Circular Motion Answers
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An object is represented by the dot on the motion map.
A
a satellite in orbit around a moonB
a child on a swing that just stoppedC
a ball twirled on a string that just brokeD
a car driving around a curve2
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Which motion maps show an object in uniform circular motion? Check all that apply.
A
VB
WC
XD
YE
Z3
Without inertia, how would an object that is experiencing a centripetal force behave?
A
It would move in a line away from the circle’s center.B
It would move in a line toward the circle’s center.C
It would move in a curved, circular path.D
It would move in a line tangent to the circular path.4
Lucia wants to change the motion map shown so that it shows uniform circular motion.
A
She should change the length of each vector that is tangent to the circle so that it is the same as the vector pointing toward the center at that point.B
She should change the direction of the vectors that are toward the center of the circle so that each points tangent to the circle opposite the existing tangent vectors.C
She should change the direction of the vectors that are toward the center of the circle so that each points away from the center of the circle.D
She should change the lengths of the vectors that point toward the center so that each is the same length.5
Johanna makes the table below to organize her notes about centripetal forces.Which type of force should she place in the cell marked X?
A
tensionB
gravityC
frictionD
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