Work and Power

Flashcard
•
Physics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is 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 Work = Force x Distance.
2.
FLASHCARD QUESTION
Front
What are the conditions required to do Work?
Back
1. A force must be exerted. 2. The object must move. 3. The object must move in the same direction as the force.
3.
FLASHCARD QUESTION
Front
Which of the following is NOT a condition to do work?
Back
The object must accelerate.
4.
FLASHCARD QUESTION
Front
What is Power in physics?
Back
Power is the rate at which work is done or energy is transferred, calculated as Power = Work / Time.
5.
FLASHCARD QUESTION
Front
How does time affect Work?
Back
Time does not affect the amount of work done; work is only dependent on force and distance.
6.
FLASHCARD QUESTION
Front
If you walk up stairs faster, what happens to the Work done?
Back
The amount of Work done remains the same regardless of the speed of ascent.
7.
FLASHCARD QUESTION
Front
What happens to Power if you carry a heavier backpack at the same speed?
Back
Power would increase because the work done against gravity increases with the added weight.
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