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U2C2A2

U2C2A2. Record Sheet. Key Question : How can you change the motion energy of an object?. In other words , what happens to cause an object to increase or decrease in motion?. Explore Your Ideas. p 159. Explore Your Ideas. Refer to How to Identify Mechanical Interactions pages 638-639.

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U2C2A2

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  1. U2C2A2 Record Sheet

  2. Key Question: How can you change the motion energy of an object? In other words, what happens to cause an object to increase or decrease in motion?

  3. Explore Your Ideas p 159

  4. Explore Your Ideas Refer to How to Identify Mechanical Interactions pages 638-639

  5. 14

  6. elastic interaction

  7. drag interaction

  8. applied interaction

  9. drag interaction

  10. friction interaction

  11. applied interaction

  12. friction interaction

  13. elastic interaction

  14. drag interaction

  15. applied interaction

  16. applied interaction What is the interaction between the girl and the bike?

  17. drag interaction

  18. elastic interaction

  19. friction interaction

  20. drag interaction

  21. applied interaction

  22. elastic interaction

  23. applied interaction

  24. friction interaction

  25. drag interaction

  26. Explore Your Ideas Step 1 p 160 * students need 5 min to complete the chart

  27. Ball’s motion energy decreases net & soccer ball elastic Ball slows down

  28. Player decreases in motion energy friction Player slows down player & ground

  29. drag Parachute/car slows down Parachute/car & air Parachute/cardecreases in motion energy

  30. Explore Your Ideas Step 2 bottom of page 160

  31. Objects you may SAFELY use: parachuter (see teacher) bouncy ball pinballmachine nerf football rubberbands (see teacher) hot wheel cars noise-maker paper airplane (yellow paper) paddle-ball a piece of styrofoam block

  32. friction drag elastic 2. Draw a sketch of each set-up applied

  33. Objects you may SAFELY use: parachuter (see teacher) bouncy ball pinballmachine nerf football rubberbands (see teacher) hot wheel cars noise-maker paper airplane (yellow paper) paddle-ball a piece of styrofoam block

  34. applied friction drag elastic

  35. appliedfriction dragelastic Which types of mechanical interactions decrease motion energy?

  36. Make Sense of Your ideas In general, how can you increase the motion energy of an object? You can increase the motion energy of an object when the source transfers energy INTO to receiver. Example: In general, how can you decrease the motion energy of an object? You can decrease the motion energy of an object when the energy is transferred OUT of the object. Example:

  37. Our Consensus Ideas How can you change (increase or decrease) the motion energy of an object? Mechanical interactions (applied, friction, drag, elastic) can cause changes in motion energy.An object will increase in motion energy when it receives a push or pull from the source. Also, an object will decrease in motion energy when it transfers energy to the receiver.

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