Lesson 5: Circular Motion

Question 1

In which direction does centripetal force act on an object?

Revolt · Accepted Answer

toward the center of the circle in which the object is moving

Question 2

Which did you include in your response? Check all that apply.

Revolt · Accepted Answer

Centripetal force pulls an object toward the center of a circle.; Inertia is an object’s tendency to keep moving in a straight line.; Centripetal force causes an object to constantly change direction.; The combination of centripetal force and inertia causes an object to move in a circle.

Question 3

[___] N

Revolt · Accepted Answer

225

Question 4

Arrow [___] best represents the path the ball follows after the string breaks.

Revolt · Accepted Answer

B

Question 5

A 0.023 kg beetle is sitting on a record player 0.15 m from the center of the record. If it takes 0.070 N of force to keep the beetle moving in a circle on the record, what is the tangential speed of the beetle?

Revolt · Accepted Answer

0.68 m/s

Question 6

Which motion map represents an object moving in uniform circular motion with the greatest tangential speed?

Revolt · Accepted Answer

[Image: An illustration of a circle with four black dots o...]

Question 7

Which facts did you include in your response? Check all that apply.

Revolt · Accepted Answer

The books continued to move in a straight line due to inertia.; The car door exerted a force on the books.

Question 8

Question 96456

Revolt · Accepted Answer

96451

Question 9

An object is represented by the dot on a motion map. What is the best description for the motion of this object?

Revolt · Accepted Answer

The object is standing still.

Lesson 5: Circular Motion Answers

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