Scientific+Terms+About+Sound

Sound Vocabulary List **Amplifier:** A device that makes an electrical signal stronger **Cochlea:** The spiral tube of the inner ear containing many nerve endings; **Compression:** Squeezing together to make smaller; **Concave:** Curved like the inner surface of a sphere; **Contract:** To shrink and become smaller; **Convex:** Curved like the outer surface of a sphere; **Doppler effect:** The effect on the pitch of a sound caused by the source and listener moving in relation to one another; **Eardrum** A thin membrane that separates the external ear from the middle ear; **Echo:** Repetition of a sound by reflection of sound waves from a surface; **Frequency:** The number of times an action occurs in a given time; **Loudspeaker:** A device that converts electric signals to sound and projects it; **Mach 1:** The speed of sound; **Music:** A pleasing or harmonious sound or combination of sounds; **Noise:** An unpleasant sound or combination of sounds; **Pitch:** The lowness or highness of a sound; <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 120%; text-align: left;">**Refraction:** The turning or bending of a wave as it passes from one medium to another of different density; <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 120%; text-align: left;">**Sonar:** An apparatus that uses reflected sound waves to detect underwater objects; <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 120%; text-align: left;">**Timbre:** The quality of a sound; <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 120%; text-align: left;">**Ultrasound:** Sound whose pitch is higher than that of sounds within the normal range of hearing; <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 120%; text-align: left;">**Vacuum:** The absence of matter; <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 120%; text-align: left;">**Vibration:** A to and fro movement; <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 120%; text-align: left;">**Volume:** The loudness of a sound; <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 120%; text-align: left;">**Wave:** A disturbance traveling through a substance;

[|Properties of Sound--Vocabulary Flashcards] [|Sound Vocabulary Powerpoint]