Washington County Public Schools / Voluntary State Curriculum
VSC CO2 Car Project
Explain that requirements involve the identification of the criteria and constraints of a product or system and the
determination of how they affect the final design and development.
Explain that the design process is a systematic, iterative, approach to problem solving that yields design
Explain that the design process includes defining a problem, brainstorming, researching and generating ideas,
identifying criteria and specifying constraints, exploring possibilities, selection an approach, developing a
design proposal, making a model or prototype testing and evaluating a design, using specifications, refining
a design, creating or making it, and communicating processes and results.
3.A.4 Analyze the phases of the design process
Explain why designs need to be continually checked and critiqued, and the ideas of the design must be redefined
Explain that requirements of a design, such as criteria, constraints, and efficiency, sometimes compete with each
Describe the personal characteristics involved in engineering at least Creativity, resourcefulness, ability to
visualize and think abstractly
Explain that a prototype is a working model used to test a design concept by making actual observations and
3.B.5 Explain that the process of engineering design takes into account a number of factors.
Explain constraints on the engineering design process. At Least: Safety, Reliability, Economic Considerations,
3.B.6 Quality Control, Environmental Concerns, Manufacturability, Maintenance, Human Factors Engineering
Refine a design by using prototypes and modeling to ensure quality, efficiency, and productivity of the final
Evaluate the design solution using conceptual, physical, and mathematical models at various intervals of the
design process in order to check for proper design and to note areas where improvements are needed
Washington County Public Schools / Voluntary State Curriculum
CO2 Car Project
3.C.6 Develop and produce a product or system using a design process
3.C.7 Evaluate final solutions and communicate observations, processes, and results of the entire design
process, suing verbal, graphic, quantitative, visual and written means in addition to three dimensional
models. At Least: Define the problem, Brainstorm, Research and generate ideas., Identify criteria and
specify constraints, explore possibilities, select an approach, develop a design proposal, make a model or
prototype, test and evaluate the design, redesign, create or make it, communicate processes or results.
3.D.1 Select and use the appropriate tools and equipment in: making two-dimensional and three-
dimensional representations of design solutions, forming and molding processes., machining processes,
3.D.2 Select and use tools based on the properties of materials
3.D.3 Select and use tools and instruments in the testing and evaluation of design solutions.
4.A.1 Describe the core technologies (mechanical, structural, electrical, electronic, thermal, fluid, optical,
bio, and material) as they are applied in the designed world.
4.A.2 Analyze the functioning of the core technologies in the designed world. In terms of Common
components, basic system design, safety, simple controls, system performance evaluation.
4.B.1 Identify and describe application of mechanical technology in the designed world. Such as: Levers,
Inclined planes, Wedges, Wheels and axles, Pulleys, Screws, Gears, Cams, Linkages
4.B.2 Explain science concepts and mathematic processes applied in mechanical technology such as: Force,
Motion, Energy, Work, Power, Efficiency, Gravity, Friction
5.D.3 Explain that it is impossible to build an engine to perform work that does not exhaust thermal energy
to the surroundings
5.D.5 Explain that power systems must have a source of energy, a process, and loads
5.F.1 Explain that transportation plays a vital role in the operation of other technologies, such as
manufacturing, construction, communication, health and safety, and agriculture.
5.F.2 Analyze transportation systems. Such as: Land, Water, Air, Space
5.F.3 Analyze the role transportation plays in the operation of other enterprises, such as manufacturing,
construction, communication, health and safety, and agriculture.
How Fast Can You Go?
Co 2 Car Activity
1. What is CO2?
2. What event with the CO2 is happening to provide an
energy source to propel your car down the track?
3. What tools will you need to prepare your car?
4. What is the formula for speed?
5. How do you convert feet traveled per second into miles per
6. How will aerodynamics play a role?
7. Teachers are your wind machines working?
8. How is your CO2 car impacted by Newton’s laws of
9. Record one safety precaution you have taken on each
piece of equipment you used to build your car.
The Design Brief
You are the head of the drag racing team
commissioned to design, construct, and race
the fastest drag car of the future, powered by
compact CO2 (carbon dioxide gas) power
plants. In order to enter the championship,
you must design, manufacture, and race your
car using the specified instructions in the
14” long x 3 ½” x 1 ½”
8” Long x 3 ½” x 1 ½”
* Track length = 50 Feet
* 2 Eye hooks on the bottom of the vehicle to serve
as a guide for the wire
* Pine wood
* CO2 Cartridge must be safely encased in the
vehicle; Dimensions of Hole ???L X ????W X
* Three CO2 cartridges per vehicle best time will be
counted, you may modify your vehicle between
*Creativity in design and décor must be school
Things To Consider That May
Impact Performance Of Your Car
Rules of the competition
Top 3 Times Of The Day
1 st 2 nd 3 rd
• What time did your car have for the competition?
• What modifications did you do to your design before production?
• What changes to the design would you do after the competition?
• What were some design flaws you have encountered?
• Could CO2 be used to propel cars on the road today?
• What constraint was the most difficult to follow in your design?
• Was it better to have a lift force or a down force aerodynamics style?
Miles Per Hour?
• Your race time on the Speedway Clock tells you
that it took ___ seconds to travel 50 feet.
• Can anyone tell the class how to convert your
speed to miles per hour? Anyone? …The way
speed limits are measured in cars. Anyone?
• Anyone… Anyone … Anyone…
» Ben Stein from Ferris Bueller’s Day Off
Here is what is known:
1. The number of seconds it took your car to
travel 50 feet
2. There is 5,280 feet in a mile
3. There are 3600 seconds in an hour