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6 SIMPLE MACHINES
CARMALT - definition given, you give machine name
definition or example | name |
---|---|
device that changes the direction and/or magnitude of a force | simple machine |
rigid object used with a fulcrum to increase mechanical force being applied to another object | lever |
What class lever has the fulcrum located between the input effort and the output load? | First-class lever |
What class lever are these examples: seesaw, crowbar, pliers, scissors? | First-class lever |
What class lever follows this design?-input effort applied at the end of a bar-fulcrum located at opposite end of a bar-output load is at point between input and fulcrum | Second-class lever |
What class lever are these examples? nutcracker, wheelbarrow, bottle opener, wrench | Second-class lever |
What class lever follows this design?-input effort is higher than output load-input effort is applied between output load on one end and the fulcrum on the opposite end | Third-class lever |
What class lever are these examples?mousetrap, nail clippers, stapler, hammer | Third-class lever |
an inclided plane wrapped around a shaft | screw |
blender, automatic garage doors, drill bit | screw |
a lever that turns a central rod or fulcrum | wheel and axel |
bicycle tire, ferris wheel, gears | wheel and axel |
l | |
point where force is applied is called effort, effect of force is called "load" | lever |
flat surface whose endpoints are at different heights | incline plane |
ramp, sliding board, knife blades | incline plane |
also known as "block and tackle"rope, cable, belt, or chain placed inside a wheel's track and around its circumference | pulley |
blinds, shoe laces, flagpole, water well | pulley |
triangular shaped tool with 2 or more sloping surfaces that taper to a thin edge; the narrower the angle the less force is required | wedge |
chisel, axe, fork tines, door stops | wedge |
any combination of simple machines that work together | complex machines |
airplane, automobile, telephone, vacuum cleaner, sewing machine | complex machines |