Life Vest Challenge

Let’s review what we know about Density… 5 Facts About Density Video

Life Vest Challenge Design and construct a personal flotation device that can keep a can of soup afloat for at least 60 seconds.

Constraints: Device must be in one attached piece Some portion of the can must touch the water Device must attach in less than 20 seconds You may only test your prototype 3 times before presenting.

Possible Materials: Paper cups Straws Rubber bands Paper clips Tape Balloons Plastic baggies Glue Foil Corks Foam pieces String Hose Small containers Any other items approved by management

Life Vest Challenge Don’t forget your teacher checks!!! Work through your engineering design process lab sheet. Don’t forget your teacher checks!!!

Life Vest Challenge Presentations Prepare a 6 slide presentation to share your design challenge with the class.

Picture of final design Life Vest Challenge Presentations Slide 1should include: Title of challenge Team name Team members Picture of final design    

Team Go With It: Rashanna Freeman, Brett Strittmatter, Cardboard Chair Presentation   Team Go With It: Rashanna Freeman, Brett Strittmatter, Dee Thompson

Life Vest Challenge Presentations Slide 2 should include: Restating of design challenge Restating of requirements and constraints

Cardboard Chair Challenge Design a chair constructed of corrugated cardboard that can support a 200-lb person. may not use glue or tape to fasten any component of your chair together. May use tape as a temporary support, but all of this material must be removed when the final evaluation begins. May use other materials as fasteners (i.e. hardware) but they must be approved by the instructor.

Reasons why you chose your design Life Vest Challenge Presentations Slide 3 should include: Pictures of 3 sketches Reasons why you chose your design

Cardboard Chair Challenge We chose this design because we thought the triangular base would support the 200 pound weight. We chose this design because we thought the lounging design would provide more comfort.

Life Vest Challenge Presentations Slide 4 should include: Sketch of the design you test List of modifications you made during trials

Cardboard Chair Challenge We chose this design because we thought the triangular base would support th 200 pound weight. We chose this design because we thought the lounging design would provide more comfort.

Video of your final test Life Vest Challenge Presentations Slide 5 should include: Results Video of your final test

Cardboard Chair Challenge Our chair easily held the weight of the instructor, The back piece did bend, still provided some support.

Life Vest Challenge Presentations Slide 6 should include: Thoughts from your team reflections What things went well during challenge Struggles and how your faced them Changes you would make next time

Cardboard Chair Challenge Our team really struggles during the design phase. We had a hard time converting our measurements to 1/10th scale. WE also struggled to build our scale model. Upon reflection, we found that these struggles made our construction phase go much smoother. We had worked out many problems we would have faced during the design phase. After reflecting, our team would make the following changes to our design: Make base 1.5 feet tall instead of 2 feet tall. Provide more support in the back piece.