Work and Power
Flashcard
•
Physics
•
11th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the definition of Work in physics?
Back
Work is defined as the product of the force applied to an object and the distance over which that force is applied, in the direction of the force. It is calculated using the formula: Work = Force × Distance.
2.
FLASHCARD QUESTION
Front
What is the formula for calculating Power?
Back
Power is defined as the rate at which work is done. It is calculated using the formula: Power = Work / Time.
3.
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.
4.
FLASHCARD QUESTION
Front
What is the unit of Power?
Back
The unit of Power is the Watt (W), which is defined as one joule per second.
5.
FLASHCARD QUESTION
Front
If a force of 50 N moves an object 4 meters, how much work is done?
Back
Work = Force × Distance = 50 N × 4 m = 200 J.
6.
FLASHCARD QUESTION
Front
What is the relationship between Work and Power?
Back
Power is the rate at which work is done. If more work is done in a shorter amount of time, the power is greater.
7.
FLASHCARD QUESTION
Front
What happens to the work done if the force is doubled while the distance remains the same?
Back
If the force is doubled, the work done also doubles, since Work = Force × Distance.
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