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Simple Machines

QuestionAnswer
Lever A bar, a board, or cricle that pivots about a fulcrum
Wheel & Axle 2 circular objects of different sizes
Pulley Grooved wheel that holds a rope and a load
Inclined Plane A straight slanted surface
Screw Is an inclined plane rapped in a spiral
Wedges Double inclined plane that moves, used to split things apart
Formula for Work Work= Force x Distance
Unit for Work Joules
Formula for Power Power=Work Time
Unit for Power Watt
Power The rate at which work is done or how fast work is done
Example of Wheel & Axle Faucet, Door Knob, Handle, Wheels
Example of Inclined Plane Ramp, Stairs, Ladder
Example of Screw Lid of a jar, Bolt, A spiral staircase, Winding road
Example of Wedges Axe, Knvies, Tip of a nail, Teeth, Doorstep, Chisel
Example of Levers Scissors, Wheel Barrow, Can opener, Rake
First Class Lever Fulcrum is in the middle Ex. See Saw
Second Class Lever Load is in the middle Ex. Wheelbarrow, Nut cracker
Third Class Lever Effort is in the middel Ex. Hammer, Your Arm, Rake
FRE the FLE F-Fulcrum 1st class R-Resitance (Effort) 2nd class E-Effor 3rd class
Fixed Pulley Grooved wheel that holds a rope and a load. Changes the direction of the force. Ex. Flag Pole
Moveable Pulley Are attached to the load and decreases the amount of force needed to lift a load Ex. Block & Tackle
Created by: 28traversb
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