Conservation of Mechanical Energy

Flashcard
•
Physics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of mechanical energy?
Back
Mechanical energy is the sum of potential energy and kinetic energy in a system.
2.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is the energy of motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.
3.
FLASHCARD QUESTION
Front
What is potential energy?
Back
Potential energy is the stored energy in an object due to its position or state, commonly calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.
4.
FLASHCARD QUESTION
Front
How do you calculate kinetic energy?
Back
Kinetic energy (KE) is calculated using the formula KE = 1/2 mv².
5.
FLASHCARD QUESTION
Front
How do you calculate potential energy?
Back
Potential energy (PE) is calculated using the formula PE = mgh.
6.
FLASHCARD QUESTION
Front
What happens to mechanical energy in a closed system?
Back
In a closed system, the total mechanical energy remains constant, as energy is conserved.
7.
FLASHCARD QUESTION
Front
What is the relationship between kinetic energy and velocity?
Back
Kinetic energy is proportional to the square of the velocity; if velocity doubles, kinetic energy increases by a factor of four.
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