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3.3

QuestionAnswer
there are a total of 3 types of simple machines false
the forearm of the human body works like a third-class lever true
there are four types of classes of levers false
which factors determine whether a lever is a first class lever, second class lever, or third class lever the input forces, output forces and the fulcrum
what is a compound machine when two or more machines work together
how do you calculate efficiency of a compound machine divide
how can you use a wedge door stop, axe, and eating food
how can you use a lever your arm, your neck, and your foot
how can you use a pulley lift an engine, open your window blinds, and an elevator
flagpole pulley
roller skates wheel and axle
sailboat mast pulley
a lever pivot point fulcrum
an oar first-class lever
a hockey stick third-class lever
how can gears change there size and direction they go opposite directions
what happens to efficiency of the overall machine as more simple machines are added to it the efficiency decreases
Created by: hasleeth3835
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