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Published byJeffry Carson Modified over 9 years ago
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T Waves and Sound Jeopardy
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T Today’s topics are….
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T Basics
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T Sound Off
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T Encounters
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T Resonate Me…
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T Wildcard
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$100 $200 $300 $400 $500 BasicsSound OffEncounters Resonate Me… Wildcard FJ
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T This is the source of all wave motion…
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T What is a vibration?
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T This is defined as the distance between successive points on a wave.
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T What is wavelength?
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T This is why breaking a brick over your head is safer than bouncing the brick off your head. T This is the time needed for a wave to complete one full cycle.
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T What is period?
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T This is the region on a longitudinal wave that corresponds to a trough on a transverse wave.
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T What is a rarefaction?
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T Quadrupling the distance from a source of sound will do this to the intensity. T This is why breaking a brick over your head is safer than bouncing the brick off your head. T The wave below was produced when a girl sings for 0.04 seconds. Assuming the speed of sound is 320 m/s, this is the wave’s frequency and wavelength.
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T What is frequency = 300 Hz and wavelength = 1.07 m?
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T Sound is this type of mechanical wave.
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T What is a longitudinal wave?
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T This is the greatest determining factor for the speed of sound in a medium.
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T What is the elasticity of the medium?
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T This is roughly how many times faster than the speed of sound the plane below is traveling.
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T What five times?
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T A singer produces a sound wave that has a distance of 6.4 meters between successive crests. If it takes 0.02 seconds for a full wave to pass a listener in the audience, this is the wave’s frequency and velocity. T This is the direction the source of sound is moving during the Doppler Shift.
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T What is to the right?
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T A singer produces a sound wave that has a distance of 6.4 meters between successive crests. If it takes 0.02 seconds for a full wave to pass a listener in the audience, this is the wave’s frequency and velocity.
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T What is frequency = 50 Hz and velocity = 320 m/s?
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T This is the type of collision that one or more bodies are deformed and heat is lost. T This is what will happen when the two waves below meet.
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T What is destructive interference?
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T This what bats use to find food.
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T What is ultrasonic radar (sonar, echo, reflection)?
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T This is the type of interference the creates a standing waves
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T What are both constructive and destructive interference.
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T Daily Double!
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T A 1134-Hz tuning fork is sounded at the same time a piano note is struck. You hear three beats per second. This is the frequency of the piano string.
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T What is 1131 Hz or 1137 Hz??
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T This is the number of full waves, nodes and antinodes tin the following standing wave.
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T What is 2 waves, 5 nodes and 4 antinodes?
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T This is what forcing a body to vibrate at its own natural frequency is called.
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T What is resonance?
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T This bridge collapsed in large part due to resonance.
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T What is the Tacoma Narrows Bridge?
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T This is the work needed and power exerted by 500 kg Stay Puff Marshmallow Man to climb a 200m high building in 10 seconds. Assume g =10 m/s 2 T This type of resonance tube has an antinode on either end when it is resonating.
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T What is W = 1.0 x10 6 J and P = 1.0 x 10 5 W? T What is an open tube?
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T This is a sketch of an open tube experiencing its 3rd level of resonance.
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T What is 340 Hz? T What is L = 3/2 f = v/(2/3L) = 3f 1
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T A 15 centimeter closed tube resonates at 480 Hz. This will be the next tube length that will resonate with the same 480 Hz. T This is the work needed and power exerted by 500 kg Stay Puff Marshmallow Man to climb a 200m high building in 10 seconds. Assume g =10 m/s 2 T This is the level of resonance for this resonating closed tube.
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T What is the 3rd level of resonance?
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T This is the number of antinodes shown in the following standing wave.
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T What is 2?
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T This is how increasing frequency and the amplitude of a sound wave will effect what a listener will hear.
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T What is: Increasing frequency means a higher pitch and increasing amplitude means a louder sound?
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T This type of mechanical wave vibrates the material is passes through perpendicular to the direction the waves is traveling in.
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T What is a transverse wave?
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T This type of interference occurs when the crests of two waves encounter one another.
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T What is constructive interference?
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T This observer hears the louder sound.
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T What is the both do?
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T Final Jeopardy
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T Some of a wave's energy is always being dissipated as heat. In time, this will reduce the wave's…
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T What is amplitude?
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