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 Title your pages:  Page 69: Unit 2 Student Reflection  Page 70: Unit 2 Parent Review  Page 71: Table of Contents (Only if you don’t have Table of.

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Presentation on theme: " Title your pages:  Page 69: Unit 2 Student Reflection  Page 70: Unit 2 Parent Review  Page 71: Table of Contents (Only if you don’t have Table of."— Presentation transcript:

1  Title your pages:  Page 69: Unit 2 Student Reflection  Page 70: Unit 2 Parent Review  Page 71: Table of Contents (Only if you don’t have Table of contents in the front of your notebook; Otherwise Skip this page)  Page 72: Unit 3: Rate  Page 74: Rate in Mechanical Systems 1  Page 76: Rate in Mechanical Systems 2  When finished, begin your reflection.  Parent Review Due: November 2/3, 2011  3 WEEK TEST ON NOVEMBER 2/3, 2011! 3 WEEK TEST ON NOVEMBER 2/3, 2011!

2  Get in your group and answer all five questions  Put in “IN BOX” when you are completely done  I don’t want any incomplete work in there!

3 Acceleration Heat Transfer Electric Current TODAY’S DATE Draw a picture in each section. 3 WEEK TEST ON NOV 2/3, 2011!

4  Define speed, velocity, and acceleration.  Explain the difference between speed and velocity.  Explain the difference between velocity and acceleration.  Use speed, velocity, and acceleration to solve problems involving linear motion. **Write Essential Question under the title on page 74** Essential Question: Can objects that change still remain constant? 3 WEEK TEST ON NOV 2/3, 2011!

5 Scalar (magnitude only)Vector (magnitude AND direction) GUESSGUESS GUESSGUESS GUESSGUESS GUESSGUESS

6

7 Distance (d or Δd) "how much ground an object has covered" during its motion. SI Unit: meters, m Kilometers, km Speed (v or Δv) "how fast an object is moving.“ SI Unit: meters/second, m/s Displacement (d or Δd) "how far an object is from where it started" SI Unit: meters, m In a certain direction (West) Velocity (v or Δv) "how fast AND the direction an object is moving.“ SI Unit: meters/second, m/s In a certain direction, northeast 3 WEEK TEST ON NOV 2/3, 2011!

8 Distance A student walks 25 m east from his car to his class then 16 m west to the gym. What is the total distance traveled by the student?

9 Displacement (d or Δd) A student walks 25 m east from his car to his class then 16 m west to the gym. What is the displacement traveled by the student?

10 Speed (v or Δv) Mary walks to a store 210 m to the north for 30 minutes. What was Mary’s walking speed?

11 Velocity (v or Δv) Mark walks to a store 210 m to the north for 30 minutes. What was Mark’s walking velocity?

12 GUESSGUESS

13 Rate Challenge HEADS UP!  http://www.youtube.com/watch?v=tQIb94Or A6s&feature=related http://www.youtube.com/watch?v=tQIb94Or A6s&feature=related  Bring your WHEELS and materials for CAR BODY!  I will provide the axle (wooden sticks) and the rubber band.  Building and/or testing will be on November 4/7 2011. 3 WEEK TEST ON NOV 2/3, 2011!

14 Make sure you get YOUR notebook ready, a sheet of paper numbered 1- 15, a calculator and a pen/pencil.

15  I will come by and check your student reflection/ Parent Review while you test.  NO phones, talking or cheating will be tolerated. I will take the test away!!  Do NOT write on the test.  After test, pick up problems and begin working on them.  You have 45 minutes for the test!!

16  Instantaneous Speed - the speed at any given instant in time. Speed (v) =  d  t  Average Speed - the average of all instantaneous speeds; found simply by a distance/time ratio. Average Speed (v avg )=  d = d 1 + d 2  t t 1 + t 2 76

17 Acceleration, a  Is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity by –vector quantityvelocity  Speeding up  Slowing down  Changing direction  Is negative when slowing down OR speeding up in the negative direction (deceleration)  SI Unit: meters/seconds 2, m/s 2 76

18  Acceleration Acceleration = Velocity change (  v) Time Interval (  t) Average acceleration = A avg =  v = v 1 - v 2  t t 1 - t 2

19  An student rolls a pencil at his desk from north to south. The velocity as it left his hand was 0.23 m/s and it came to a stop in 4 seconds. What is the acceleration of the pencil? 76

20 On the paper slips, address the following in complete sentences about Mechanical Rate: 3 - Things you learned 2 - Things you found interesting 1 - Question you still have

21 Left Pages Page #Right Pages Page # Rate in Mechanical Systems 1 67 Rate in Mechanical Systems 2 69 3 WEEK TEST ON NOV 2/3, 2011!

22 Categorizing  How would you assign the words into two groups? What would be the heading for the two groups? Distance Displacement Speed Velocity 3 WEEK TEST ON NOV 2/3, 2011!


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