Machine

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

Real World Example

Imagine trying to open a tightly sealed jar of pickles. Just like how you might use a rubber grip or a towel to make it easier to twist open the jar, a machine like a lever or a pulley helps make work easier by changing the size or direction of the force you apply. In both cases, the tool (rubber grip/towel or machine) reduces the effort needed to accomplish the task by either increasing your grip or changing the force direction, showing how machines simplify tasks by amplifying human effort.

Practice Version

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