Balloon Motion Activity
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Materials
Balloons, string, stop watch and meter sticks.
Procedure:
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String should be stretched across the room to another point in the room.
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Using a 2-3-inch section of straw tape the straw to the balloon. Inflating the balloon at this point might be helpful.
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Measure the circumference of the balloon and record.
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With the help of your partner attach the balloon to the string.
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As close as possible start time and release the balloon.
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Measure the time it takes the balloon to stop. Record.
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- the distance it takes the balloon to stop. Record.
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Repeat following trials with different circumferences.
Data
Trial
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Time (second)
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Distance (meters)
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1
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2
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3
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4
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Calculations
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With the graph paper provided, setup a graph of each trial.
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Calculate the average velocity of each trial.
Analysis Questions
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In your own words, why does the balloon move?
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Does the balloon move after the balloon is deflated, in your own words, why yes or no?
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Velocity
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In your own words, what is speed.
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How might you calculate speed?
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What might be the difference between the balloons average speed and its instantaneous speed?
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Is there a difference between a speed and velocity?
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What part of your graph might indicate speed?
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Acceleration
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In your own words, describe acceleration.
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What part of your graph might indicate acceleration?
Graphing (place all graphs here)
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