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Physical Science: 7

Physical Science Lesson 7: Sound

Sound: A form of energy produced by vibrating objects
Sound Wave A wave that transmits sound
Vibrate: Move back and forth rapidly
Frequency The rate at which a vibration occurs that constitutes a sound wave
Sonar A technique that uses sound waves to navigate and locate items under water
Decibels The unit used to measure the intensity of a sound The degree of loudness
Pitch The degree of highness or lowness of a tone
Echo A sound caused by the reflection of sound waves from a surface
Doppler The apparent change in frequency and wavelength of a wave, such as a sound wave
Created by: twaller