Radience

What is Engineering K-2-ETS1-1

NGSS

compound machine

a machine made of two or more simple machines
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machine

a device that makes work easier by changing the size or direction (or both) of a force
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output force

the force exerted by a machine
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pulley

a simple machine made of a wheel with a rope around it
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wheel and axle

a simple machine made of a wheel with a rod joined at its center, they rotate together
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