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levers - Coggle Diagram
levers
how levers help us preform tasks easily
increasing force
moving force from one place to another
increasing speed
accuracy in performance
increasing distance
avoid dangers
types of levers
second class levers
they are levers that have the resistance force between the effort force and fulcrum
example
nutcracker
bottle opener
wheelbarrow
they always conserve effort because the arm of force is always longer than the arm of resistance
third class levers
they are levers that have the effort force between the resistance force and fulcrum
example
manual broom
tweezers
hockey bat
they don't conserve effort because the arm of resistance is longer than the arm of force
first class levers
the most popular type of levers on our daily life
the fulcrum is between the effort force and resistance force
example
seesaw
scissors
pliers
balance
there are 3 possibilities for energy conserving
arm of resistance is equal to arm of force thus no conserving of effort will happen
arm of force is smaller than the arm of resistance thus there is no conserving in effort
the arm of force is longer than the arm of resistance thus it will conserve effort
components of levers
resistance force
fulcrum
effort force
law of levers
the force × its arm = the resistance × its arm
video illustrates and explains levers
https://www.youtube.com/watch?v=MohoOwQS7iU
A lever is a rigid bar that rotates around a fixed point called the fulcrum, and is affected by a force and resistance
