What is sound energy?

What does kinetic energy transferred into?

What are some examples of objects that vibrate?

What is an echo?

What is pitch?

What is frequency?

What is frequency measured with?

What is wavelength?

What is loudness measured with?

Scale of loudness.

What is wave motion?

What is acoustics?

What is the speed of sound in water?

Why can’t sound travel in space?