What is Power?
Energy, Work, and Power Review

Flashcard
•
Physics
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Power is defined as the rate at which work is done or energy is transferred. It is calculated as Work done divided by time.
2.
FLASHCARD QUESTION
Front
How is Power calculated?
Back
Power (P) = Work (W) / Time (t) where Work is measured in Joules and Time in seconds.
3.
FLASHCARD QUESTION
Front
What is Work?
Back
Work is done when a force causes an object to move. It is calculated as Work = Force x Distance.
4.
FLASHCARD QUESTION
Front
How much work is done when lifting a 40 N crate 3 meters?
Back
120 J (Work = Force x Distance = 40 N x 3 m).
5.
FLASHCARD QUESTION
Front
What is Potential Energy?
Back
Potential Energy is the energy stored in an object due to its position or height. It is calculated as PE = mgh (mass x gravity x height).
6.
FLASHCARD QUESTION
Front
What is Kinetic Energy?
Back
Kinetic Energy is the energy of an object in motion, calculated as KE = 1/2 mv² (1/2 x mass x velocity squared).
7.
FLASHCARD QUESTION
Front
What is the relationship between Work and Energy?
Back
Work is a transfer of energy. When work is done on an object, energy is transferred to that object.
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