CVM Test Review  Please grab a small white board and take out your notes

 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 Position (m) Time (s) Individual

 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? Position (m) Time (s) Individual

 5. What direction is the object traveling? How do you know?  6. What is it’s velocity? +/-/0, how do you know? Position (m) Time (s) Class

 Which object has a greater speed? How do you know?  What happens at 4 seconds? Position (m) Time (s) A B 4 Class

 Which object has a greater speed? How do you know?  Do the objects ever pass each other? How do you know? Position (m) Time (s) A B 4 Class

 Calculate the displacement from:  0-3  3-6  6-8  8-10 Velocity (m/s) Time (s) 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? 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 Individual

 Ashrita also holds a world record for potato sack racing. In 2007, he raced at an average velocity of m/s for 1001 seconds. What distance did he travel? Individual Fun fact: Ashrita holds the World Record for the most world records held by one person (currently 202)

Check Do we need more practice with solving constant velocity problems?

 The current fastest airplane is the Lockheed SR-71 Blackbird. It set the record in 1976, with a velocity of 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? 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? Individual

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

 Given the following graph:  1.Sketch a velocity vs. time graph  2.Sketch a motion map Position (m) Time (s) Individual

 Given the following graph:  1.Sketch a velocity vs. time graph  2.Sketch a motion map Position (m) Time (s) Individual

 Given the following graph:  1.Determine the average velocity  2.Write the mathematical model that describes the object’s motion Position (m) Time (s) Individual

 Given the following graph:  1.Determine the average velocity  2.Write the mathematical model that describes the object’s motion Position (m) Time (s) Individual

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  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.)

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: sec  Slide 9: 2.06 m/s  Slide 10: m (1 mile)  Slide 12: 11.3 hours  Slide 13: m (a half marathon)  Slide 14: m/s (1.24 mph)

Answers: Slide 15 3 Velocity (m/s) Time (s)

Answers: Slide 16 3 Velocity (m/s) Time (s)

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