Science Unit 2 Review: The Engineering Process

What are the standards that help engineers determine how well a design is doing its job?

• data

• criteria

• models

• prototypes

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Cell phones, washing machines, and door knobs are examples of which human accomplishment?

• scientific observation

• university scholarship

• mathematics

• technology

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Which of the following is a procedure you could use to predict design flaws in a fabric used to make ships’ sails?

• analyzing the ship’s deck for strength

• testing to see how much cargo a sailboat can carry

• marketing the sails and recording customer complaints

• stressing the fabric with wind and weather over a period of time

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What does an engineering team need in order to test a new design?

• problem

• data

• patent

• prototype

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A group of engineers have developed four different models of a car. They have recorded data about each model’s miles driven per gallon. What would be the bestway for the engineers to communicate the results of their testing?

• detailed drawings of each of the cars

• a bar graph comparing miles per gallon

• a measurement of the size of the gas tank in each car

• a data table showing the number of miles each car traveled during testing

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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.

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Which of the following activities oftencomes after the others in the creative design process?

• redesigning

• developing charts

• testing a prototype

• brainstorm ideas

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Engineers design, model, and test many of the devices that we use every day. Which phrase below best describes the engineering process?

• designing new industrial tools

• gathering information to prove scientific theories

• using math and science to solve practical problems

• using raw materials to build structures and machines

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Engineers want to develop a more efficient dishwasher by decreasing the running time and the amount of water used per cycle. They design and test four different dishwasher prototypes. The bar graph below shows the results of their tests. Based on these bar graphs, which model best meets the engineers’ design criteria?

• Model A

• Model B

• Model C

• Model D

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While further testing their design, the engineers discover that dishwasher Model B doesn’t clean the dishes thoroughly. Which of the following is the best next step for the engineers?

• Apply for a patent for the Model B dishwasher.

• Start all over with a brand-new design for a dishwasher.

• Evaluate what is wrong with Model B and work to redesign it.

• Choose one of the other dishwashers to manufacture instead of Model B.

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