Sound Waves

What do sound waves need to travel?

• A vacuum

• Electricity

• A medium

• Light

What is the Ruben's tube filled with?

• Sand

• Flammable gas

• Air

• Water

What happens to the flames in the Ruben's tube when sound waves pass through?

• They change color

• They become louder

• They disappear

• They form a wave pattern

How do sound waves reach the brain?

• Through light signals

• By being transformed into electrical impulses

• Through magnetic waves

• By traveling through the bloodstream

What part of the ear transforms sound waves into electrical impulses?

• Eardrum

• Cochlea

• Ear canal

• Outer ear