Waves - Waves July15,2009 Exploration:WavesonaSlinky...

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Waves July 15, 2009 Exploration: Waves on a Slinky Questions 1) When I stretch out the slinky more, the speed of the waves along the slinky moves faster. 2) The speed of the longitudinal waves is faster than the speed of the transverse waves. 3) If the frequency at which I move my hand is increased, the frequency of the wave  increases. 4) When I change the frequency at which I move my hand, the wavelength gets smaller. Exploration: Standing Waves on a Vertical Spring Questions 1) This is a longitudinal wave. 2) Diagram: Exploration: The Doppler Egg Questions 1) The pitch is higher when the buzzer is approaching me. 2) The Doppler effect is more noticeable at high speeds. 3) The pitch of the egg is highest when the egg is pointing toward me. The pitch of the egg  is lowest when the egg is pointing away from me because of the Doppler Effect. When a  sound source approaches a listener, the waves in front of the source are crowded together  so the listener receives more waves in a period of time and thus detects a higher pitch  than when there is no movement. When the sound source moves away from the listener,  the waves behind the source spread apart and the pitch is lower. This change in frequency  due to the relative motion between the source and the receiver is called the Doppler  Effect. Exploration: Tuning Fork Interference
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This note was uploaded on 08/30/2011 for the course PHYS 10 taught by Professor Vaughn during the Summer '09 term at West Valley.

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Waves - Waves July15,2009 Exploration:WavesonaSlinky...

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