General Knowledge Questions and Answers - 6805
Questions and Answers
General Knowledge
Question:
When a lacrosse stick acts as a lever, does it convert a big force to a small one or vice versa?
Answer:
The lacrosse stick converts a big force into a small one. As you flip the stick, you do work on it—you push part of it forward while that part moves forward. You use a large force and the place on which you push moves forward a small distance. The stick, in turn, does work on the ball. It exerts a small force on the ball but moves that ball through a large distance. The products of force times distance are essentially equal (the stick itself takes some of the energy). The result is a very fast moving lacrosse ball that sails across the field.
Question:
What are windmills used for?

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