What is the law of conservation of energy?
Conservation of Energy

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•
Science, Physics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another in a closed, isolated system.
2.
FLASHCARD QUESTION
Front
What is work in physics?
Back
Work is defined as the product of force and the distance over which it acts, and it is done when a force causes an object to move.
3.
FLASHCARD QUESTION
Front
How is power defined in physics?
Back
Power is the rate at which work is done or energy is transferred, calculated as work done divided by the time taken.
4.
FLASHCARD QUESTION
Front
What is the formula for calculating work?
Back
Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.
5.
FLASHCARD QUESTION
Front
What is the unit of work?
Back
The unit of work is the Joule (J), which is equivalent to one Newton meter (N·m).
6.
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 (J/s).
7.
FLASHCARD QUESTION
Front
How do you calculate power?
Back
Power (P) = Work (W) / Time (t).
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