What is sound?

What type of waves are sound waves?

What is a sound wave?

What dose sound wave rely on?

what is and transverse wave?

what is an Longitudinal wave?

why dose sound move faster in warmer air?

what is an echo?

what happens if there are soft objects and or surfaces around when trying to make an echo?

what dose pitch depend on?

what is frequency measured with?

what do louder sound have?

what is the normal audible frequency for humans?

what are ultrasounds?

what are ultrasounds used for?

what is infrasound?

how dose your ear hear?

what are some hearing disabilities?

what are some ways to block loud noises out?

why is sound needed?