Transcript Balloon Toss Lab - Prep

The great Balloon Toss
Objective 6CD
Momentum & Impulse
Purpose:
• To investigate the effect of three variables:
• (mass, collision time, momentum, velocity
change)
Materials Required:
• Water balloons
• lab apron
• goggles
Data Table
• Record your mass, distance and time
in your table for each attempted toss.
• Calculate the velocity of each
attempted toss and record it in your
data table.
• Calculate the average velocity (Δv) of
your balloon and record it at the
bottom of your table.
Procedure
• Student lab groups will participate in a balloon toss contest.
• Each lab group will need two participants, a timer and a
recorder.
• Students will fill and mass their balloons before leaving the
classroom.
• Student participants will form two long lines 1 meter apart
facing each other and directly across from their partner.
• One student tosses the balloon to his/her partner while the
timer records the time it takes the balloon to reach the partner
while the recorder keeps track of distance.
• If the balloon is caught without breaking, then the team
remains in the contest; any group who breaks the balloon is
eliminated from the contest.
• All successful teams must now back up 1 meter.
• The balloons are then tossed back to the other partner.
• Once more if the balloon is caught without breaking, then the
team remains in the contest.
• All successful teams back up one meter.
• The process is continued until only one team remains.
Graphing Your Results
• Time should be used as the
independent variable, with distance
being the dependent variable.
• Indicate the data point for each toss:
time v. distance
• Using a star, indicate the calculated
average velocity on your graph.
• Draw a best fit line from the origin
through the star.
Analysis
1. Calculate the momentum of your balloon
at the greatest distance tossed.
2.Calculate the force of impact for your
balloon at the greatest distance tossed.
3.The force required to stop a balloon is
dependent upon the mass, velocity
change, and collision time for that
balloon. Use your calculations to express
your understanding of the relationship
between these variables.