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Question
identify two properties of an applied force that a machine can change in order to make a task easier.
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Machines are used to modify applied forces to simplify tasks. One key property is the magnitude (or size) of the force—machines like levers can reduce the input force needed by increasing the distance over which it acts. Another property is the direction of the force—for example, a pulley changes the direction of a pulling force (e.g., lifting a weight by pulling down instead of up), making the task more convenient.
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- Magnitude (or Size) of the force
- Direction of the force