Be ready to take a few more Notes (Chapter 10 Section 3) Chapter 10 Quiz next Tuesday. If you were absent yesterday - graph review page - Exit ticket
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1 February 6 Be ready to take a few more Notes (Chapter 10 Section 3) Chapter 10 Quiz next Tuesday If you were absent yesterday - graph review page - Exit ticket
2 Chapter 10 Section 3 Acceleration measures how fast velocity changes
3 Reviewing Velocity
4 Velocity is speed in a certain direction Velocity is the rate at which position changes
5 Velocity is a vector A vector is a quantity with size (magnitude) & direction Vector from despicable me 1 minute clip
6 Speed vs Velocity Examples of Speed 25 miles per hour 4.5 meters per second Examples of Velocity 25 miles per hour North 4.5 meters per second West
7
8 A change in speed will change velocity A change in direction will change velocity
9 Can Two Objects have the same speed but different Velocities?
10 Can Two Objects have the same speed but different Velocities? Yes! Moving at the same speed but in different directions
11 If you take the train to Portland and then back Your speed is the same on the way there & back, but your velocity is different (because you are going in different directions)
12 Can Two Objects have the same Velocity but different speeds?
13 Can Two Objects have the same Velocity but different speeds? No. Same velocity requires same speed and same direction
14 Average Speed is different from Average Velocity Average Speed Depends on total distance travelled Average Velocity Depends on displacement
15 If you take the train to Portland and then back Average speed going South: 30 km/h Average velocity going South:??
16 If you take the train to Portland and then back Average speed going South: 30 km/h Average velocity going South: 30 km/h South
17 If you take the train to Portland and then back Average speed of whole trip: 30 km/h Average velocity of whole trip:??
18 If you take the train to Portland and then back Average speed of whole trip: 30 km/h Average velocity of whole trip: 0 km/h because you ended up in the same place you started
19 Speed Relates distance and time Not a vector Average depends on total distance Velocity Relates speed and direction Is a vector Average depends on total displacement
20 Acceleration
21 Acceleration is a measure of how quickly velocity is changing
22 Acceleration is ANY change in velocity Speeding up Slowing down Changing direction
23 If velocity is constant (unchanging) there is no acceleration driving your car at a constant speed in a straight line = zero acceleration
24 Acceleration is a Vector it has both size and direction
25 + Acceleration : same direction as motion gaining speed
26 - Acceleration : opposite direction as motion slowing down
27 Acceleration at an angle to motion Changing direction
28 1. Cut Out Each Item 2. Sort Each Item into the proper category Acceleration Direction Velocity Speed Some could go in more than one category..as long as you can justify your answer you are probably good Each card should be listed only once
29 Try This.. Can you narrow it down by only including the following in direction O, H, R, S, P
30 Check Your speed category It should definitely include G, B, W, M And maybe even I, V, F, X
31 Compare your sorting with a partnership next to you. Discuss what you did differently. Maybe you want to make changes.. Maybe not
32 Write Your Answers on the Half Sheet Provided. For Each Category, Circle the letter for what you consider the BEST example
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