What is the name of the part of the ear that collects sound waves?

What is the name of the device used to convert sound waves into electrical signals?

The property of the sound waves that determines the pitch of the sound is its

What is the name of the phenomenon where a sound wave changes direction as it passes through a medium?

What is the phenomenon where sound waves bounce off a surface called?

What is the name of the phenomenon where two waves combine to form a single wave?