. You are faced with the situation shown here, a filthy pet, and decide to confront it using technology. Using the numbers 1–5, arrange these steps to show one way you could proceed.Reorder the following

• Evaluate test results

• Identify the problem to be solved.

• Research existing related technology.

• Design a prototype to solve the problem.

• Build and test the prototype.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-3

Which statements are true of the object shown here? Select all that apply.

• It meets a want or need.

• It can be found in nature.

• It meets no specified criteria.

• It was designed by engineers.

• It is an example of technology.

Which pair of factors defines any engineering problem? Select all that apply.

• criteria and constraints

• wants and needs

• time and expense

• nature and technology

• It is an example of technology.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Match the following correct word or phrase to complete each sentence.

• states the desirable features of a solution.

• improve their designs

• An engineer can find things needing improvement by isolating

• A set of criteria

• Limits on solving a problem are called

• a single thing

• Engineers test and retest to

• failure points

• Testing a prototype works best when the engineer observes and measures the effects of changing

• constraints

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Match the following correct word or phrase to complete each sentence.

• That term refers to

• improve their designs

• Engineers test and retest to

• constraints

• Limits on solving a problem are called

• failure points

• Testing a prototype works best when the engineer observes and measures the effects of changing

• design difficulties

• An engineer can find things needing improvement by isolating

• a single thing

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-3

Match the following correct word or phrase to complete each sentence.

• An engineer can find things needing improvement by isolating

• collaboration

• gets you a lot of ideas quickly.

• design difficulties

• Engineers test and retest to

• Brainstorming

• However, we say that “ leads to optimization,” because sharing successes often helps make the best.

• failure points

• That term refers to

• improve their designs

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Which steps from the previous exercise are likely to be taken more than once? Select all that apply.

• Evaluate test results.

• Improve the prototype.

• Construct a final design

• Retest improved prototype.

• Identify the problem to be solved.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

What makes crash test dummies useful substitutes for human beings?

• They contain sensors that collect data.

• They are able to avoid collisions.

• They have been used since the 1950s

• They are smaller than average humans.

• Identify the problem to be solved.

Tags

NGSS.MS-ETS1-3

Which of the following name good reasons for repeated engineering testing?

• to ensure safety

• to solve problems

• to reduce feedback

• to eliminate criteria

• to develop a final product

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

How is communication an important part of designing solutions?

• Communication helps people talk about improvement.

• Communication helps identify problems.

• Communication only causes arguments.

• Communication builds a sense of teamwork.

• Communication is critical only if everyone agrees.

Answer explanation

• An engineering design solution might not actually work when tested. Thus, it is important to try several alternatives to improve the chances of success.

• Identifying what doesn’t work helps engineers improve a prototype.

• Communication is critical to any team because hearing others’ feedback can lead to fresh ideas.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4