Sound Reflection and Acoustics Quiz

What is it called when sound waves hit a surface and bounce back?

• Absorption

• Diffusion

• Reflection

• Refraction

What is an echo?

• A sound that travels faster than light

• A sound that is distorted

• A separate sound heard after a time gap

• A sound that is absorbed

What phenomenon occurs when sound reflects multiple times in an enclosed space?

• Reverberation

• Diffusion

• Refraction

• Absorption

Which of the following is an example of echo?

• Hearing footsteps in a tunnel

• Clapping in a large hall

• Shouting in a cave

• Thunder after lightning

What is the main purpose of acoustics in concert halls?

• To create noise

• To block sound

• To enhance sound quality

• To absorb sound

What is the effect of shouting in a canyon?

• The sound is absorbed

• The sound echoes back

• The sound is distorted

• The sound disappears

What is the role of sonar?

• To amplify sound

• To detect objects underwater

• To create echoes

• To absorb sound

What happens to sound waves in a large hall when you clap?

• They become louder

• They are absorbed completely

• They continue for a short time before fading

• They disappear immediately

What is the effect of reverberation ?

• It distorts the sound

• It makes the sound disappear

• It absorbs all sound

• It creates a warm, rich sound

What is the purpose of sound-absorbing materials in movie theaters?

• To enhance echoes

• To create noise

• To prevent echoes and improve clarity

• To amplify sound