Reflection of Sound

What are the laws of reflection of sound?

• The incident ray, the reflective ray and the normal at the point of incidence lay on the same plane

• The incident ray, the reflective ray and the normal lay may or may not on the same plane

• Angle of reflection >Angle of incidence

• Angle of reflection =Angle of incidence

How fast does sound travel in the air?

• 345m/s

• 332m/s

• 334m/s

• 340m/s

loudness is measured in ________

An echo occurs when a sound wave is_________.

• Transmitted

• Absorbed

• Reflected

• Refracted

When sound is louder what measurement gets bigger?

• Amplitude

• Crest

• Wavelength

• Frequency

Give definition for echo

• A term used to describe environmentally friendly actions

• A repetition of sound caused by reflection of sound waves

Which of the following activities explain the reflection of light?

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