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CVM Test Review. Please grab a small white board and take out your notes. Individual. Position (m). Fill in the blanks: The graph has a __________ fit which means that the object is traveling at a _________ rate.

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cvm test review
CVM Test Review
  • Please grab a small white board and take out your notes
slide2

Individual

Position (m)

  • Fill in the blanks:
  • The graph has a __________ fit which means that the object is traveling at a _________ rate.
  • Word Bank: constant, decreasing, positive, linear, increasing, non-linear, direct

Time (s)

slide3

Individual

Position (m)

  • Given the graph above:
  • 1.What is the independent variable?
  • 2.What is the dependent variable?
  • 3.What does the slope represent?
  • 4.What does the y-intercept represent?

Time (s)

slide4

Class

Position (m)

  • 5. What direction is the object traveling? How do you know?
  • 6. What is it’s velocity? +/-/0, how do you know?

Time (s)

slide5

Class

B

A

Position (m)

  • Which object has a greater speed? How do you know?
  • What happens at 4 seconds?

4

Time (s)

slide6

Class

B

Position (m)

A

  • Which object has a greater speed? How do you know?
  • Do the objects ever pass each other? How do you know?

4

Time (s)

slide7

Individual

3

2

1

Velocity (m/s)

0

-1

-2

  • Calculate the displacement from:
    • 0-3
    • 3-6
    • 6-8
    • 8-10

-3

0 1 2 3 4 5 6 7 8 9 10 11

Time (s)

slide8

Individual

  • Ashrita Furman holds several world records. In 2004 he set the world record for the fastest 100m on a space hopper. He traveled at 3.31 m/s on the space hopper. How long did it take him?
slide9

Individual

  • In 2010, he set the record for the fastest mile on a space hopper. It took him 13 minutes flat. What was his average velocity in m/s?
  • 1 mile = 1609 m
  • 1 minute = 60 seconds
slide10

Individual

  • Ashrita also holds a world record for potato sack racing. In 2007, he raced at an average velocity of 1.607 m/s for 1001 seconds. What distance did he travel?

Fun fact: Ashrita holds the World Record for the most world records held by one person (currently 202)

slide12

Individual

  • The current fastest airplane is the Lockheed SR-71 Blackbird. It set the record in 1976, with a velocity of 980.4 m/s. If the circumference of the Earth is about 40,000,000m, how long would it take the Blackbird to go around the world in hours?
slide13

Individual

  • To get her world record, Joanne Singleton ran at an average rate of 3.67 m/s for 5745 s (1 hour, 35 min, 45s) dressed as a strawberry. How far did she run?
slide14

Individual

  • Tom Wiberg built and rode the world’s smallest motorcycle. He traveled 10 m in 18 seconds. What was his average velocity?
slide15

Individual

6

5

4

Position (m)

3

2

1

  • Given the following graph:
    • 1.Sketch a velocity vs. time graph
    • 2.Sketch a motion map

0

0 1 2 3 4 5 6 7 8 9 10 11

Time (s)

slide16

Individual

6

5

4

Position (m)

3

2

1

  • Given the following graph:
    • 1.Sketch a velocity vs. time graph
    • 2.Sketch a motion map

0

0 1 2 3 4 5 6 7 8 9 10 11

Time (s)

slide17

Individual

6

5

4

Position (m)

3

2

1

  • Given the following graph:
    • 1.Determine the average velocity
    • 2.Write the mathematical model that describes the object’s motion

0

0 1 2 3 4 5 6 7 8 9 10 11

Time (s)

slide18

Individual

6

5

4

Position (m)

3

2

1

  • Given the following graph:
    • 1.Determine the average velocity
    • 2.Write the mathematical model that describes the object’s motion

0

0 1 2 3 4 5 6 7 8 9 10 11

Time (s)

homework prepare for success
Homework: Prepare for Success!
  • Review the worksheets we did the last couple of days.
  • Review this powerpoint
    • The answers are posted after this slide
answers
Answers
  • Slide 2: linear, constant
  • Slide 3: time, position, velocity, initial position
  • Slide 4: negative direction because of negative slope, negative velocity because of negative slope
  • Slide 5: B because it has a steeper slope, they have the same position at the same time (they meet, pass, collide, etc.)
answers1
Answers
  • Slide 6: B because it has a steeper slope, No because they never have the same position at the same time (the lines do not intersect)
  • Slide 7: 6m, 0m, -6m, 2m
  • Slide 8: 30.21 sec
  • Slide 9: 2.06 m/s
  • Slide 10: 1608.607m (1 mile)
  • Slide 12: 11.3 hours
  • Slide 13: 21084.15 m (a half marathon)
  • Slide 14: 0.556 m/s (1.24 mph)
answers slide 15
Answers: Slide 15

3

2

1

Velocity (m/s)

0

-1

-2

-3

0 1 2 3 4 5 6 7 8 9 10 11

Time (s)

answers slide 16
Answers: Slide 16

3

2

1

Velocity (m/s)

0

-1

-2

-3

0 1 2 3 4 5 6 7 8 9 10 11

Time (s)

answers2
Answers
  • Slide 17: -4/6 m/s = -2/3 m/s = -0.667 m/s; x = -0.667 t + 5
  • Slide 18: 5/10 m/s = ½ m/s = 0.5 m/s;

x = 0.5 t

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