Question Characteristics of Sound by Alecia Strohl Sound is a form of energy made by vibrations. When something vibrates, it causes air particles to move and collide with other air particles. The movement is passed from one air particle to the next until it runs out of energy, creating a sound wave. If sound waves reach your ear, you hear sounds. Specific properties of sound, such as pitch and volume, can be affected by changing these vibrations. While sound can travel through solids, liquids, and gases, it travels best through the dense molecules of solids. To investigate how sound travels through solids, a simple telephone made of two cups connected by a wire can be used. When one person talks into one cup, the sound travels through the wire, allowing the person on the other end to hear what is being said. Changes made to the thickness, length, and tension of the wire will affect the pitch and volume of the sound traveling through it. Thicker wire will vibrate slower and have a lower pitch, while thinner wire will vibrate faster and creating a higher pitch. The speed the sound waves are traveling is called the frequency. The height of the sound waves, or the amplitude, determines how loud a sound is to the listener. These vibrations of energy is what makes sound. What is the MOST logical question that could be asked, based on the information in the first paragraph? Responses A How are microphones used to record music in studios?How are microphones used to record music in studios? B How can the pitch of a musical note played on a guitar be changed?How can the pitch of a musical note played on a guitar be changed? C How do sound-proof rooms keep sound from coming in?How do sound-proof rooms keep sound from coming in? D How does sound travel when no matter is present, like in space?How does sound travel when no matter is present, like in space?