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- 1. Multiple Choice
What is happening to the ice skater?
Decreased Angular velocity, decreased rotational inertia
Decreased Angular velocity, increased rotational inertia
Increased Angular velocity, increased rotational inertia
Increased Angular velocity, decreased rotational inertia
- 2. Multiple Choice
How many radians make up one revolution of 360 degrees?
π/2
π
2π
3π/2
- 3. Multiple Choice
What does Rotational Inertia depend on?
Mass
Mass Distribution
Both Mass and its Distribution
Neither Mass nor its distribution
- 4. Multiple Choice
Does this woman have a high or low rotational inertia?
High
Low
- 5. Multiple Choice
Angular Momentum is the product of...
rotational inertia and linear velocity.
linear inertia and angular velocity.
linear momentum and angular velocity
rotational inertia and angular velocity.
- 6. Multiple Choice
Which of these objects has the most rotational inertia?
Left
Middle
Right
- 7. Multiple Choice
Which of these items is easier to turn?
Left
Right
Both are just as easy to turn
- 8. Multiple Choice
What happens to rotational inertia of an object when mass is moved close to axis of rotation?
Decreases
Increases
Stays the Same
- 9. Multiple Choice
Find the angular momentum for a 5 kg solid cylinder with a 20 cm radius rotating at 3 rad/s.
3000 kg-m2/sec
0,3 kg-m2/sec
0,6 kg-m2/sec
1.2 kg-m2/sec
- 10. Multiple Choice
A particle with 1 kg of mass, travels in a circular path of 0.5 m radius, giving 20 revolutions per second. Its angular momentum is ...
62.8 kg-m2/sec
31.4 kg-m2/sec
15.7 kg-m2/sec
- 11. Multiple Choice
CONSERVATION OF ANGULAR MOMENTUM. A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m. If it is rotating with an angular velocity of 3.14 rad/s, What is its angular velocity after a 22.0-kg child gets onto it by grabbing its outer edge? Consider it as a solid cylinder
3.14 rad/s
2.65 rad/s
2 rad/s
3.65 rad/s
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