Conceptual Physics THURSDAY September 16 th, 2010 LESSON GOALS: Complete roller coaster.
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Conceptual Physics http://mrlafazia.com/PHYS111/lessons/201011Fall/PHYS111_08.ppt THURSDAY September 16 th , 2010 LESSON GOALS : • Complete roller coaster Group Examples • Setup and conduct lab on 3-Energy Transformation • completing diagram of 3-Energy Trans. (turn in as lab paper!) • Assign Homework #4 1/6
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Lab: 3-Energy Transformation Fill-out the following graphic as you collect and analyze the lab experiment: 3/6 USEFUL EQUATIONS: KE = ½ mv 2 PE gravity = mgh (GPE) PE spring = ½ kx 2 (EPE) TOP: PE gravity = ________ PE spring = ________ KE = ________ E total = ________ MIDDLE: PE gravity = ________ PE spring = ________ KE = ________ V max =____ E total = ________ BOTTOM: PE gravity = ________ PE spring = ________ KE = ________ E total = ________ h or x (the same) TOP: PE gravity = ________ PE spring = ________ KE = ________ E total = ________ MIDDLE: PE gravity = ________ PE spring = ________ KE = ________ V max =____ E total = ________ BOTTOM: PE gravity = ________ PE spring = ________ KE = ________ E total = ________ Below spots are for instructor use only: NOTE: There is a spreadsheet which we need to look at to visualize the 3-Energy Transformation, AFTER. FIRST! You must find k for your spring!
Transcript of Conceptual Physics THURSDAY September 16 th, 2010 LESSON GOALS: Complete roller coaster.
Conceptual Physics
http://mrlafazia.com/PHYS111/lessons/201011Fall/PHYS111_08.ppt
THURSDAY September 16th, 2010
LESSON GOALS:• Complete roller coaster Group Examples• Setup and conduct lab on 3-Energy Transformation
• completing diagram of 3-Energy Trans. (turn in as lab paper!)• Assign Homework #4
1/6
Roller Coaster Group Examples
(Pull up Roller Coaster questions and project onto board for Group perusal)
Note to class: We will begin these by assigning questions to each group in succession. Often, each group will build upon what the previous group just completed. This is actually a relatively fun set of examples (since the results are so satisfying).
2/6
Lab: 3-Energy TransformationFill-out the following graphic as you collect and analyze the lab experiment:
3/6
USEFUL EQUATIONS:KE = ½mv2
PEgravity = mgh (GPE)PEspring = ½kx2 (EPE)
TOP:PEgravity = ________PEspring = ________KE = ________Etotal = ________
MIDDLE:PEgravity = ________PEspring = ________KE = ________ Vmax=____Etotal = ________
BOTTOM:PEgravity = ________PEspring = ________KE = ________Etotal = ________
h or x(the same)
TOP:PEgravity = ________PEspring = ________KE = ________Etotal = ________
MIDDLE:PEgravity = ________PEspring = ________KE = ________ Vmax=____Etotal = ________
BOTTOM:PEgravity = ________PEspring = ________KE = ________Etotal = ________
Below spots are for instructor use only:
NOTE: There is a spreadsheet which we need to look at to visualize the 3-Energy Transformation, AFTER.
FIRST! You must find k for your spring!
HMWK #4:p. 98 #’s 21, 22; 27.
p. 99 #’s 10, 16; 17 (#17 requires you to “teach” yourself the POWER formula! It is a basic relationship and an important one. Be ready to use this on our test).
p. 102 #’s 57, 58; 60.
As usual for these, we will begin next class by collecting the homework and presenting these as Group Examples.
4/6
Recommended Reading:Sections 5.7 – 5.16
(Same old same old + the rest)
5/6
Looking Ahead:
6/6
• On Tuesday we will begin wrapping up our Unit One materials. Depending on how far we get, we will likely have a review on Thursday and a Test on that next Tuesday. (This is subject to variation…)
