Completar frases PalancaVersión en línea Una actividad para ayudarte a comprender que es una palanca(en inglés). por Naím Martínez López 1 second third pulling fulcrum stick heavy points simple first pivot wheelbarrow Lever is a machine . It consists of a long that moves objects by pushing or against a point or . Different classes of levers have different fulcrum . For example , a boat oar is a - class lever , a is a - class lever and your arm works as a - class lever .
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