3.1.1.2 Practice with Energy Pie Charts online

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3/7/24, 8:54 PM 3.1.1.2 Practice with Energy Pie Charts : Mechanics, Heat, & Sound - HS - Wilkes, Deborah 3 1.1.2 Practice with Energy Pie Charts Due Nov 2, 2023 at 11:59pm e Points 2 e Questions 2 e Available Nov 2, 2023 at 12am - Nov 17, 2023 at 11:59pm e Time Limit None o Allowed Attempts Unlimited Instructions In this activity, you will practice using system schema and energy pie charts for various situations. Before you begin, you'll need a whiteboard or large paper. As you work through the problems consider the following Guiding Questions: 1. How do you determine the system? 2. What are the benefits of using a pie chart? 3. What other ways could we represent energy? You will be asked to submit a photo of your work at the end of this assignment. You can download and print the original handout here (https://onramps.instructure.com/courses/3820435/files/265668194/download? wrap=1)_ (https://onramps.instructure.com/courses/3820435/files/265668194/download? download frd=1). This quiz was locked Nov 17, 2023 at 11:59pm. ATTEMPT HISTORY Attempt Time Score LATEST Attempt 1 3 minutes 2 out of 2 Score for this attempt: 2 out of 2 Submitted Nov 2, 2023 at 10:41am This attempt took 3 minutes. https://onramps.instructure.com/courses/3820435/quizzes/10615226 117

3/7/24, 8:54 PM 3.1.1.2 Practice with Energy Pie Charts : Mechanics, Heat, & Sound - HS - Wilkes, Deborah Remember there are only three storage bins of energy at this time: E9, E™ and E*. For each of the situations a) ldentify the system b) Draw a picture c) Make at |least three energy pie charts for the system at different points in time d) Describe what is happening for each pie in words You will submit your solutions in the Upload section at the end of this assignment. As an example, consider a child climbing up a rope. https://onramps.instructure.com/courses/3820435/quizzes/10615226 2/7

3/7/24, 8:54 PM 3.1.1.2 Practice with Energy Pie Charts : Mechanics, Heat, & Sound - HS - Wilkes, Deborah e What are the elements in the system? « How are these elements interacting? What or who is interacting with what and how (i.e. through gravity or by contact)? e What is in our system and what, if anything, is outside our system? 1. Starting with a pie at the bottom. One Later still, the girl is assumption would be she starts from ' rest (which means no kinetic energy), moving faster and is https://onramps.instructure.com/courses/3820435/quizzes/10615226 317

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3/7/24, 8:54 PM 1. A box slides down a hill and comes to rest after traveling some distance along the flat part. 2. A book is sliding across a table. The book stops after it has traveled some distance. 3.1.1.2 Practice with Energy Pie Charts : Mechanics, Heat, & Sound - HS - Wilkes, Deborah high-er'up the rope. Some time later, girl is moving up rope. At time, t=0, assuming girl is not moving yet, and is at the bottom of the rope. and that she is at the lowest point of this situation (so we can set Eg =0). The only source of energy then is in the girl. . As the girl moves up, she is now moving, therefore she must have some kinetic energy, and because she has moved up, she must have some gravitational energy (she is higher up than before). Since the total must remain the same, that means the Egir must have gone down. . Depending on your model, this final pie might be different, but | assumed constant acceleration, so Ex has grown, the girl continues upward, so Egz grows and as a result, Egin must shrink. 3. An ice skater glides across very smooth ice. 4. A Frisbee is thrown upwards and lands in a tree. Question 1 1/1 pts Upload: Submit a photo of your work here. You may submit your work in one of the following ways: Embed an image Upload a JPG or PNG using the Image Upload Upload a document Upload a Document Your Answer: https://onramps.instructure.com/courses/3820435/quizzes/10615226 47

3/7/24, 8:54 PM 3.1.1.2 Practice with Energy Pie Charts : Mechanics, Heat, & Sound - HS - Wilkes, Deborah https://onramps.instructure.com/courses/3820435/quizzes/10615226 5/7

3/7/24, 8:54 PM 3.1.1.2 Practice with Energy Pie Charts : Mechanics, Heat, & Sound - HS - Wilkes, Deborah W’ Mf#"filfﬂffimmﬂqmww \ | § i = Mechanics, Heat, and Sound (PHY 302K) b S OnRamps NAME: 144’““ Rliehiad | 45 . : ice with Energy Pie Charts %; Handout 3.1.1.2: Practic i . s . int kK For 7 3 Remember there are only three storage bins of energy at this time: E, E™ and E . each of the situations /, a) ldentify the system b) Draw a picture : y s ) Make at least three energy pie charts for the system at different points in tim di Describe what is happening for each pie in words i e 1) A box slides down a hill a(wd comes to rest after traveling some distance along th flat part. . ' ) \&\‘* 5()@4(41 oXpb i Tl 9C MIAT 0 mofi?m / {Fetol< :wi A V984N — m moslos L lol/ ) C"‘""‘ Pf Ao ~md i17 9&madin 2) Abook is sliding across a table. The book stops after it has traveled some distance. @~7 cj _,_) A& {Ado [ M6"r e TP e — e Becw QI SR e ey L Wb etn 12 ML T tE Lo N4 507 | ,(Q Qr wmiitec i ides across very smooth ice. 3) An lcei_skater\glld ry (‘ gy \)i ; the $KATEL 4 akMmE ad dn ke SRR T 7% b Cele becres % Und pethe™y Tpave tohac 4. Sekreter. Udth Cooehlb 100, ryes 5 AnL be Leckots R e The Unive rsity of T sais al An sﬂn / 4) A Frisbee is thrown upwards and lands in a tree. & - EHC / ' . (a? QO(hRel(’ L e Betal Fet Q¥ \( pret g | hippwr vn 7 R [ @/ Thiw é\:}v’(?n D <le< "j b Peed j l'; W TEXA Mechanics, Heat, and Sound (PHY 302K) | 1 https://onramps.instructure.com/courses/3820435/quizzes/10615226 6/7

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3/7/24, 8:54 PM 3.1.1.2 Practice with Energy Pie Charts : Mechanics, Heat, & Sound - HS - Wilkes, Deborah Question 2 1/1pts Reflection: What is a question you still have after completing this activity? What is something new you learned? Your Answer: none how kentec energy increase and decrees in motion Quiz Score: 2 out of 2 https://onramps.instructure.com/courses/3820435/quizzes/10615226 717