Reflection of Sound

What are the Laws of Reflection of Sound?

• Angle of Reflection = Angle of Incidence

• The incident wave, the reflected wave, and the normal at the point of incidence may or may not lie on the same plane.

• Angle of Reflection > Angle of Incidence

• The incident wave, the reflected wave, and the normal at the point of incidence lie on the same plane.

Give definition for eco

• A term used to describe environmentally friendly actions
• The repetition of a sound caused by the reflection of sound waves.

Which of the following activities explain the reflection of light?

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2. An echo occurs when a sound wave is __________.

• A. absorbed

• B. reflected

• C. refracted

• D. transmitted

5. How fast does sound travel in the air ?

• A. 334 m/s

• B. 340 m/s

• C. 332 m/s

• D. 345 m/s

Loudness is measured in ________

When a sound is louder what measurement gets bigger?

• Frequency 
• Amplitude 
• Wavelength 
• Crest