What is Work?
Work , Power, and Energy

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Physics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Work is done when a force causes an object to move in the direction of the force. It is calculated as W = Fd, where W is work, F is force, and d is distance.
2.
FLASHCARD QUESTION
Front
What is the formula for calculating Power?
Back
Power is calculated as P = W/t, where P is power, W is work done, and t is the time taken.
3.
FLASHCARD QUESTION
Front
What is the unit of Work?
Back
The unit of work is the Joule (J). One Joule is defined as the work done when a force of one newton displaces an object by one meter.
4.
FLASHCARD QUESTION
Front
What is the unit of Power?
Back
The unit of power is the Watt (W). One Watt is equal to one Joule per second.
5.
FLASHCARD QUESTION
Front
What is the relationship between Work, Power, and Time?
Back
Power is the rate at which work is done. If the same amount of work is done in less time, the power output is greater.
6.
FLASHCARD QUESTION
Front
Which of the following is an example of work being done?
Back
Lifting a box is an example of work being done because it involves moving an object against gravity.
7.
FLASHCARD QUESTION
Front
If a person does 9000 J of work in 10 seconds, what is their power output?
Back
The power output is 900 watts, calculated using P = W/t.
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