Practice Rotational Motion In Machines (2.7.1) - Angular Velocity and Angular Acceleration

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9 questions

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6 sample questions

Question 1.
What unit is angular velocity measured in?
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Think about the fundamental unit related to angles.
Question 2.
If a wheel completes one rotation, how many radians does it cover?
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Recall the relationship between rotations and radians.
3Question 3.
What is the unit of measurement for angular velocity?
- Radians per second
- Meters per second
- Degrees per minute
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Think of units related to angles.
4Question 4.
True or False: Angular acceleration can be negative.
- True
- False
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Consider what happens when objects decelerate.
Question 5.
A rotating flywheel has an angular velocity of 12 rad/s. If it takes 4 seconds to come to a complete stop, what is its angular acceleration?
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Consider that stopping is a negative change in velocity.
Question 6.
A disk starts at rest and accelerates at a rate of 2 rad/s². How long does it take to reach an angular velocity of 10 rad/s?
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Use the formula for angular acceleration to find time.

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