Unit 1 Pretest

Many homes have heating and cooling systems installed. Which term best describes the beginning temperature of the home, before the heating or cooling system turns on?

• a feedback

• a control

• an output

• an input

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of these would an engineer be least likely to do when designing a bridge?

• define the problem precisely

• conduct background research

• conduct a controlled experiment

• study how natural systems work

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-4

During what step of the engineering process would a scientist most likely go to the library?

• communicating results

• testing and evaluating

• defining the problem

• conducting research

Engineers often use visual or mathematical representations to investigate objects that are very large or very small or are otherwise difficult to study. What is this process called?

• brainstorming

• experimenting

• modeling

• observing

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS1-4

What is the best example of the designed world?

• a city

• a cavern

• a riverbank

• an ocean reef

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

Which term describes the information that an engineer gathers during a design?

• data

• variable

• prototype

• observation

Tags

NGSS.MS-ETS1-4

Engineers perform tasks to compare the possible positive and negative effects of making a decision involving technology. What is the term for the task?

• risk-benefit analysis

• life-cycle analysis

• prototype

• input

Tags

NGSS.MS-ETS1-2

Wen is a bike messenger. He has found that it is difficult to carry large packages on his bike. He wants to find a way to carry larger packages. Which of these should Wen do first?

• consider tradeoff

• refine the solution

• model the solution

• define the problem

Tags

NGSS.MS-ETS1-1

Which of these is a limitation of using a model to study something?

• A model cannot represent a thing exactly.

• A model cannot illustrate things that are dangerous.

• A model cannot depict things that are too far away.

• model cannot show things that are too small or too large.

Look at the figure.

Of what is this figure an example?

• a model

• a hypothesis

• an experiment

• an observation

Tags

NGSS.MS-PS1-1