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Questions and Answers
What is work in the context of physics?
What is work in the context of physics?
- The energy transferred to or from an object via the application of force along a displacement (correct)
- The distance traveled by an object
- The force applied to an object
- The weight of an object
When does a force do positive work?
When does a force do positive work?
- When it has a component in the direction of the displacement of the point of application (correct)
- When it is applied horizontally
- When it has a component opposite to the direction of the displacement at the point of application
- When it is applied vertically
What mathematical operation gives the work done when both force and displacement are constant?
What mathematical operation gives the work done when both force and displacement are constant?
- The dot product of force and displacement vectors (correct)
- The multiplication of force and displacement magnitudes
- The cross product of force and displacement vectors
- The addition of force and displacement magnitudes
In what scenario does a force do negative work?
In what scenario does a force do negative work?
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How is the work done by a gravitational force when a ball is held above the ground and then dropped?
How is the work done by a gravitational force when a ball is held above the ground and then dropped?
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