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New Six Weeks

New Six Weeks. New Approach #1 ] Please be ready for class when the bell rings. New Six Weeks. Lessons will be more concise/coherent Posted online daily with date/objective ( or topic ) I will label Bellwork , Notes, etc Late penalty of 2 points per day for assignments

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New Six Weeks

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  1. New Six Weeks New Approach #1 ] Please be ready for class when the bell rings

  2. New Six Weeks • Lessons will be more concise/coherent • Posted online daily with date/objective ( or topic ) • I will label Bellwork, Notes, etc • Late penalty of 2 points per day for assignments • Days we do not meet COUNT!! • Makeup work when absent • Have 5 days ( days we do not meet count ) for classwork and labs • Have 3 days for quizzes and tests

  3. New Six Weeks • Will not check notebooks any more • Assign few homework problems each class • Online venue still a possibility • Will discuss the following class period • May have time at the end of class ( USE IT!! ) • Will have open notes quizzes ( 1-2 times per week )

  4. Suggestions on Notetaking • Label with date • Draw a line between dates to save paper • Label Bellwork and Notes • Label Homework, Demos, Other Classwork • Not necessarily notes but are important

  5. 09/24/12Relative Motion - Bellwork In your own words: Define RELATIVE MOTION

  6. 09/24/12 Relative Motion - Bellwork RELATIVE MOTION – Motion of one object with respect to another that is moving or stationary

  7. WE WILL BEGIN TAKING NOTES NOW

  8. Examples of Relative Motion • With respect to the ground/earth • Boat/Swimmer crossing a swiftly moving stream • Can you travel directly from one bank to another? • Someone walking on a train or a plane (in motion) • Does the speed/velocity of the vehicle matter?

  9. Examples of Relative Motion • With respect to the ground/earth • Boat/Swimmer crossing a swiftly moving stream • Can you travel directly from one bank to another? • Have to move at an angle ( upstream ) to account for stream current • Someone walking on a train or a plane (in motion) • Does the speed/velocity of the vehicle matter? • Yes (if we want overall motion with respect to ground)

  10. Relative Motion - 1D ( Page 71 ) The speed of the passenger with respect to the ground depends on the relative directions of the passenger’s and train’s speeds:

  11. Active Demonstration • Need two volunteers • One stands still, other moves away (say, at 1m/s) • Is there any difference between a reference made to the ground and stationary person?

  12. Active Demonstration • Need two volunteers • One stands still, other moves away (say at 1 m/s) • Is there any difference between a reference made to the ground and stationary person? • NO

  13. Active Demonstration • Need two other volunteers • Both move in same direction ( at 1 m/s ) • Is there any difference between a reference made to the ground and person at left?

  14. Active Demonstration • Need two other volunteers • Both move in same direction ( say at 1 m/s ) • Is there any difference between a reference made to the ground and person at left? • YES

  15. Active Demonstration • Need two other volunteers • Both move in opposite directions ( at 1 m/s ) • Is there any difference between a reference made to the ground and person at left?

  16. Active Demonstration • Need two other volunteers • Both move in opposite directions ( at 1 m/s ) • Is there any difference between a reference made to the ground and person at left? • YES

  17. Back to Notes

  18. Relative Motion – 2D ( Page 72 ) Passenger relative to ground = passenger-train + train-ground

  19. Homework • Page 79 - #s 48 & 49 • Digital Cameras with Connection Cables/Cords

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