A collection of parts that perform a function

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Presentation transcript:

A collection of parts that perform a function System A collection of parts that perform a function

Input: items needed to start the system What are some inputs into a car?

Explain the process in a car Process: the ordered action of the system Explain the process in a car

What is the output on a car? Output: the finished product or waste from the process What is the output on a car?

Feedback: when the output alters earlier inputs in the system

Feedback

Open-loop systems - set up to get a result, but there's no feedback to check the results these create waste For example, bathroom heater The aim of the system would be to heat a bathroom. When turned on, the heating would stay on until it was turned off, regardless of whether the bathroom remained cold or became too hot.

Closed-loop systems Are able to correct in order to meet target results. Have a Feedback and are self-contained For example: modern heating/AC systems a thermostat could be added to measure the temperature of a room and compare it to a set target. If the room became too cold, the thermostat would turn the heating on and if the temperature became too hot the system would be turned off.

Is this open or closed loop? Why?

Is this open or closed loop? Why?

Is cruise control an open or closed loop system? Why?

Is a basic light switch open or closed loop system? why?

Is a light that shuts off if no one is in the room, open or closed loop? Why?

Estuary – if river meets the ocean

Chesapeake Watershed

Estuary – where freshwater meets the ocean https://oceanservice.noaa.gov/facts/estuary.html

Cycles - a series of repeating events

Symmetric - one side is a mirror image or reflection of the other.

Symmetric?

Symmetric?

Geometric pattern

Geometric pattern What geometric shape repeats itself inside the roof Trusses?

Periodic Pattern

Patterns in nature