What is the formula to calculate work?
Work and Power

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Physics
•
10th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.
2.
FLASHCARD QUESTION
Front
What is the definition of power in physics?
Back
Power is the rate at which work is done or energy is transferred over time.
3.
FLASHCARD QUESTION
Front
What is the unit of power?
Back
The unit of power is the Watt (W), which is equivalent to one Joule per second.
4.
FLASHCARD QUESTION
Front
If 1,000 J of work is done in 10 seconds, what is the power output?
Back
Power = Work / Time = 1,000 J / 10 s = 100 W.
5.
FLASHCARD QUESTION
Front
What is the relationship between work and energy?
Back
Work done on an object results in a change in energy of that object.
6.
FLASHCARD QUESTION
Front
What is the unit of work?
Back
The unit of work is the Joule (J), which is defined as the work done when a force of one Newton displaces an object by one meter.
7.
FLASHCARD QUESTION
Front
What is an example of work being done?
Back
Lifting a box is an example of work being done because a force is applied to move the box over a distance.
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