Gears
Large gear driving a small gear.
What is gearing up?
3 parts to a lever.
What are fulcrum, effort, and load?
Force that wheels and axles reduce.
What is friction?
The groove around a pulley.
What is a race?
Wheel with teeth.
What is a gear?
Small gear driving a large gear.
What is gearing down?
Class lever that has the effort and load acting in opposite directions.
What is a 1st class lever?
2 types of Wheels & Axles.
What are single and seperate?
Getting more out of something than you put in.
What is Mechanical Advantage (MA)?
Meshed gears turn in this direction.
What is opposite?
Gear configuration that generates speed.
What is gearing up?
Lever known to maximize movement but also increases the effort needed to move an object.
What is a 3rd class lever?
Objects will a larger wheel diameter will travel farther than an object with a smaller wheel diameter. Assuming the same force is used to move the objects. T or F
What is true?
40 tooth Driver driving a 24 tooth follower.
What is a gear ratio 3 to 5?
Formula for calculating gear ratios.
What is f/d?
Type of gear used to transfer torque or speed in a linear gear train.
What is a spur gear?
Bottle opener, Nutcracker, wheelbarrow, 3 hole punch, & paper cutter are examples of what class lever?
What are 2nd class levers?
Worm gears have this many teeth.
What is one?
Type of gears that can be used to transfer motion 90 degrees but cannot increase or decrease speed and torque.
What is Bevel and Conical?
8 tooth follower and 40 tooth driver.
What is a gear ratio of 1 : 5?
Combined with a spur gear can transfer speed or torque 90 degrees.
What is a crown gear?
2nd & 3rd class levers have a load and effort moving in this direction.
What is the same direction?
These gears are asymmetrical which means they can only be used as a driver.
What is a worm gear?
Only has one tooth, is asymmetric, and only generates torque.
What is a worm gear?
Gear used to get driver and follower to turn in the same direction.
What is an idler?