Ethan Frome Introduction Begin Reading Today, in English… HW: Context Clues #4.
HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher?...
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Transcript of HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher?...
![Page 1: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/1.jpg)
HW Due today
Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math)Need a refresher? Read 2.3, and redo RQ #7-8
HW assigned today
Sell a Car project is due Oct. 28.
TONIGHT’S HW : Read and STUDY 2.0 – 2.4.Finish up to #19 in the POGIL(you will get done most of this in class today)
Do Now Is ACCELERATION a scalar or vector quantity? Add it to your T chart from last class Then, turn to page 2 of your Concept Attainment/ POGIL from last class. You have 3 minutes to rearrange the acceleration formula:
![Page 2: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/2.jpg)
HW Due today
Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math)Need a refresher? Read 2.3, and redo RQ #7-8
HW assigned today
Sell a Car project is due Oct. 28.
TONIGHT’S HW : Read and STUDY 2.0 – 2.4. Finish up to #19 in the POGIL(you will get done most of this in class today)
Do Now Is ACCELERATION a scalar or vector quantity? Add it to your T chart from last class.Then, HYPOTHESIZE the BIG IDEA on page 1 of your
POGIL from last class. Use the YES?NO boxes to complete the Concept Attainment
![Page 3: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/3.jpg)
YES (correctly shows today’s new concept) NO (does NOT show today’s new concept)
Increasing your velocity from 50 km/h 60 km/h (in the north direction)
Decreasing your velocity from 60 km/h 50 km/h (in the south direction)
Driving north at a constant 50 km/h and then making a sharp turn east at 60 km/h
Driving north up to a four way intersection, stopping, and making a left turn west
Driving at a constant 50 km/h NORTH Driving at a constant 60 km/h SOUTH Driving in a straight line at 50 km/h Driving up to a four way intersection,
ignoring stop sign, and keep going straight at the same speed you were going before (**don’t ever do this!)
Compare/contrast YES/NO boxes. List your hypothesis here…then check in!
List the BIG IDEA here when checking in with teacher….
PART 2: Concept Attainment:
![Page 4: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/4.jpg)
YES (correctly shows today’s new concept) NO (does NOT show today’s new concept)
Increasing your velocity from 50 km/h 60 km/h (in the north direction)
Decreasing your velocity from 60 km/h 50 km/h (in the south direction)
Driving north at a constant 50 km/h and then making a sharp turn east at 60 km/h
Driving north up to a four way intersection, stopping, and making a left turn west
Driving at a constant 50 km/h NORTH Driving at a constant 60 km/h SOUTH Driving in a straight line at 50 km/h Driving up to a four way intersection,
ignoring stop sign, and keep going straight at the same speed you were going before (**don’t ever do this!)
Compare/contrast YES/NO boxes. List your hypothesis here…then check in!
List the BIG IDEA here when checking in with teacher….
PART 2: Concept Attainment:
IF velocity changes…THEN there is an acceleration
CONSTANT Velocity CHANGING
Velocity
![Page 5: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/5.jpg)
![Page 6: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/6.jpg)
a = Δv OR v2 – v1
Δt Δt
Δv = a Δt or v2 – v1 = a Δt
Δt = Δv or Δt = v2 – v1 a a
![Page 7: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/7.jpg)
Magic Triangle!
OR…
![Page 8: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/8.jpg)
So…just what exactly IS acceleration?
Let’s say a car has an acceleration of 2 miles per hour per second; in other words: 2 mi
h . sWHAT DOES THAT MEAN? Brainstorm with the people around you… Every 1 SECOND, the car’s velocity is
INCREASING by 2 miles per hour.
![Page 9: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/9.jpg)
Time (s)
•0
Velocity (mph)
•0
A car has an acceleration of 2 miles per hour per second; in other words: 2 mi
h . s
![Page 10: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/10.jpg)
Time (s)
•0•1
Velocity (mph)
•0•2
A car has an acceleration of 2 miles per hour per second; in other words: 2 mi
h . s
![Page 11: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/11.jpg)
Time (s)•0•1•2
Velocity (mph)
•0•2•4
A car has an acceleration of 2 miles per hour per second; in other words: 2 mi
h . s
Predict the car’s velocity for the next 5 seconds
![Page 12: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/12.jpg)
Time (s)•0 •1•2•3
Velocity (mph)
•0•2•4•6
![Page 13: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/13.jpg)
Time (s)•0 •1•2•3•4
Velocity (mph)
•0•2•4•6•8
![Page 14: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/14.jpg)
Time (s)•0 •1•2•3•4•5
Velocity (mph)•0•2•4•6•8•10
![Page 15: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/15.jpg)
Time (s)•0 •1•2•3•4•5•6
Velocity (mph)•0•2•4•6•8•10•12
![Page 16: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/16.jpg)
Time (s)•0 •1•2•3•4•5•6•7
Velocity (mph)•0•2•4•6•8•10•12•14
This chart shows data
for a CONSTANT, POSITIVE
acceleration
![Page 17: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/17.jpg)
Clicker Concept Review
• Now that you have the FORMULA for acceleration, let’s see how well you can CONCEPTUALLY understand it.
• These questions are NOT in your POGIL• However, this PowerPoint is on my website;
feel free to print out the slides at home. Or, you can write your work on loose leaf now.
![Page 18: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/18.jpg)
Two people are driving down the street; 1 in an old VW Beetle and 1 in a new Maserati. The person driving the Beetle goes from 25 to 30 mph in 5 seconds. The person in the Maserati takes his/her time, and goes from 25 to 30 mph in 30 seconds. WHICH CAR HAS THE LARGER ACCELERATION?
![Page 19: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/19.jpg)
Two people are driving down the street; 1 in an old VW Beetle and 1 in a new Maserati. The person driving the Beetle goes from 25 to 30 mph in 5 seconds. The person in the Maserati takes his/her time, and goes from 25 to 30 mph in 30 seconds. WHICH CAR HAS THE LARGER ACCELERATION?
1 2 3 4 5
0% 0% 0%0%0%
1. The Beetle2. The Maserati3. Same acceleration4. Not enough info to say5. Not sure
![Page 20: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/20.jpg)
Two people are driving down the street; 1 in an old VW Beetle and 1 in a new Maserati. The person driving the Beetle goes from 25 to 30 mph in 5 seconds. The person in the Maserati takes his/her time, and goes from 105 to 110 mph in 30 seconds. WHICH CAR HAS THE LARGER ACCELERATION?
1 2 3 4 5
0% 0% 0%0%0%
1. The Beetle2. The Maserati3. Same acceleration4. Not enough info to say5. Not sure
![Page 21: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/21.jpg)
Think CONCEPTUALLY using EXAGGERATED EQUATIONS
Beetle Maserati
Same change in vDifferent times
Different accelerations
![Page 22: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/22.jpg)
Remember…
• Directly proportional vs. Inversely Proportional
![Page 23: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/23.jpg)
So, are ACCELERATION and TIME directly or inversely proportional?
1 2 3
0% 0%0%
1. Directly2. Inversely3. Not sure
![Page 24: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/24.jpg)
Now, the person driving the Beetle goes from 25 to 45 mph in 20 seconds. The person in the Maserati goes from 25 to 125 mph in 20 seconds. WHICH CAR HAS THE LARGER ACCELERATION?
![Page 25: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/25.jpg)
Now, the person driving the Beetle goes from 25 to 45 mph in 20 seconds. The person in the Maserati goes from 25 to 125 mph in 20 seconds. WHICH CAR HAS THE LARGER ACCELERATION?
1 2 3 4 5
0% 0% 0%0%0%
1. The Beetle2. The Maserati3. Same acceleration4. Not enough info to say5. Not sure
![Page 26: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/26.jpg)
Think CONCEPTUALLY using EXAGGERATED EQUATIONS
Beetle Maserati
Different change in vSame times
Different accelerations
![Page 27: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/27.jpg)
So, are ACCELERATION and CHANGE IN VELOCITY directly or inversely proportional?
1 2 3
0% 0%0%
1. Directly2. Inversely3. Not sure
![Page 28: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/28.jpg)
Speed changes by…
Speeding Up
Slowing Down& / or
& / or& / or
![Page 29: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/29.jpg)
If an object is CHANGING VELOCITY BY……
Speeding UpThen it is Positively
Accelerating
Slowing DownThen it is Negatively
Accelerating
Changing direction Then it is ACCELERATING (Centripetal acceleration… we will learn about
this in Ch. 9)
![Page 30: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/30.jpg)
POGIL
• Aim to FINISH the POGIL…some may. Some may not.
• Remember to check in at STOP SIGNS• We ARE NOT reviewing as a class.• We are stopping with 5 minutes left in
class.
• Up to #19 is HW
![Page 31: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/31.jpg)
20. True or False: Acceleration ONLY occurs if the speed INCREASES
1 2 3 4
0% 0%0%0%
1. True2. False3. Not enough info
to say4. Not sure
![Page 32: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/32.jpg)
21. If velocity in a vehicle is CONSTANT, is the vehicle accelerating?
1 2 3 4
0% 0%0%0%
1. Yes2. No 3. Not enough info
to say4. Not sure
![Page 33: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/33.jpg)
22. Suppose you are driving a car at a constant velocity of 50 mi/h. What is your acceleration?
1 2 3 4 5
0% 0% 0%0%0%
1. 02. Less than 50, but not 03. More than 504. Not enough info to say5. Not sure
![Page 34: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/34.jpg)
23. Suppose a car moving in a straight line steadily increases its speed each second, first from 35 to 40 km/h, then from 40 to 45 km/h, then from 45 to 50 km/h, What is its acceleration?
1 2 3 4 5
0% 0% 0%0%0%
1. 02. 5 km/h s3. Less than 5 km/h s4. More than5 km/h s5. Not sure
![Page 35: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/35.jpg)
24. In 5 seconds a car moving in a straight line increases its speed from 50 km/h to 65 km/h. During those same 5 seconds, a truck goes from rest to 15 km/h. Which has the larger acceleration?
1 2 3 4
0% 0%0%0%
1. Car2. Truck3. Same 4. Not sure
![Page 36: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/36.jpg)
25. Is it possible to be moving but not accelerating?
1 2 3 4
0% 0%0%0%
1. Yes2. No 3. Not enough info
to say4. Not sure
![Page 37: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/37.jpg)
26. Why is it that an object can accelerate while traveling at constant speed, but not at constant velocity?
![Page 38: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/38.jpg)
27. Light travels in a straight line at a constant speed of 300,000 km/s. What is the light´s acceleration?
1 2 3 4 5
0% 0% 0%0%0%
1. 02. Less than 300,000 but
not 03. More than 300,0004. Not enough info to say5. Not sure
![Page 39: HW Due today Read and Study 2.4 (p.15-16) Do RQ #9-14 (p. 26, concepts, no math) Need a refresher? Read 2.3, and redo RQ #7-8 HW assigned today Sell a.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea85503460f94bac562/html5/thumbnails/39.jpg)
28. Which has more acceleration when moving in a straight line- a car increasing its speed from 50 to 60 km/hr, or a bicycle that goes from zero to 10 km/hr in the same time?
1 2 3 4 5
0% 0% 0%0%0%
1. Car 2. Bike3. Same 4. Not enough info to say5. Not sure