Unit 1: Engineering and Society; LSN 1: Engineering and Society

Which is a true statement about the work of engineers and the work of scientists?

• Engineers analyze data, and scientists do not.

• Scientists often work in teams, and engineers do not.

• Both follow a series of steps to find solutions to problems.

Engineers use a design process to invent or improve machines. What is the first step in this design process?

• Make a prototype of the design.

• Make a graph to show how well the design worked.

• Keep notes and drawings of the design throughout the process.

• Identify a need or problem to be solved.

A student team designs a device to meet a human need. Then the students build a prototype.

Which of these best describes the purpose of a prototype?

• to develop ideas for a solution

• to show how the design will look

• to test the quality of the conclusions

• to see whether it meets design criteria

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

• Data

• Criteria

• Models

• Prototypes

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Why should engineers test their designs?

• to find ways to improve their designs

• to make them smaller and more compact

• to change the design to be more profitable

• to discover solutions to problems that have not yet occurred

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What is the purpose of a prototype?

• to gather data

• to test a design

• to identify a problem

• to communicate results

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How are models used in the engineering design process?

• Models are lists of needs to be addressed.

• Models are things that can be tested and analyzed.

• Models are the final products sold to consumers.

• Models are tables of data that can be sorted and analyzed.

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Why do scientists follow the design process?

• to find solutions to problems

• to understand how Earth formed

• to practice making measurements

• to use the same solution for every problem.

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Engineers designed a machine that will decrease air pollution. What is the main purpose of telling others about this machine?

• to build a prototype

• to gather data about a problem

• to keep people from copying the design

• to help other people solve the same problem

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Which is the correct definition of a tradeoff?

• Giving up one feature to gain another

• Changing a design feature due to people's needs

• Making sure a design gives people everything they want

• Adding many features to a design

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