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Heat, Light and Sound - Turn it Down!


The diagram above shows the QuickTime sound above it.

Look closely at the diagram as you listen to the music. Answer the following questions after you have listened closely (you may need to play the sound more than once.) The center line is what you would see if there was no sound at all. The up and down movement in the diagram represent the volume of the music.

  1. At what point is the music the softest? How would you describe the diagram at that point?
  2. At what point is the music the loudest? What is the diagram like at that point?

For the questions that follow, you need to carefully move your mouse until it rests on the link that you choose. Do NOT click any link.

Look closely at the labeled diagram above.

  1. Which letter shows the most energy used to create the loudest sound vibrations?
    A    B    C    D
  1. What letter represents the least energy used to create the softest sound vibrations?
    A    B    C    D
  1. Do large vibrations cause a louder or softer sound?
  2. Do small vibrations cause a louder or softer sound?
utah state board of education This Sci-ber Text was developed by the Utah State Board of Education and Utah educators.