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Systems Executing SHM (Pendulums) Video Lecture | Physics for JEE Main & Advanced

FAQs on Systems Executing SHM (Pendulums) Video Lecture - Physics for JEE Main & Advanced

1. What is SHM and how does it relate to pendulums?

Ans. SHM stands for Simple Harmonic Motion, which is a type of periodic motion where an object oscillates back and forth around a stable equilibrium position. Pendulums are a common example of objects that exhibit SHM, where a mass is suspended from a fixed point and swings back and forth in a regular pattern.

2. What factors affect the period of a pendulum's oscillation?

Ans. The period of a pendulum's oscillation, which is the time it takes for one complete cycle, is affected by two main factors: the length of the pendulum and the acceleration due to gravity. The longer the length of the pendulum, the longer the period, and the greater the acceleration due to gravity, the shorter the period.

3. How does the amplitude of a pendulum affect its motion?

Ans. The amplitude of a pendulum refers to the maximum displacement from its equilibrium position during oscillation. The amplitude does not affect the period of the pendulum, but it does affect the maximum velocity and maximum potential energy of the pendulum. A larger amplitude will result in a higher maximum velocity and potential energy.

4. Can the mass of the pendulum affect its period?

Ans. The mass of the pendulum does not affect its period. The period of a pendulum is solely determined by the length of the pendulum and the acceleration due to gravity. The mass of the pendulum only affects the magnitude of the forces involved, such as tension in the string or the weight of the mass, but not the period.

5. How does air resistance affect the motion of a pendulum?

Ans. Air resistance can have a small effect on the motion of a pendulum, particularly for larger amplitudes and higher velocities. Air resistance acts as a damping force, gradually reducing the amplitude of the pendulum's oscillation over time. However, for small oscillations and low velocities, the effect of air resistance is usually negligible.

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Sep 05, 2025 Last updated

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297 videos|953 docs|172 tests

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