how many types of simple machines are there?, 5, 6, what does "escalator" mean?, schody ruchome, winda, axe at the cutting edge has an example of, wedge, inclined plane, What does "inclined plane" mean?, klin, równia pochyła, how many types of levers are there?, 4, 3, class one lever has fulcrum set in the middle of it, true, false, what does "fulcrum" mean?, punktowy nacisk, punkt podparcia, How many types of cams are there?, 3, 2, what does "gears" mean?, Wałek, koła zębate, what does "piston" mean?, tłok, cięgno, what does "mechanical advantage" mean?, przewaga motoryczna, przełożenie siłowe, ramp is an example of, wedge, inclined plane, screw is a wedge wrapped around, cylinder,shaft, rectangle, cone, if we add more pulleys to the system we need ... to lift object, less effort, more effort, what does "linkage" mean?, połączenie, punkt podparcia, how many linkages are there?, 5, 3, parallel-motion linkage gives ... motion, Identical, 90 degree, what does "dwell" mean?, pozostać, upadać, what does "eccentric cam" mean?, Krzywka w kształcie gruszki, krzywka mimośrodkowa, what does "torque" mean?, moment obrotowy, tarcie

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