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2780409
Technology 2
Description
Mind Map on Technology 2, created by eohanlon882 on 21/05/2015.
Mind Map by
eohanlon882
, updated more than 1 year ago
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Created by
eohanlon882
about 9 years ago
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Resource summary
Technology 2
Mechanisms
Input: are what you do e.g hole puncher-push down on lever
Output: are what happens e.g hole puncher-holes are punched in paper
Motion
Linear: movement in a straight line
Reciprocating: movement backwards and forwards in a straight line
Oscillating: movement backwards and forwards in an arc
Rotary: movement in a complete circle
Levers
three parts: effort, load, fulcrum
Class 1: fulcrum between the effort and the load
Class 2: fulcrum at one end, the load in the middle and the effort at the other end
Class 3: fulcrum at one end, effort in the middle and load at the opposite end
Linkages
Reverse motion: top rod moves to left and bottom moves to right
opposite directions and the fixed pivot is centre of rotation
Push and Pull: large rod at the top of the diagram moves to the left the two small rods at the bottom move to the right
rods are parallel
Double arm: linkage will change a reciprocating motion into two oscillating motions
can be found on novelty coat hooks
Cams
three parts: follower, axle, cam
three main types: pear shaped, circular and heart shaped
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