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Goal: Build a Roller Coaster out of K’nex that will make a
complete loop. Your car
needs to make it from the beginning of the coaster and back to the
beginning and begin again.
Teams: Teams can be made of 4 – 5 team members.
At least one female and one male must be on each team.
Procedure:
1.
Plan
out your coaster.
2.
Build
your car.
3.
Build
your coaster. (50 points) Begin the coaster with a piece of track that
will pull your car to the top of the first peak.
Your coaster track may include loops and other special design
features of your choice.
4.
Using
graph paper and assume that your track is linear instead of
“circular” for this stage, graph distance on the track on the
x-axis and height on the y-axis. Use cm as your unit of choice.
(25 points)
5.
Test
your car on the coaster. Use
stop watches and your graphs to find:
·
the
average velocity for your car on your track. Include your calculations.
(cm/sec) (25 points)
·
the
maximum and minimum velocity by graphing distance vs. time on a graph.
Note where the car reaches these velocities on the graph and show
your calculations. (25 points)
·
the
interval where the acceleration is the largest and the least and justify
how you know this. Note
this on your graph. (20 points)
6.
Complete
the information sheet (20 points) and
Evaluation/Reflection Sheet (25 points). Attach your graphs and
calculations to the back of the information sheet to turn in on May 27.
Evaluation/Reflection Sheet should be completed by each
individual without other team member input and turned in separately on
the 28th.
7.
If
your car completes the track and continues at least once more without
help,
you may earn extra credit by :
·
Having
the tallest peak
·
Having
the fastest average velocity
·
Including
loops
·
Having
the Longest track
·
Special
features
8.
Testing
of your coaster for a grade will take place on May 27, 2002.
All graphs and other information must be handed in at the
beginning of the hour or your coaster will not be tested and no grade
will be given.
NO LATE WORK
WILL BE GRADED! Work
efficiently and plan carefully. 50
points as a Project Grade:
and 25 points will be put into each of the homework,
participation, and test categories.
9.
Team
evaluations are due at the beginning of Thursday, May 28th. Coasters
will need to be disassembled and put back in their tubs by Thursday, May
28, 2002 (10 points).
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