Gears
What does gearing down generate?
What is torque
Wheel and axle examples
Screw driver, wind mill, rolling pin, fan, doorknob, bicycle
What are the three parts of a lever?
Fulcrum, Effort, Load
What is MA?
Mechanical Advantage
What can pulleys do?
Change the amount of force, needed to do work, change the direction of force, speed up, slow down, or change the direction of forces
What are the two types of wheels and axles?
Single and Separate.
What part of a lever is in the middle of a first class lever?
Fulcrum
What are gears?
What is a wheel with teeth.
What is a pulley?
What is a wheel with a groove around the outside ridge (race).
What is a lever?
It can change the the direction of force, the range of movement, and change the amount of force needed to do work.
What is the definition of Mechanical Advantage
The increase in force provided by a machine. The force you apply to a machine is magnified.
Name the five types of gears.
Spur, Bevel, Conical, Worm, and Crown
Give an example of a second class lever
Bottle opener, nutcracker,wheelbarrow, 3 hole punch, and paper cutter
Give an example of a third class lever
tweezers, baseball bat, oar, rake, nail clippers