What is energy?
Energy, Work, and Power

Flashcard
•
Science
•
12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Energy is the ability to do work.
2.
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.
3.
FLASHCARD QUESTION
Front
What is power?
Back
Power is the rate at which work is done or energy is transferred. It is calculated as Power = Work / Time.
4.
FLASHCARD QUESTION
Front
How is kinetic energy defined?
Back
Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.
5.
FLASHCARD QUESTION
Front
What is potential energy?
Back
Potential energy is the stored energy of an object due to its position or state, commonly gravitational potential energy, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.
6.
FLASHCARD QUESTION
Front
What is mechanical energy?
Back
Mechanical energy is the sum of potential energy and kinetic energy in a system.
7.
FLASHCARD QUESTION
Front
How does lifting an object relate to work?
Back
Lifting an object requires work because a force (gravity) is acting against the upward movement, and work is done when the object is moved against this force.
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