3.1.1.1 Ball Bounce Activity online

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3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah 3.1.1.1 Ball Bounce Activity e Due Nov 2, 2023 at 11:59pm Points 7 Questions 7 Available Nov 1, 2023 at 12am - Nov 16, 2023 at 11:59pm Time Limit None Allowed Attempts Unlimited Instructions In this activity, you will explore how the constant acceleration model breaks (at the bounce), and that we need more in our model to explain why the ball does not return as high after the bounce, introduce interactions within a system and energy as a causal mechanism, and introduce system schema and energy pie charts as new tools. Before you begin, you'll need a Whiteboard or sheet of large paper. Optionally, you may want a motion detector (or a smartphone camera and motion tracking app As you work through the problems consider the following Guiding Questions: 1. Why doesn't the ball bounce back to the place it was released from? 2. When can you use a constant acceleration model? 3. Is it ok to model only one part of the motion of the ball? Why or why not? 4. Why would you want to model only one part? 5. What models are appropriate and when? 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/265668154/download? wrap=1)_ {, (https://onramps.instructure.com/courses/3820435/files/265668154/download? download frd=1). This quiz was locked Nov 16, 2023 at 11:59pm. https://onramps.instructure.com/courses/3820435/quizzes/10615008 1/9

3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah ATTEMPT HISTORY Attempt Time Score LATEST Attempt 1 14 minutes 7 out of 7 Score for this attempt: 7 out of 7 Submitted Nov 1, 2023 at 10:43am This attempt took 14 minutes. Brief Introduction In this investigation you will be examining the motion of a bouncing ball. First, we will be using balls in class to make general, non-precise observations. Next, you will use a motion detector to study the motion of the ball bounce. Pre-Activity The end result for this investigation will be a complete model of the ball bounce, beginning immediately after the ball is dropped, until the ball has reached its maximum height after the second bounce. Prior to “collecting” the data, you have to predict the outcome of the ball bounce. On the axes provided predict the position vs. time, velocity vs. time, and acceleration vs. time graphs for the ball from the time it is dropped until it reaches its maximum height after the second bounce. Label the part of the graphs where the ball bounces with a star. You will submit all your graph solutions in the Upload section at the end of this assignment. Prediction of Ball Bounce: https://onramps.instructure.com/courses/3820435/quizzes/10615008 2/9

3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah Pos. Vel Accel. (m) T (m/s)- (m/s/s) - Time (s) Time (s) j Time (s) Predicted Motion Map for Ball Bounce: Actual Data from Ball Bounce: Pos. ] Vel ] Accel. | (m) - (m/s)- (m/s/s) - Time (s) Time (s) Time (s) You can find the graphs from a ball bounce here & (https://i.stack.imgur.com/BzmuG.png).if you don't have a motion detector or video tracking software. Notice that the peaks are all the same level, this implies that this ball bounced back to its original height every time. Ask yourself if this is realistic and what the graphs might look like for an actual ball dropped in front of you. Motion Map for Ball Bounce: Question 1 1/1 pts Did your predictions match the data? If not, how were they different? Your Answer: yes, but the volocty was reverse of what we perdicted Question 2 1/1 pts What was most difficult to predict? Why? Your Answer: https://onramps.instructure.com/courses/3820435/quizzes/10615008 3/9

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3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah the veolcty we didint full understand what veoclty would be when droping and rasing Question 3 1/1 pts What models will you use when you construct your complete model of the ball bounce (the entire motion, not just the bounce)? What happens to the ball during that time period? Your Answer: befor it was droped it has potilal enrygy, when it drop its protial energy is decreing and kentic energy is increing,when it comes back up itprotial energy is increing and kentic energy is decreing, Question 4 1/1 pts How would you represent that? Your Answer: potial kitic enegy chat Question 5 1/1 pts Based on your answers to questions 3 and 4, why the ball doesn’t bounce as high? Your Answer: gravity is taking the potal energy Question 6 1/1 pts Upload: Submit a photo of your work here. You may submit your work in one of the following ways: Embed animage | Upload a JPG or PNG using the Image Upload Upload a document | Upload a Document Your Answer: https://onramps.instructure.com/courses/3820435/quizzes/10615008 4/9

3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah https://onramps.instructure.com/courses/3820435/quizzes/10615008 5/9

3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah \\\2///Oanmps Mechanics, Heat, and Sound (PHY 302K) that time period? NAME: Actual Data from Ball Bounce: Pos. Vel. Accel. —‘ (m) _\/\«,L (m/s) 7 /\/\/\/\/\ (m/s/s) 7 Time (s) Time (s) Time (8) — =1 _/—v_—\\ 3 Motion Map for Ball Bounce 7 ‘L '____; o }1 Questions from Ball Bounce ,l o 1. Did your predictions match the data? If not, how were they different? i‘ ’_;5 Pff {7 e i {’?f [/91(7{' W4 4 %f‘/‘lh’{’?’ el (et V¢ (7-.(0‘1“-7(& k S, h AR i e 14 5. What was most difficult to predict? Why? Vi The ((0(TTE e Lt utle vrbidzal u g -@,7_( vatt Wil we Whep X i = i »:: ok 3. What models will you use when you construct your complete model of the bal\. 8 bounce (the entire motion, not just the bounce)? What happens to the ball during ' ; vere ir; I8 L cop e dyati \Maa feb Tt w G e 1F v Bt afteae 7 LS A (b#(/?—%/?c((( 2 S Ut el Qe ln? Bad Kenf'c 14 TAche (4§ b (e (s4n4 bl Cp 2 /(6//'{7V(tcc( (lfi (((p'(?/\f 01/L(( (('fj (('(1?[( ;( f""((/v/{.?,-,j' 4. How would you represent that? pg,(((m C lbate et ((nT. ‘ | 5. Based on your answers to questions 3 and 4, why the ball doesn't bounce as high? e C @(/((er\ MBIEANCC a0 Tl se(/”z)(/' TEXAS Mechanics, Heat, and Sound (PHY 302K) | 2 https://onramps.instructure.com/courses/3820435/quizzes/10615008 6/9

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3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah o sl R e S DR R e e T T R R R e S https://onramps.instructure.com/courses/3820435/quizzes/10615008 7/9

3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah @Oanmps Mechanics, Heat, and Sound (PHY 302K) NAME: Adn Cemine Handout 3.1.1.1: Ball Bounce Activity b Brief Introduction In Fhis investigation you will be examining the motion of a bouncing ball. First, we will be using balls in class to make general, non-precise observations. Next, you will use a motion detector to study the motion of the ball bounce. Pre-Activity The end result for this investigation will be a complete model of the ball bounce, beginning immediately after the ball is dropped, until the ball has reached its maximum height after the second bounce. Prior to “collecting” the data, you have to predict the outcome of the ball bounce. On the axes provided predict the position vs. time, velocity vs. time, and acceleration vs. time graphs for the ball from the time it is dropped until it reaches its maximum height after the second bounce. Label the part of the graphs where the ball bounces with a star. Prediction of Ball Bounce: Pos. -[ , Vel. ] Accel. -\ (m) % (m/s)] (m/s/s) | = —— — - : EEEOEAET ‘- ; Time (s) Time () ————\Tlnle (s) ¢ : N Predicted Motion Map for Ball Bounce TEXAS ‘ Mechanics, Heat, and Sound (PHY 302K) | 1 | The Unisersiey of Teexad i Anstin - | https://onramps.instructure.com/courses/3820435/quizzes/10615008 8/9

3/7/24, 8:53 PM 3.1.1.1 Ball Bounce Activity: Mechanics, Heat, & Sound - HS - Wilkes, Deborah il o T SRR T T R M e A O T L S R e A e e e R TP S| Question 7 1/1pts Reflection: What is a question you still have after completing this activity? What is something new you learned? Your Answer: none that when falling the vecocty is increeing not decreeing Quiz Score: 7 out of 7 https://onramps.instructure.com/courses/3820435/quizzes/10615008 9/9

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