Unit 4: Energy Review
Flashcard
•
Physics
•
9th Grade
•
Practice Problem
•
Hard
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1.
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, typically measured relative to a reference point.
2.
FLASHCARD QUESTION
Front
At what point does a thrown ball have the most gravitational potential energy?
Back
At the highest point of its trajectory.
3.
FLASHCARD QUESTION
Front
Where does kinetic energy equal potential energy for a falling object?
Back
Halfway down its fall.
4.
FLASHCARD QUESTION
Front
What is the SI unit for work?
Back
Joule (J), which is equal to one Newton-meter.
5.
FLASHCARD QUESTION
Front
What is the formula for calculating work?
Back
Work = Distance x Force.
6.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is the energy an object has due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.
7.
FLASHCARD QUESTION
Front
Give an example of an object with kinetic energy.
Back
A tennis ball rolling across the court.
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