Sound Quiz

Part of the body that figures out what the sound is

• brain

• middle ear

• outer ear

• inner ear

Which object is the eardrum compared to

• funnel

• snail shell

• top of a drum

Part of the ear that sends signals to the brain

• inner ear

• three tiny bones

• outer ear

If the pitch is high, the source of the sound is

• an echo

• nearby

• vibrating quickly

Which shows how soundwaves travel

• a branch swaying

• a marble dropped in water causing ripples

• car speeding up and down hills

The brain interprets signals from

• eardrums

• three bones in the middle ear

• tiny hairs that affect nerve cells

Sound waves travel fastest through

• water

• granite

• air

Which surface will make the best echo?

• rough and uneven

• rough and soft

• smooth and hard

How do you change the pitch of a guitar

• remove six of the strings

• move the guitar closer to your ear

• replacing strings with thinner ones

If a sound is loud, that means the amplitude is

• high

• low

• medium