new six weeks
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
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New Six Weeks
New Approach
#1 ] Please be ready for class when the bell rings
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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
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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 )
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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
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09/24/12Relative Motion - Bellwork
In your own words:
Define RELATIVE MOTION
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09/24/12 Relative Motion - Bellwork
RELATIVE MOTION – Motion of one object with respect to another that is moving or stationary
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WE WILL BEGIN TAKING NOTES NOW
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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?
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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)
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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:
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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?
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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
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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?
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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
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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?
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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
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Back to Notes
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Relative Motion – 2D ( Page 72 )
Passenger relative to ground = passenger-train + train-ground
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Homework
• Page 79 - #s 48 & 49
• Digital Cameras with Connection Cables/Cords