Engineering Design process

A student team is assigned to construct an object. They start by listing the steps they will follow. In the design process shown below, which is the missing element?

• Keep Going

• Brainstorm ideas

• test and improve

• Choose an Idea

Jason and Luis have designed and tested a tool to help them construct a backyard birdhouse. Now they are writing a summary of their conclusions. What will these conclusions communicate?

• whether the data reflected the purpose

• whether the design process created the data

• whether the design matched the model

• whether the prototype met the criteria

Leah and Deborah are asked to design a backpack with the purpose of making it less bulky. How are the purpose of a design and the design criteria related?

• The criteria are set to determine whether the design achieves the purpose

• The purpose must be adjusted before the prototype can be tested.

• Setting criteria show whether the purpose was set correctly

• The purpose is only important until the criteria are set

A movie theater installed a ramp like this one for people in wheelchairs to use.

The ramp helps them, but it is not a prosthesis. Why?

• It is technology engineered to meet a need.

• It does not replace a body part.

• It is also used by people who do not need wheelchairs.

• It is not the quickest way to get a wheelchair into a theater

A group of engineers is working on a design to improve the technology of an artificial heart. Which of these criteria should the engineers include in their design?

• It should efficiently pump blood to the lungs and body

• It should be made from common and affordable materials.

• It should math the color and texture of a real human heart.

• It should be able to be controlled and adjusted by the patient.

The picture below shows a person using a walker to get around

Which is a true statement about this device?

• It is not a prosthetic because a walker is not a biotechnology.

• It is a prosthetic because a walker assists a damaged body part.

• It is not a prosthetic because the people who use it have their legs

• It is a prosthetic because walkers have been designed and tested by bioengineers.

Technology brings benefits, but also risks. Which of the following is the best example of a physical risk associated with cell phones?

• They distract people while driving

• They link people to hurtful Web sites

• They cause students to get poor grades

• They are thrown away and end up in landfills

The design criteria for a new artificial heart include measuring the heart’s durability. The chart below shows results of testing several models of a new artificial heart. Each model was tested until it showed obvious signs of wear.

Which two models best meet the new artificial heart’s design criterion for durability?

• Models C and D

• Models B and D

• Models B and C

• Models A and B

Which of the following activities often comes after the others in the creative design process

• brainstorming ideas

• testing a prototype

• developing charts

• redesigning

Scientists or engineers often build a prototype of a design that they can test. Observing how the prototype performs shows the engineers how their design works. Which is another tool scientists use that is similar to a prototype?

• a balance

• a bar or circle graph

• a model of the design

• an experiment using the design