### Waves & Sound Unit

Guttinger

Waves and Sound Unit Vocabulary

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Across
3.Finding objects with sound waves to determine how far away they are.
7.The measure of a wave from the restline to the crest or the trough of a wave.
9.20 Hz - 20,000 Hz
12.Frequency below 20Hz.
15.Finding objects with reflected waves.
19.Top of a wave.
20.Tendency of one object to force another interconnected adjoining object into vibrational motion.
24.The canceling interference that occurs when two waves occupy the same space at the same time.
25.Frequency above 20,000 Hz.
26.High pressure region of a sound wave.
27.Largest amplitude
Down
1.Amplitude of a sound wave (measured in decibles).
2.Frequency of a sound wave.
4.Wave bends when it bounces off a surface.
5.When a wave bends because of a change in medium.
6.A noise heard as a loud boom at ground level resulting from shock waves created by an aircraft flying above the speed of sound.
8.When a wave bends around a corner.
10.The frequency at which an object tends to vibrate naturally.
11.Part of a wave where the amplitude is zero.
13.How easily a material returns to its original state.
14.Two frequencies that are not identical.
16.Low pressure regions of a sound wave.
17.The enhancing interference that occurs when two waves occupy the same space at the same time.
18.Used for medical diagnosis.
21.Bottom of a wave.
22.What creates a sound wave (moving of matter back and forth).
23.Any wave or pendulum where force is added at regular intervals.

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