What two factors make up the angular momentum of a rotating object?
Rotational Inertia

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Physics
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9th - 12th Grade
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Friction and gravity
Radius and diameter
Mass and linear velocity
Rotational inertia and angular velocity
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is angular momentum conserved when the position of objects changes?
By reducing friction
By increasing mass
By changing velocity
By altering shape
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for calculating rotational inertia of a record with mass concentrated at the center?
I = mr^2
I = 2mr^2
I = mr
I = 1/2 mr^2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does moving mass to the outside of a record affect its rotational inertia?
It has no effect
It reduces the angular velocity
It doubles the rotational inertia
It halves the rotational inertia
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the angular velocity of a flywheel when its rotational inertia increases?
It decreases
It becomes zero
It remains constant
It increases
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect on Earth's year if its rotational inertia is reduced by moving it closer to the sun?
The year would be longer
The year would be shorter
The year would remain the same
The year would be unpredictable
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the distance of a satellite from Earth affect its orbital period?
It depends on the satellite's mass
Closer satellites have longer periods
Distance has no effect
Closer satellites have shorter periods
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