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Welcome! The Topic For Today Is…

Welcome! The Topic For Today Is…. Sound. Topic 1: 200. Question: What is another word for the reflection of sound? Answer Echo. Back. Topic 1: 400. Question: Sound reflects best off of what sorts of materials? Answer Hard Solids with packed particles. Back. Topic 1: 600.

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Welcome! The Topic For Today Is…

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  1. Welcome! The Topic For Today Is…

  2. Sound

  3. Topic 1: 200 • Question: What is another word for the reflection of sound? • Answer • Echo Back

  4. Topic 1: 400 • Question: Sound reflects best off of what sorts of materials? • Answer Hard Solids with packed particles Back

  5. Topic 1: 600 • Question: What happens to sound when it hits a un-smooth or jagged surface? • Answer It reflects at different angles Back

  6. Topic 1: 800 • Question: In sound, the angle of reflection equals what • Answer Angle of Incident Back

  7. Topic 1: 1000 • Question: What is reverberation? • Answer it is the prolonged sound due to the merging of many echoes. Back

  8. 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 Back

  9. 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 Back

  10. Topic 2: 600 • Question: True or False Even air absorbs sound. • Answer True Back

  11. Topic 2: 800 • Question: Name three items that could be in a auditorium that would help absorb sound. • Answer Teacher decides Back

  12. 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 Back

  13. Topic 3: 200 • Question: Define Volume • Answer describes how loud or soft a sound is Back

  14. 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 Back

  15. Topic 3: 600 • Question: Describe at least two specific ways that people can control sound • Answer PEOPLE CAN DIRECT SOUND, ABSORBING, AND REFLECTING SOUND Back

  16. 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 Back

  17. Topic 3: 1000 • Question: What does amplitude, volume, and intensity • Answer Teacher decides Back

  18. Topic 4: 200 • Question: What is wavelength • Answer Distance from one crest to the next Back

  19. Topic 4: 400 • Question: What are the three characteristics of sound? • Answer Wavelength, amplitude, frequency Back

  20. Topic 4: 600 • Question: Which characteristic of sound effects pitch? • Answer Frequency Back

  21. Topic 4: 800 • Question: Which characteristic effects the volume of sound? • Answer Amplitude Back

  22. Topic 4: 1000 • Question: If a sound has high amplitude and a low frequency… what kind of sound is it? • Answer Loud/low sound Back

  23. Bonus Question: 5000 pts. • Question: What property of sound is measured in decibels? • Answer Decibel indicates loudness (volume, intensity) of a sound. Back

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