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U1D5, Lecture: Gravitational Potential Energy Homework Due: Work-KE Theorem January 27 th (odd) or January 28 th (even)

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Agenda Day 6 HW Quiz (10 min) Day 5 HW Quiz Reflection (6 min) Day 6 HW Quiz Review (10 min) Intro Activity (7 min) Booklet Notes (7 min) Practice on Potential Energy (10 min) Update Learning Log (5 min) Break (5 min) Project Work Time (40 min) Write Down HW (5 min)

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Homework Quiz on “Kinetic Energy” 10 minutes 2 different forms Calculator (multiplying)

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Reflect on F’s HW Quiz Based on your score, does this change any of your numbers in your learning log (1/27 or 28)? Knowledge Targets: #7 5: No Idea 6: Heard it before 7: Recall definition 8: Recall definition & simple calculations 9: Total beast Average for Students who Took Notes: 9.0 Average for Students who did NOT Take Notes: 7.2

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Homework Quiz Review Kinetic Energy Equation? Work-KE Theorem Equation?

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Homework Quiz Review What is the kinetic energy of a 5kg box moving at 9m/s?

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Homework Quiz Review What is the work done on a 5kg box that goes from 9m/s to 12m/s? Positive or Negative?

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Homework Quiz Review What is the work done on a 5kg box that goes from 9m/s to 7m/s? Positive or Negative?

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Intro Activity Start the tennis ball at someone’s face Let the tennis ball drop (just let go!) Observe what happens

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In your notebooks… Draw what happened Where did it have the most potential energy? Energy due to position Where did it have the most kinetic energy? Energy due to motion

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Booklet Notes On page 11 of your booklet: “Potential Energy”

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Potential Energy Practice Gravitational potential energy equation? Work and Potential Energy Equation?

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Potential Energy Practice A 75kg man is standing on the edge of a table 1.5m above the ground. What is his potential energy?

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Potential Energy Practice A girl jumps a vertical distance of 2.3m. At the top of her jump (when she is at rest momentarily), her potential energy is 1,590J. What is her mass?

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Potential Energy Practice A 2kg rock is nudged off of a 15m cliff. After the rock has fallen 4m, what is the work gravity has done on the rock?

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Update Learning Log Knowledge Targets: #9, #10 Reasoning Targets: F 5: No Idea 6: Heard it before 7: Recall definition 8: Recall definition & simple calculations 9: Total beast

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5 Minute Break

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Store Each ticket will get you a certain amount of a material You cannot get multiple of the same materials Paper is unlimited

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Brainstorming Based on the materials you have or will have in the future Brainstorm 12 different steps: Must have different causes and effects! Brainstorm 3 simple “Final Tasks” related to your topic Recall Specifications Only Step 1 has human interaction One object rises to max of 2 feet A different object falls to min of 0 feet 8 Steps minimum. A step: Cause Effect 30 seconds to 5 minutes

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Our Topic: __________________ Final Task Ideas: 1: _________________ because… 2: _________________ because… 3: _________________ because… Step #1 Cause: Effect: Step #2 Cause: Effect: Step #3 Cause: Effect: Step #4 Cause: Effect: Step #5 Cause: Effect: Step #6 Cause: Effect: Step #7 Cause: Effect: Step #8 Cause: Effect: Step #9 Cause: Effect: Step #10 Cause: Effect: Step #11 Cause: Effect: Step #12 Cause: Effect:

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Project Work Time Brainstorming must be approved Work time; everyone should be participating DUE AT END OF PERIOD: Brainstorming Sheet

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Homework Watch Video on “Conservation of Energy” Bring more materials to work on Rube Goldberg

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