Work and Energy Flashcardziz
Flashcard
•
Physics
•
12th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is the energy an object possesses due to its motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.
2.
FLASHCARD QUESTION
Front
How do you calculate the velocity of an object given its kinetic energy?
Back
To find the velocity, rearrange the kinetic energy formula: v = sqrt(2KE/m).
3.
FLASHCARD QUESTION
Front
What is the relationship between mass and kinetic energy?
Back
Kinetic energy is directly proportional to the mass of the object; as mass increases, kinetic energy increases if velocity remains constant.
4.
FLASHCARD QUESTION
Front
What is the formula for gravitational potential energy?
Back
Gravitational potential energy (PE) is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.
5.
FLASHCARD QUESTION
Front
How do you determine the height from which an object falls using its final velocity?
Back
Use the formula h = v²/(2g), where v is the final velocity and g is the acceleration due to gravity.
6.
FLASHCARD QUESTION
Front
What is the work-energy principle?
Back
The work-energy principle states that the work done on an object is equal to the change in its kinetic energy.
7.
FLASHCARD QUESTION
Front
How is work defined in physics?
Back
Work is defined as the product of the force applied to an object and the distance over which that force is applied, W = Fd, where W is work, F is force, and d is distance.
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