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The Moment Of Truth
 

The Moment Of Truth

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    The Moment Of Truth The Moment Of Truth Presentation Transcript

    • The Moment of Truth One & Two Dimensional Motion Physics Semester I 2008-2009 Mrs. Kuzara
    • Motion in One Dimension
      • What does constant velocity look like on a position vs. time graph?
      • What does constant velocity look like on a velocity vs. time graph?
      • What does increasing velocity look like on a position vs. time graph?
      • What does increasing velocity look like on a velocity vs. time graph?
    • One Dimensional Motion
      • What does constant velocity look like on an acceleration vs. time graph?
      • Describe the motion for each:
        • velocity + acceleration +
        • velocity + acceleration –
        • velocity - acceleration +
        • velocity - acceleration -
    • One Dimensional Motion
      • Draw the v vs. t graph for the following:
    • One Dimensional Motion
      • Draw the x vs. t graph for the following:
    • One Dimensional Motion
      • What is the difference between finding instantaneous velocity on an x vs. t graph, and on a v vs. t graph?
    • Two Dimensional Motion
      • What are the two parts to a vector measurement?
    • Two Dimensional Motion
      • List all of the scalar units of measurement that you can think of
          • time, speed, distance, mass, density, volume, work
      • List all of the vector units of measurement that you can think of
          • velocity, displacement, acceleration, force
    • Two Dimensional Motion
      • While following the directions on a treasure map, a pirate walks 45.0m north, then turns and walks 17.5m east. What single straight-line displacement could the pirate have taken to reach the treasure?
          • 48.3m 21.3° E of N
    • Two Dimensional Motion
      • What is x net ?
        • x 1 = 5km Right
        • x 2 = 20km Left
          • 15km left
      • What is vnet?
        • v 1 = 10km/h South
        • v 2 = 15km/h West
          • 18km/h 34° S of W
    • Two Dimensional Motion
      • Break the following vector into its components: 600 m/s 30  N of W
          • 300m/s N
          • 520m/s W
    • Two Dimensional Motion
      • You head downstream on a river in a canoe. You can paddle at 5 km/h and the river is flowing at 2 km/h.
        • How far downstream will you be in 30 minutes?
          • 3.5km downstream
        • Now you paddle upstream at 5 km/h. How far upstream will you be in 30 minutes?
          • 1.5km upstream
    • Two Dimensional Motion
      • Dave rows a boat across a river at 4 m/s. The river flows at 6 m/s and is 360 m across.
        • What is the resultant velocity of the boat?
          • 7.2m/s 56° downstream
        • How long does it take Dave to cross the river?
          • 90s
        • How far downstream is Dave’s landing point?
          • 540m downstream
        • How long would it take to cross if there were no current?
          • 90s
    • Two Dimensional Motion
      • A jet flies due South at 300km/hr. A wind is blowing due West at 35km/hr. What is the jet’s resultant velocity?
          • 302km/h 6.7° W of S
    • Two Dimensional Motion
      • A ball is thrown horizontally from a cliff which is 18 m high. It lands 22 m from the base of the cliff.
        • How long was it in the air?
          • 1.9s
        • With what speed was it thrown?
          • 12m/s