Simple Machines are need

  20. Wheel and Axle A wheel and axle makes it easier to move an __________ across a ___________. It reduces ___________ between the object and the surface. Lever A lever can help make it easier to ________ an object. Inclined Plane An inclined plane makes it easier to move an object to a __________ place. Wedge A wedge makes it easier to _________ an object apart. lever Pulley A pulley lets you use your own ________ to help lift an object.

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