DIVE Integrated Chemistry and Physics Lesson 27
Sound, wave, compression, rarefraction, tone, pitch, frequency, infrasonic wave, ultrasonic wave, loudness, decibel (db), threshold of hearing, amplitude, acoustics, resonance, beats, Doppler effect, sonar, echolocation, ultrasound
Waves caused by vibrations that are transmitted through matter. If they are in the proper frequency, they can be perceived by the ear.
In a sound wave, it is a repeating area of compressed air, caused by a vibration.
The area of a sound wave where the air molecules are spread out, that alternates with compressions.
Tone is a word used to describe pitch.
The distance between the threads of a screw, that determine its mechanical advantage. 2) Related to frequency, it is how high or low our ears perceive a tone to be.
The number of cycles, or wavelengths, per second for waves.
Waves that have a lower frequency than the human ear can perceive.
Waves that have a higher frequency than the human ear can perceive.
How strong or weak a sound is perceived to be, based on its intensity.
Unit of measure used to express the intensity of sound.
threshold of hearing
The quietest sound that can be picked up by the ear.
The height, or depth, reached by an oscillating wave.
The study of sound, and how it is affected by objects of various shapes and materials.
Vibrations caused by matching the natural frequency of an object.
The destructive interference caused by two sound waves that have similar amplitudes, but slightly different frequencies.
The variation in pitch of a sound caused by motion.
Technology that uses sound waves and their reflections to locate objects.
Biological sonar found in animals such as bats.
High frequency sounds can be used in medical imaging devices.
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