Propagation of Sound

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Jnana Prabodhini Educational Resource Center

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1. Define Work 2. Express work in proper units 3. Calculate work done in simple case 4. Define Kinetic Energy 5. Express kinetic Energy in proper units 6. Solve Simple problems based on Kinetic Energy 7. Define Potential Energy 8. Define Gravitational Potential Energy 9. Solve Simple problems based on Gravitational Potential Energy 9. Describe Energy Transformation in daily life 10. Define Power 11. Distinguish between Energy and Power

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Sound is produced when a matter vibrates. Sounds consists waves and these waves travel as a longitudinal waves. Sound travels fastest in solids because the particles are closer. The speed of sound depends on the temperature of matter. The higher the temperature, the higher the speed of sound is. The properties of sound are reflection and refraction. In reflection, the sound wave turns back when it hits a barrier. A good example of this are echoes and reverberations. On the other hand, refraction is the bending of sound waves.

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