Group 1
A push or a pull on an object
What is a force?
Motion in a circular direction
What is rotary?
Gears that transform input motion and force into output motion and force
What are mechanisms?
How many times the gear turns
What is speed?
Force in a circular direction
What is torque?
First gear in the system
What is the input or the drive gear?
Last gear in the system
What is the output or driven gear?
Opposite (one goes up, the other goes down)
What is inverse?
Can the input and output change places?
What is flow of power?
Number of times the input turns compared to the output
What is gear ratio?
Can the gears turn clockwise and counterclockwise?
What is direction of travel?
Motion in a straight line
What is linear?
If the input gear has 12 teeth and the output gear has 36 teeth, what is the gear ratio?
36/12 or 3 to 1
If the input gear has 40 teeth and the output gear has 12 teeth, what happens to speed in the output?
Speed will increase.
Motion that is back and forth or up and down
What is reciprocating?
Gear between input and output gears. Used to change the direction the output gear turns.
What is the idler gear?
If your input gear has 60 teeth and the output gear has 60 teeth, what happens to speed and torque in the output?
Speed and torque are constant because the gears are the same.
If the alignment of the gears is such that they are side by side, then they are ________________?
What is parallel?
In a simple gear system with an idler (input,idler,output) what direction do the input and output gears turn compared to the idler?
The input and output turn opposite to the idler.
Name the two gear systems you built that reduce speed and increase torque.
What is Worm and Wheel and what is Lead Screw?
If gears are aligned at a right angle they are _____________.
What is perpendicular?
Name a gear system that can have constant torque and speed or can increase/decrease them, depending on the gear sizes.
What is Simple Gears, Simple Gears with Idler, or Chain Drive?
Name a gear system that can not change the flow of power.
What is the Worm and Wheel, Cam and Follower, Crank and Slider, the Lead Screw?
What gear system uses a sprocket gear?
What is a chain drive?
What happens in a belt drive if the belt is crossed?
The drums turn in opposite directions.