gears
what is a simple gear train
gears are meshed together and each axel only has 1 gear on it
what does a simple machine do
what is device used for altering the effort or direction of a force
what does the first class lever look like?
effort load fulcrum
E-----------L---------F
what are the two types of wheels and axles
single and separate
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 is the definition of gears?????
a wheel with teeth that transmits speed or torque
what is mechanical advantage
what is the increase in force provided by a machine
what are the tree parts of the level
effort fulcrum and load
what is one befit of wheels and axles
wheels reduce friction
what is the definition of a pulley
- a wheel with a groove around the outside ridge (race).
what is the definition of gearing down
a small gear driving a large gear
what are the 4 basic types of simple machines
what is a levers, wheels and axles, pulleys, and gears
what are class three levers examples
tweezers, human arm, wind mill
what is an example a crank handle AS A wheel
not all wheels are a solid disk
what is an example of a pulley
a crane
what is the definition of gearing up
a large gear driving small gear
give simple machine examples
What does a second class lever look like
Effort, Fulcrum, Load
wheels and axles examples
fan, bike,doorknob
what can a ridge be called
race
what are the 5 type of gears
Spur, crown, worm, conical,bevel
what other things does a simple machine do??
what is force you apply to apply to machines is magnified.
what a third class lever look like
Load, Effort, Fulcrum
what is 1 example of a wheel and axles
screwdriver
what is another example of a pulleys
a flag pole