Directions: Shade TRUE if the statement is soundly correct and FALSE if the statement is not correct. 1. Sound is the energy things produce when they vibrate. 2. As the air moves, it carries energy in only one direction. 3. There are two different aspects to sound: the physical process and physiological process. 4. Sound can travel through solids, liquids, and gases and even in a vacuum. 5. Sound waves are examples of longitudinal waves.​