Eaaa!! xD

Clasificado en Apuntes de Otras materias de Otros cursos.

Escrito el 10 de Mayo de 2009 en esEspañol y con un tamaño de 494 bytes.

8-. Class 1 and class 2 levers both provide mechanical advantage. This means that they allow you to move a large output load with a small effort.
11-. A pulley system consists of two pulley wheels each on a shaft, connected by a belt.
16-. Gears consist of toothed fixed to shaft. a gear train is a number of gears connected together.
20-. A cam is a shaped piece of metal or plastic fixed to a roating shaft.
21-. It changes rotary motion into linear motion.
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