PHY211 Lab 5
Kinematics
Exercise 1
1. Explain the mathematical and graphical relationship between velocity and acceleration using your own words.
2. Explain the mathematical and graphical relationship between velocity and position using your own words.
3. How does the angle of inclination affect the velocity of the marble? The acceleration?
4. Compare calculated velocity and acceleration to velocity and acceleration determined from graphs. Do the values match? If not, which value is more accurate and why?
5. Describe the motion of an object with positive velocity and negative acceleration. Describe the motion of an object with negative velocity and positive acceleration. Describe the motion of an object with negative velocity and negative acceleration.
6. Describe the motion depicted by the following motion diagram. Then, sketch a velocity versus time graph for this motion diagram and insert the image into Graph 5:
7. Relate the velocity and position versus time graphs you made in Part 2 and Part 3 to one another.
8. How does the distance traveled with constant incline (Part 2) affect the velocity? What about the acceleration?
Data Table 1: Changing Inclination Angle
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Board Length0.355m |
Angle 1 |
Angle 2 |
Angle 3 |
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Angle of incline (o) |
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Trial 1 time (s) |
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Trial 2 time (s) |
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Trial 3 time (s) |
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Trial 4 time (s) |
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Trial 5 time (s) |
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Average time (s) |
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Velocity (m/s) |
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Acceleration (m/s2) |
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Data Table 2: Changing Distance on Incline
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Angle of incline5(o) |
Distance 1 |
Distance 2 |
Distance 3 |
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Distance (m) |
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Trial 1 time (s) |
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Trial 2 time (s) |
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Trial 3 time (s) |
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Trial 4 time (s) |
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Trial 5 time (s) |
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Average time (s) |
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Velocity (m/s) |
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Acceleration (m/s2) |
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Trendline acceleration |
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Photo of Motion Diagram:
Graph 1: Distance vs. Time
Excel graph, should have Distance on y-axis, Time on x-axis, remember to include units
Graph 2: Velocity vs. Time
Excel graph, should have Velocity on y-axis, Time on x-axis, remember to include units
Data Table 3: Changing Distance on Flat Surface
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Release Point |
Distance 1 |
Distance 2 |
Distance 3 |
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Distance (m) |
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Trial 1 time (s) |
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Trial 2 time (s) |
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Trial 3 time (s) |
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Trial 4 time (s) |
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Trial 5 time (s) |
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Average time (s) |
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Velocity (m/s) |
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Acceleration (m/s2) |
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Trendline acceleration (m/s2) |
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Graph 3: Displacement vs. Time
Excel graph, should have Displacement on y-axis, Time on x-axis, remember to include units
Graph 4: Velocity vs. Time
Excel graph, should have Velocity on y-axis, Time on x-axis, remember to include units
Extension Questions
1. A basketball dropped from the roof of a three-story building falls to the ground.
a. Ignoring air resistance, sketch the motion diagram for this motion, including approximate representations of the position versus time, velocity versus time, and acceleration versus time graphs for this motion.
b. Include axes labels, appropriate numbers, and units for each graph.
c. Take a photo of each of the sketches (including name and date)
d. And explain/annotate (typed) your sketches in words using complete sentences.
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