Скачать или смотреть Forced Vibrations | Class 10 Physics | Chapter: Sound

In this Class 10 Physics video, we’ll explore Forced Vibrations, an important concept in the chapter on Sound. When the natural vibrations of a body die out due to damping, we can maintain them by applying an external periodic force. Such vibrations, produced under the influence of an external force, are called forced vibrations.
We’ll understand the role of the three forces acting on a vibrating body, see why the frequency of vibration matches the driving force, and learn how the amplitude depends on how close the driving frequency is to the natural frequency. A worked example will show how amplitude behaves when external and natural frequencies are different, and we’ll wrap up with a complete recap.
This lesson is fully aligned with the ICSE Class 10 Physics syllabus, giving you conceptual clarity and exam-ready insights with real-life analogies like swings, guitars, and loudspeakers.

What You’ll Learn in This Video:
Meaning and definition of forced vibrations.
The three forces involved: restoring force, resistive force, and external periodic force.
Why the frequency of vibration equals the frequency of the driving force.
How amplitude varies with external frequency.
Worked numerical example: amplitude behaviour near natural frequency.
Exam-ready recap of all key points.

Why Watch This Video:
Explains forced vibrations with everyday examples.
Includes both theory and worked example for clarity.
Connects to the upcoming concept of resonance.
Strengthens exam preparation with structured explanation.

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