Unit 4 Circular & Gravitation
Flashcard
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Physics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the acceleration of an object in uniform circular motion?
Back
The acceleration is directed toward the center of the circular path.
2.
FLASHCARD QUESTION
Front
What does it mean that every object in the universe attracts every other object?
Back
This statement reflects the law of universal gravitation, which states that all masses exert an attractive force on each other.
3.
FLASHCARD QUESTION
Front
In uniform circular motion, how does the direction of acceleration relate to the velocity vector?
Back
The direction of the acceleration is directed toward the center of the circular path, while the velocity vector is tangent to the circular path.
4.
FLASHCARD QUESTION
Front
What do red arrows typically represent in a diagram of circular motion?
Back
The red arrows represent the velocity vector of the object in motion.
5.
FLASHCARD QUESTION
Front
When a motorcycle drives in circles, how do the velocity and centripetal force vectors relate?
Back
The velocity and centripetal force vectors are perpendicular to each other.
6.
FLASHCARD QUESTION
Front
Define centripetal force.
Back
Centripetal force is the net force that acts on an object moving in a circular path, directed toward the center of the circle.
7.
FLASHCARD QUESTION
Front
What is gravitational force?
Back
Gravitational force is the attractive force between two masses, proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
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