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Oscillations

Question 1
Physics C: Mechanics (2025)APConcept Practice
1 mark

A physical pendulum is released from rest at an angle θ\theta from the vertical. Neglecting friction, what principle can be used to find its maximum angular velocity?

Question 2
Physics C: Mechanics (2025)APConcept Practice
1 mark

A uniform rod of mass mm and length LL is pivoted at one end. If a small mass m2\frac{m}{2} is attached at the midpoint of the rod, how does this affect the period of the pendulum, assuming the moment of inertia of the rod about its end is 13mL2\frac{1}{3}mL^2?

Question 3
Physics C: Mechanics (2025)APConcept Practice
1 mark

A uniform rod of mass MM and length LL is pivoted at one end. If the moment of inertia about its center of mass is 112ML2\frac{1}{12}ML^2, what is its moment of inertia about the pivot point using the parallel axis theorem?

Question 4
Physics C: Mechanics (2025)APConcept Practice
1 mark

The angular frequency of a physical pendulum is given by ω=mgdI\omega = \sqrt{\frac{mgd}{I}}. How is the period TT related to this angular frequency ω\omega?

Question 5
Physics C: Mechanics (2025)APConcept Practice
1 mark

Under what condition does the motion of a physical pendulum approximate simple harmonic motion (SHM)?

Question 6
Physics C: Mechanics (2025)APConcept Practice
1 mark

Which of the following is a key difference between a simple pendulum and a physical pendulum?

Question 7
Physics C: Mechanics (2025)APConcept Practice
1 mark

In the formula for the period of a physical pendulum, T=2πImgdT = 2\pi \sqrt{\frac{I}{mgd}}, what does 'd' represent?

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Question 8
Physics C: Mechanics (2025)APConcept Practice
1 mark

A physical pendulum has a moment of inertia I=0.5 kgm2I = 0.5 \text{ kg} \cdot \text{m}^2, a mass m=0.25 kgm = 0.25 \text{ kg}, and the distance from the pivot to the center of mass is d=0.2 md = 0.2 \text{ m}. What is the period of the pendulum's oscillation?

Question 9
Physics C: Mechanics (2025)APConcept Practice
1 mark

A thin rod of length LL and mass MM is pivoted at a distance L/4L/4 from one end. What is the moment of inertia of the rod about this pivot point?

Question 10
Physics C: Mechanics (2025)APConcept Practice
1 mark

A physical pendulum with moment of inertia II is released from an initial angular displacement of θ0\theta_0. If its potential energy at the release point is UU, and its kinetic energy at the lowest point is KK, and the period is defined as T=2πImgdT = 2\pi \sqrt{\frac{I}{mgd}}, how can you relate these parameters to find the period?