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GEARS+-+the+Basics.mp4Using the video, and your own research, draw Sketch Notes on Gear Basics. Be sure to define and explain:
Gears
Drive vs Driven |OR| Input vs Output
Speed
Torque
Gear Ratio
Sketchnotes are purposeful doodling while listening to something interesting. Sketchnotes don't require high drawing skills, but do require a skill to visually synthesize and summarize via shapes, connectors, and text. Sketchnotes are as much a method of notetaking as they are a form of creative expression.
Basics of Sketch-noting:
Text
Containers
Connectors
Frameworks
Icons/Symbols
Shadowing
Color
Understanding Gears:
SPEED
vs
TORQUE
Understanding+Gears_+Speed+Vs.+Torque.mp4Calculating Gear Ratio and Mechanical Advantage
Now that you know how many teeth are on each gear, you can find the gear ratio relatively simply. Divide the driven gear teeth by the drive gear teeth. For this assignment, you must write your answer as a fraction, then simplify it, then write in ratio form (i.e., x : y ) and mechanical advantage.
In our example, dividing the 84 teeth of the driven gear by the 60 teeth of the drive gear gets us 84/60. We can simplify this to 7/5 and use the ratio 7:5. Using division, we know that a 7:5 ratio results in a mechanical advantage of 1.4.
What this gear ratio means is that the smaller driver gear must turn 7 times to get the larger driven gear to rotate 5 times. This makes sense — since the driven gear is bigger, it will turn more slowly. Therefore, this simple gear train is a torque multiplier and a speed divider.
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