U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag...
-
Upload
daniella-wolden -
Category
Documents
-
view
212 -
download
0
Transcript of U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag...
![Page 1: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/1.jpg)
U2C2A3 RSp 162
![Page 2: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/2.jpg)
Key Question: What happens to the energy in applied, friction and drag interactions?
We Thinkpage 162
#’s 1-2
![Page 3: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/3.jpg)
![Page 4: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/4.jpg)
Explore Your Ideas
page 163
![Page 5: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/5.jpg)
Explore Your Ideas
Part A: Energy Diagrams for AppliedApplied Interactions
Step 1
page 163
![Page 6: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/6.jpg)
Part A: #1
stored chemical motion
AppliedApplied
![Page 7: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/7.jpg)
You have You have 6 minutes6 minutes to to complete #s 2 – 4 on p 164 complete #s 2 – 4 on p 164
Read Step 2 #s 2-4
on p 164
![Page 8: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/8.jpg)
Part A: #2
AppliedApplied
![Page 9: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/9.jpg)
Part A: #3
AppliedApplied
![Page 10: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/10.jpg)
Part A: #4AppliedApplied
![Page 11: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/11.jpg)
Part B: Energy Diagrams for FrictionFriction Interactions
Step 1: Friction video
5. In both cases, what was the evidence that a friction interaction had occurred?
![Page 12: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/12.jpg)
5. In both cases, what was the evidenceevidence that a friction interaction had occurred?
Rubbing hands: There was a change in….
Wooden block rubbed along table: There was a change in….
![Page 13: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/13.jpg)
Now it’s your turn!
Step 2: Rub the palms of your hands together.
6. What is the evidence that a friction interaction is occurring?
![Page 14: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/14.jpg)
Step 3: Gently shove one of your books so that it moves across your desk. There is a friction interaction between the book and the desktop.
7. What do you observe?
![Page 15: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/15.jpg)
You have You have 6 minutes6 minutes to to complete #s 8 - 11complete #s 8 - 11
Read p.p. 165-166 to answer #’s 8-11 (Do Not move on to Part C.)
![Page 16: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/16.jpg)
Part B: #8
![Page 17: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/17.jpg)
Part B: #9
![Page 18: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/18.jpg)
Part B: #10
![Page 19: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/19.jpg)
Part B: #11
The source The source decreases in decreases in motion energy.motion energy.
The receiverThe receiverss increase in increase in thermal energy.thermal energy.
s
FrictionFriction
motionmotion thermalthermal
![Page 20: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/20.jpg)
Part B: #11
![Page 21: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/21.jpg)
Part C: Energy Diagrams for DragDrag Interactions
Step 1: video - drag in air (Watch, then complete #’s 12-14)
![Page 22: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/22.jpg)
Part C:#12DragDrag
car/parachutemechanical
energyair
decreases in motion energy
increases in motion energy
![Page 23: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/23.jpg)
Part C:#13DragDrag
boatmechanical
energywater
decreases in motion energy
increases in motion energy
![Page 24: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/24.jpg)
Part C: Energy Diagrams for DragDrag Interactions
Step 3: Think about a rider on a bicycle. Bicycle riders experience a lot of drag!
![Page 25: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/25.jpg)
Part C:#14DragDrag
bike ridermechanical
energy air
decreases in motion energy
increases in motion energy
![Page 26: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/26.jpg)
You have You have 5 minutes5 minutes to to complete complete Make Sense Make Sense of Your Ideasof Your Ideas #s 1 - 3 #s 1 - 3
![Page 27: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/27.jpg)
Make Sense of Your IdeasQuestion 1
1. In general, what evidence shows that an applied interaction has occurred?
The receiver
increases
in motion energy.
![Page 28: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/28.jpg)
Make Sense of Your Ideas Question 2
2. In general, what evidence shows that an friction interaction has occurred?
The receivers
increase
in thermal energy.
![Page 29: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/29.jpg)
Make Sense of Your Ideas Question 3
3. In general, what evidence shows that an drag interaction has occurred?
The receiver
increases
in motion energy.
![Page 30: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/30.jpg)
![Page 31: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/31.jpg)
Question 1 - Applied Interaction
motion
The source The source decreases in decreases in energy.energy.
The receiver The receiver increases in increases in motion motion energy.energy.
AppliedApplied
![Page 32: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/32.jpg)
In an applied mechanical interaction, the energy from the receiver often gets transformed into motion energy of the source.
![Page 33: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/33.jpg)
Question 2 - Friction Interaction
thermal
Receivers
The source The source decreases in decreases in motion motion energy.energy.
The receiverThe receiverss increase in increase in thermal thermal energy.energy.
motion
FrictionFriction
![Page 34: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/34.jpg)
Question 2
•In a friction interaction, the energy source (motion energy) gets transformed into thermal energy of the receivers (both surfaces rubbing against each other).
![Page 35: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/35.jpg)
Question 3 - Drag Interaction
Re-write your answer to #3.Re-write your answer to #3.
DragDrag
![Page 36: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/36.jpg)
Question 3Drag Interaction
motion
The source The source decreases in decreases in motion motion energy.energy.
The receiver The receiver increases in increases in motion motion energy.energy.
motion
![Page 37: U2C2A3 RS p 162. Key Question: What happens to the energy in applied, friction and drag interactions? We Think page 162 #’s 1-2.](https://reader035.fdocuments.in/reader035/viewer/2022062620/551b2226550346d41a8b462e/html5/thumbnails/37.jpg)
Question 3
•In a drag interaction, the energy of the source (motion energy) gets transformed into motion energy of the receiver (the gas or liquid the source is in).