Work or Not Work
Flashcard
•
Physics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of work in physics?
Back
Work is done when a force causes an object to move in the direction of the force. It is calculated as the product of the force and the distance moved in that direction.
2.
FLASHCARD QUESTION
Front
Is carrying groceries into the house considered work?
Back
No, it is not considered work because the groceries are not being moved in the direction of the force applied (upward force against gravity).
3.
FLASHCARD QUESTION
Front
What is an example of work being done?
Back
Throwing a baseball a distance of 20 meters is an example of work being done because the ball is moved in the direction of the force applied.
4.
FLASHCARD QUESTION
Front
What is the formula for calculating work?
Back
Work = Force x Distance x cos(θ), where θ is the angle between the force and the direction of motion.
5.
FLASHCARD QUESTION
Front
When is work not done, even if a force is applied?
Back
Work is not done if there is no movement in the direction of the force, such as holding a heavy object still.
6.
FLASHCARD QUESTION
Front
What is the unit of measurement for work?
Back
The unit of measurement for work is the Joule (J).
7.
FLASHCARD QUESTION
Front
If a man pulls his boat out of the water, is this work?
Back
Yes, this is considered work because the boat is being moved in the direction of the force applied.
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