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Light and Sound

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  • When a flashlight is aimed at a mirror or other smooth and shiny object, what happens to the light after if first hits the mirror?
    It bounces off at the same angle that it hit the mirror.
  • What is it called when a sound bounces off of an object and you can hear it over and over?
    An echo.
  • What is the height of a sound wave from the midway point to the top of the wave crest that determines how loud a sound is called?
    amplitude
  • A guitar string makes a higher pitches sound when you tighten the string. Why?
    Tightening the string makes it vibrate faster.
  • Do sound waves closer together have a higher or lower pitch?
    Higher
  • When you hold up a prism to a light source, what happens to the light when it passes through and leaves out the other side of the prism?
    It bends after it enters the prism and separates into the colors that make up white light.
  • Sound waves travel through...
    solids, liquids, and gasses.
  • What kind of object does not allow any light to pass through it so that you cannot see through it?
    Opaque
  • Do shorter sound waves, or waves with a lower amplitude, have a higher or lower volume?
    Lower
  • What is a measure of how high or how low a sound is?
    pitch
  • What solid and transparent object separates white light into different colors?
    A prism.
  • What type of lens is oval shaped, thicker in the middle, and can help magnify?
    convex
  • What makes a sound?
    Vibrations in the air.
  • What kind of object allows some light to pass through it and allows you to see a blurry or not so clear view of what is on the other side of it?
    Translucent
  • If you filled a glass with water and struck it with a metal spoon, how could you change the pitch?
    If you add more water, the higher the pitch will be. If you take out water, the lower the pitch will be.
  • Refraction occurs when...
    light bends.
  • Reflection occurs when...
    light strikes a surface and bounces off.
  • What type of lens curves inward and causes light to spread out?
    Concave
  • What type of communication would not work for astronauts on the moon?
    Making sounds
  • What kind of object allows all light to pass through it, and you can see through it?
    Transparent
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