Systems

Grouping parts in systems allows us to study how (a)_________, (b)__________and flow in natural or designed systems

• (a) matter

  (b) energy

• (a) air

  (b) science

• (a) objects

  (b) heat

• (a) matter

  (b) electrons

_________________: Mater, energy and information that enters a system

• Input

• output

• income

• benefits

In this aquarium, oxygen released by first system " algae" is used by a second system the "red shrimp", this interactions between two systems happen when ------------------------------------

• The output of one system is the output of another

• The output of one system is the input for another

• The input of one system is the input for another

• When no inputs exist

Scientists and engineers rely on models and simulations to (a)____________systems and (b) ___________ their behavior

• (a) destroy

  (b) change

• (a) understand

  (b) change

• (a) understand

  (b) predict

• (a) change

  (b) change

A _______________ helps us understand the structure of an object or system

• Simulation

• statu

• Model

• Toy

______________use models to imitate the function, behavior or process under different conditions

• Model

• Simulation

• Objects

• Fun city

Models have limitations, which means they may not work exactly as the systems and objects they represent, this happens because they are studied ____________________

• In side their environments

• Outside their environment

• in a weird way

• in a carless way

Why do scientist and engineers use models to predict the interactions in a system?

• Because real life systems are too large to study

• Because real life systems are too complex

• Because models are less expensive

• Allow testing

A system is any set of objects that _____________ in some interconnected way.

• destroy each other

• are out of bounds

• work together

• match

Who chooses the boundaries of a system?

• A person working in a factory.

• The person studying the system.

• A referee

• The person collecting data and photos.