Mechanical Waves Mechanical Wave

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Ex: A submarine uses SONAR to measure the distance to the bottom of the ocean. If an ultrasound signal is sent and it takes 7 seconds to receive the echo, how far away is the bottom of the ocean (speed of sound in water = 1546 m/s) speed = distance x time 1546 m/s = (d)(7 s.) d = 271 m. / 2 (because its an echo) so: d = 136 m. to the bottom 24
Doppler Effect --> a change in sound frequency caused by motion of the sound source, motion of the listener, or both. As a source of sound approaches, an observer hears a higher frequency. When the sound moves away, the observer hears a lower freqency. Observer B will hear a higher pitch because the waves are bunched together while Observer A will have a lower pitch because the waves are spread apart. 25
Page 1 and 2: CH 17 - MECHANICAL WAVES & SOUND Se
Page 3: 2) LONGITUDINAL WAVE- a wave in whi
Page 6 and 7: Sec. 17.2 - PROPERTIES OF MECHANICA
Page 8 and 9: Amplitude - maximum displacement of
Page 10 and 11: Try these: 1) The waves in a pool h
Page 12 and 13: Sec. 17.3 - BEHAVIOR OF WAVES 1) RE
Page 14 and 15: 3) DIFFRACTION - Bending of a wave
Page 16: Chromatic interference is seen in s
Page 19 and 20: v ANTINODE - point on standing wave
Page 21 and 22: Sec. 17.4 - Sound & Hearing Sounds
Page 23: 3) Loudness --> physical response t
Page 28 and 29: How human hearing works: 1) The pin
Page 30 and 31: Large-diameter speakers are better

Mechanical Waves Mechanical Wave

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