AP Physics C: Circular Motion Flashcard
Flashcard
•
Physics
•
12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is centripetal force?
Back
Centripetal force is the net force acting on an object moving in a circular path, directed towards the center of the circle, which keeps the object in circular motion.
2.
FLASHCARD QUESTION
Front
How is centripetal force calculated?
Back
Centripetal force (F_c) can be calculated using the formula: F_c = (m * v^2) / r, where m is the mass, v is the speed, and r is the radius of the circular path.
3.
FLASHCARD QUESTION
Front
What happens to centripetal force if the speed of an object in circular motion is doubled?
Back
If the speed is doubled, the centripetal force increases by a factor of four, since F_c is proportional to the square of the speed (F_c ∝ v^2).
4.
FLASHCARD QUESTION
Front
What is the relationship between radius and centripetal force?
Back
Centripetal force is inversely proportional to the radius of the circular path. If the radius is increased while keeping speed constant, the centripetal force decreases.
5.
FLASHCARD QUESTION
Front
What is the difference between speed and velocity in circular motion?
Back
Speed is a scalar quantity representing how fast an object moves, while velocity is a vector quantity that includes both speed and direction. In circular motion, velocity is constantly changing due to the change in direction.
6.
FLASHCARD QUESTION
Front
What is uniform circular motion?
Back
Uniform circular motion refers to the motion of an object traveling at a constant speed along a circular path, where the direction of the velocity vector changes continuously.
7.
FLASHCARD QUESTION
Front
What is the role of tension in circular motion?
Back
Tension in a string or rope provides the centripetal force necessary to keep an object moving in a circular path, acting towards the center of the circle.
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