MACHINES AND INVENTIONS.
MACHINES.
Quiz (by Juan Luis Serrano Pedrosa).
Show all questions
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A pulley.
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A ramp.
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A lever.
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A pulley.
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A ramp.
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A lever.
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A pulley.
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A ramp.
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A lever.
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A pulley.
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A ramp.
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A lever.
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A pulley.
?
A ramp.
?
A lever.
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A pulley.
?
A ramp.
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A lever.
OK