Characteristics Of Sound Class 10th physics || Characteristics of sound Pashto Lecture

Sound has several key characteristics that define its properties and how it is perceived:

1. **Frequency**: The number of vibrations or cycles per second, measured in Hertz (Hz). It determines the pitch of the sound; higher frequencies are perceived as higher pitches.

2. **Amplitude**: The height of the sound wave, which determines its loudness or volume. Larger amplitudes produce louder sounds.

3. **Wavelength**: The distance between consecutive points of a wave, such as from peak to peak. It is inversely related to frequency; higher frequency sounds have shorter wavelengths.

4. **Velocity**: The speed at which sound travels through a medium, which depends on the medium's properties. For example, sound travels faster in water than in air.

5. **Phase**: The position of a point in time on a wave cycle. It is measured in degrees or radians and can affect how sound waves interact with each other.

6. **Timbre**: The quality or color of sound that distinguishes different types of sound production (e.g., musical instruments or voices) even if they have the same pitch and loudness. It is influenced by the sound wave's harmonic content and envelope.

7. **Duration**: The length of time a sound is heard. It contributes to the rhythm and timing in music and speech.

8. **Envelope**: The variation in amplitude over time, which includes the attack, decay, sustain, and release (ADSR) of a sound. It shapes the sound's intensity profile and affects its perception.

Understanding these characteristics helps in analyzing how sound is produced, transmitted, and perceived in various environments.