IMG_9986.jpeg

# Echolocation Sound is sent from a source, and then the location of the object is found based on the returning wave (the echo). * The amplitude of the wave determines the size of the object. * Distance = how long it takes for the wave to return — direction of the sound wave returns from is di...

# Echolocation Sound is sent from a source, and then the location of the object is found based on the returning wave (the echo). * The amplitude of the wave determines the size of the object. * Distance = how long it takes for the wave to return — direction of the sound wave returns from is direction of the object. ## Properties of a Sound Wave * Sound waves are longitudinal waves. * When pitch changes, the frequency of the wave is changing. * When volume changes, the amplitude of the wave is changing.