Work & Energy Unit Review
Flashcard
•
Physics
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is work in physics?
Back
Work is defined as the product of force and displacement in the direction of the force. It is calculated using the formula: Work = Force x Distance.
2.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is the energy of an object due to its motion. It is calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.
3.
FLASHCARD QUESTION
Front
What is gravitational potential energy?
Back
Gravitational potential energy is the energy an object possesses due to its position in a gravitational field. It is calculated using the formula: PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.
4.
FLASHCARD QUESTION
Front
At which point does a pendulum have the greatest potential energy?
Back
At the highest point of its swing.
5.
FLASHCARD QUESTION
Front
At which point does a pendulum have the greatest kinetic energy?
Back
At the lowest point of its swing.
6.
FLASHCARD QUESTION
Front
What is the relationship between work and energy?
Back
Work done on an object results in a change in its energy. If work is done on an object, its energy increases.
7.
FLASHCARD QUESTION
Front
What happens to the energy of a pendulum as it swings?
Back
As a pendulum swings, its energy continuously transforms between kinetic and potential energy, but the total mechanical energy remains constant (ignoring air resistance).
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