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Welcome!The Topic For Today Is…
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SoundReflection Absorption Volume and
IntensityCharacteristics of Sound
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Bonus Question: 5000 pts
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Topic 1: 200• Question: What is another word for the reflection of
sound?• Answer• Echo
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Topic 1: 400• Question: Sound reflects best off of what sorts of
materials?• Answer Hard Solids with packed particles
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Topic 1: 600• Question: What happens to sound when it hits a un-
smooth or jagged surface?• Answer It reflects at different angles
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Topic 1: 800• Question: In sound, the angle of reflection equals what• Answer Angle of Incident
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Topic 1: 1000• Question: What is reverberation?• Answer it is the prolonged sound due to the merging
of many echoes.
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Topic 2: 200• Question: What common characteristic do things that
absorb sound have?• Answer They all have holes to allow sound to bounce
around in an lose energy
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Topic 2: 400• Question: Why, when a storm is far away do you hear
only low rumbles?• Answer Because air absorbs high frequencies more
easily than low. By the time the thunder has reached you, all the high pitches are lost and only the low ones can be heard
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Topic 2: 600• Question: True or False Even air absorbs sound.• Answer True
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Topic 2: 800• Question: Name three items that could be in a
auditorium that would help absorb sound.• Answer Teacher decides
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Topic 2: 1000• Question: What happens to the sound that bounces
around in absorbent materials holes?• Answer They lose energy, the energy is transferred
into heat energy
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Topic 3: 200• Question: Define Volume• Answer describes how loud or soft a sound is
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Topic 3: 400• Question: How does intensity relate to volume• Answer intensity measures the amount of energy in a
sound wave. Higher intensity higher volume
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Topic 3: 600• Question: Describe at least two specific ways that people
can control sound• Answer PEOPLE CAN DIRECT SOUND, ABSORBING,
AND REFLECTING SOUND
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Topic 3: 800• Question: An office manager wants to reduce noise
pollution in an office. What kinds of floor and window coverings would be best to use?
• Answer Teacher decides
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Topic 3: 1000• Question: What does amplitude, volume, and intensity• Answer Teacher decides
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Topic 4: 200• Question: What is wavelength • Answer Distance from one crest to the next
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Topic 4: 400• Question: What are the three characteristics of sound?• Answer Wavelength, amplitude, frequency
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Topic 4: 600• Question: Which characteristic of sound effects pitch?• Answer Frequency
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Topic 4: 800• Question: Which characteristic effects the volume of
sound?• Answer Amplitude
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Topic 4: 1000• Question: If a sound has high amplitude and a low
frequency… what kind of sound is it?• Answer Loud/low sound
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Bonus Question: 5000 pts.
• Question: What property of sound is measured in
decibels?• Answer Decibel indicates loudness (volume, intensity)
of a sound.
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