What is Mechanical Energy (ME)?
Mechanical Energy

Flashcard
•
Physics
•
8th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Mechanical Energy is the sum of kinetic energy (KE) and gravitational potential energy (GPE) in a system.
2.
FLASHCARD QUESTION
Front
What is Kinetic Energy (KE)?
Back
Kinetic Energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.
3.
FLASHCARD QUESTION
Front
What is Gravitational Potential Energy (GPE)?
Back
Gravitational Potential Energy is the energy an object possesses due to its position in a gravitational field, calculated as GPE = mgh, where m is mass, g is acceleration due to gravity, and h is height.
4.
FLASHCARD QUESTION
Front
At what point is Kinetic Energy (KE) zero?
Back
Kinetic Energy (KE) is zero when the object is at rest, meaning its speed is 0 m/s.
5.
FLASHCARD QUESTION
Front
How do you calculate Mechanical Energy (ME)?
Back
Mechanical Energy (ME) is calculated by adding Kinetic Energy (KE) and Gravitational Potential Energy (GPE): ME = KE + GPE.
6.
FLASHCARD QUESTION
Front
What happens to Mechanical Energy (ME) in a closed system?
Back
In a closed system, Mechanical Energy (ME) is conserved; it remains constant if only conservative forces are acting.
7.
FLASHCARD QUESTION
Front
What is the relationship between speed and Kinetic Energy (KE)?
Back
Kinetic Energy (KE) increases with the square of the speed; if speed doubles, KE increases by a factor of four.
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