Drawing

DEPCOllc
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E10
Engineering Trebuchets
Visualizing and Describing The Engineering of Totally Trebuchet
This rubric is offered as an example. Teachers and students are encouraged to create assessment tools
that reflect their needs and expectations.
Required Skill or
Competency
Meets or Exceeds
this Requirement
Score 4-5 pts
Meets Some of
this Requirement
Score 2-3 pts
Meets little or None
of this Requirement
Score 0-1 pts
Explain how forces and energy in a
trebuchet system are affected by
scaling.
Calculate the maximum theoretical
range of a trebuchet given the drop
height of the counterweight and the
masses of the counterweight and
projectile.
Calculate the range efficiency of
the trebuchet.
Use the TrebStar computer
simulation to design and record the
performance of a full sized trebuchet
with a uniform beam.
Explain and describe the
engineering process in writing.
Use the engineering process to
invent a device or process to
improve the performance of a model
trebuchet.
Use a calculator or SolidWorks to
find the moment of inertia about the
axle of a uniform beam of given
dimensions and mass.
Calculate the radius of gyration of
a trebuchet beam given the distance
between the point mass and axle.
Test and graph the relationship
between any of the eight trebuchet
independent variables (Parameters)
and a dependent variable.
Design a tapered trebuchet beam.
Use SolidWorks to create the
models and calculate the volume,
mass and center of gravity.
Use the CM and RG values
calculated by Don Siano to make
simulated hurls based on the
dimensions and masses of the
GEARS model trebuchet.
Build Report/Notebook assessment
Sample Engineering Curriculum