
Physics Worksheet: Angular Momentum and Torque
Authored by Walter Izquierdo
Physics
12th Grade
Used 3+ times

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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In stable equilibrium, what happens when the system is rotated?
Center of gravity is lowered
No change in energy
System remains in motion
Center of gravity is raised
Answer explanation
In stable equilibrium, when the system is rotated, the center of gravity is raised. This occurs because the system moves to a higher potential energy state, indicating that it is less stable in that position.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is neutral equilibrium?
Mass is uniformly distributed
Center of gravity stays the same when rotated
Center of gravity is raised
System is unbalanced
Answer explanation
Neutral equilibrium occurs when the center of gravity remains unchanged during rotation, meaning the system is stable in any position. This is why the correct answer is 'Center of gravity stays the same when rotated'.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For vertical stability, where must the center of gravity be?
Next to the pivot
At the midpoint of the object
Below the base
Above the base of support
Answer explanation
For vertical stability, the center of gravity must be above the base of support. This positioning ensures that the object remains balanced and does not tip over, as the gravitational force acts downward through the center of gravity.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where does the center of gravity hang in a suspended system?
To the side of the support
At the top of the object
Above the base
Directly below the support
Answer explanation
In a suspended system, the center of gravity hangs directly below the support. This position ensures stability, as the weight is balanced directly beneath the point of suspension.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for angular momentum?
L = m v
L = I omega
L = F r
L = tau t
Answer explanation
The correct formula for angular momentum is L = I omega, where I is the moment of inertia and omega is the angular velocity. This formula describes how rotational motion is quantified, unlike the other options.
6.
DRAG AND DROP QUESTION
30 sec • 1 pt
Omega represents (a) in angular motion.
Answer explanation
In angular motion, omega (ω) represents angular velocity, which is the rate of change of angular displacement over time. It indicates how fast an object rotates around an axis, making 'Angular velocity' the correct choice.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is always conserved in the absence of external torque?
Force
Angular momentum
Center of gravity
Linear acceleration
Answer explanation
In the absence of external torque, angular momentum remains constant due to the conservation laws of physics. This means that the total angular momentum of a system does not change, making it the correct answer.
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