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Simple Machines and Levers - Coggle Diagram
Simple Machines and Levers
Inclined Plane
Examples:
Stairs
Escalator
Inclined Ramp
Assists moving things up and down.
A plan surface, set at an angle against a horizontal surface.
Force required to raise reduces as distance over force applied increases
Screw
Converts rotational motion into linear motion
Properties:
Strength of screw = width of threads and distance
Threads increases, rotations required increases.
The wider the screw, more force required to screw it.
Uses:
Hold things together
Lift heavy things
Drill holes
Pulley
Contains:
Wheel
Rope
Axle
Groove, guides the rope
Increase in pulleys = Increase in Mechanical Advantage
Mechanical Advantage = (Output F)/(Input F)
Up in M.A = Increase in length of rope.
Increase in rope length = decrease in effort force
Equals to longer period of time to pull
Wedge
Contains:
2 inclined planes with their height together.
Effort/force applied on the flat side
Uses:
Hold things in place
Lift heavy load
Cut things to portions
Properties:
Force applied Inversely Proportional to Incline angle.
Decrease in angle, increase in force applied
Increase in angle, decrease in force applied
Wheel and Axle
Friction- Force resisting motion of object on ground
Gravitational force = force pulling object to the ground.
Contains:
Axle
A rod
Wheel
Wheel, pivoting the Axle
Reduces friction to make it easier to push the object to different places.
Examples:
Wheel Chair
Roller skates
Bicycle
Car
Levers
Consists of:
Load
Effort / Force applied
Fulcrum / Pivot
Long rigid body with fulcrum along its length
3 Classes
Third class lever, L E F
Second class lever, F L E
First class lever, L F E