Samuels PS Simple Machines

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What type of simple machine has a rope or cable that passes over a wheel to keep the force the same or multiply it?

Can a simple machine lose work input (produce less work that was put in)?

What type of simple machine resembles an incline plane wrapping around a rod?

What type of simple machine is a sloping surface that allows an object to be raised without lifting it up?

What type of lever has the fulcrum on one end and the output on the other end?

What is a measure of how well a machine converts input work into output work?

What type of simple machine is a knife?

What type of simple machine is a ferris wheel?