Systems and System Models

A combination of related parts organised as a whole is called a:

• System

• Model

• Mannequin

• Modelling

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NGSS.MS-LS1-3

One of the following is not a system

• 
• 
• 
• 

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NGSS.MS-LS1-3

NGSS.MS-LS2-3

Select ALL that is true

• A model is a simple representation of a system

• Models are expensive!

• A toy car is a model of a real car

• A model helps you understand a system

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NGSS.HS-ETS1-4

NGSS.HS-LS1-2

Pick the reasons why we use models

• Models are expensive

• Models help you understand complex systems

• Models are used when systems are too expensive or impossible to use

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NGSS.MS-ETS1-4

The manipulation of a model in such a way that it behaves like a real system is termed:

• Simulation

• Modelling

• Manipulation

• Organization

Tags

NGSS.MS-ETS1-4

Which of the following events is an important part of the engineering design process?

• testing and evaluating models

• evaluating design constraints

• designing and building models

• all of these

Tags

NGSS.MS-ETS1-4

NGSS.MS-ETS1-2

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Science and society often influence one another. Which of the following projects is most directly influenced society's desire to cut down pollution?

• the construction of more fossil fuels burning factories

• the burying of old batteries and computer parts in landfills

• the increased use of aerosol sprays and plastic containers

• the development of fuel efficient hybrid cars

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-1

NGSS.HS-LS2-7

Heat is ___ of the system.

• an input

• a subsystem

• a trigger

• an output

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NGSS.HS-PS3-4

Models can be helpful in scientific investigations because

• it may not be possible to work with the real thing.

• they can be smaller and more manageable than the real thing.

• they can be safer to work with than the real thing.

• all of the above

Tags

NGSS.HS-ETS1-4

The kidneys are organs that filter wastes out of the blood stream. Which of the following objects could best be used to make a simple model of a kidney?

• block of wood

• coffee filter

• plastic bag

• water pump