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Tech. Study Guide
Extra help for elective MSL
Term | Definition |
---|---|
Technology | modifying the natural environment to satisfy human needs and wants. |
Criteria | goal or problem that you are solving. Your solution must solve this problem. |
Constraint | limitation to your design;it could be money, size, color, etc. |
System | group of units or parts that work together. |
Sub-System | unique, independent systems necessary for the overall structure or system to function. |
Open-Loop System | system in which there is no feedback. (Input>Process>Output) |
Closed-Loop System | system in which there is feedback. (Input>Process>Output>Feedback) |
Input | anything put in to a system. Can be capital ($),raw materials, people(labor),fuel,etc. |
Process | process of changing/using the inputs; ex.the burning of the fuel to produce power/work in an engine. |
Output | results of the system;can be power, movement,a product,etc. |
Feedback | info. about the system that can be used to alter the system. Can be a gauge or other measurements. |
Positive Impacts | when a technology solves problems and makes life easier for humans. |
Negative Impacts | when a technology creates problems and has consequences for humans. |
Maintenance | checking components of a system before they breakdown. |
Newton’s 1st Law | object remains still or remains in motion unless acted upon by an outside force. |
Newton’s 2nd Law | force = mass x acceleration; the greater the mass,the more force that is needed to move it. |
Newton’s 3rd Law | for every action, there is an equal and opposite reaction. |
Types of Energy | unlimited(wind, solar),non-renewable(will run out, like oil), renewable(will replenish with time, like bio fuels). |
STEM Integration | the combination of Science, Technology, Engineering, and Mathematics in Technology, Engineering, and Design. |
Science Knowledge for Tech | using scientific theory/discoveries to advance technology. |
Social Studies for Tech | examining technology’s impact on society. |
Language Arts for Tech | using speaking and writing skills for technology;for example, writing a technical report about a design. |
Mathematics for Tech | using mathematics for the design of inventions/technology;For example, using geometry to design a structure. |