Systems and Models

Heat is ___ of this system.

• An input

• A subsystem

• A trigger

• An output

A group of inter-related parts working together to make a complex whole is called a

• technology

• process

• system

• feedback

Which of the following are characteristics of a good model?

• The model explains how a complex concept arises from simpler concepts and ideas.

• The model can compare poorly understood aspects of the real world to a well-understood aspect.

• The model is testable and generates predictions that reflect what is happening in reality.

• All the responses are correct.

What is an emergent property of a system?

• The combined features of all the elements in a system.

• The feature that only shows as a result of all elements working together in a system.

• The feature of every element in a system that seems to disappear when elements work together in a system.

• The feature of a system that is also present in every element of that system.

What topic would you use this physical model to study?

• The nervous system

• Photosynthesis

• DNA

• Climate change

If you are studying the aquatic system within a small pond what would the boundary of the system be?

• The water

• The shoreline

• The fish

• The plants

What is a reason that scientists use models to study different systems?

• System is too large

• System is too dangerous

• System is too complicated

• All of the above

If you have a computer system which of these is not an input?

• Downloaded files

• Microchips

• Electricity

• Wifi