5 Written Questions

1. When the light hits a wall, the wall stops, or absorbs, the light. Stopping light is absortion.
2. not letting light through; not clear or lucid; dense. An object reflects or absorbs all light.
3. 
   is a solid object that bends light
4. 
   The bouncing of light off an object
5. 
   Most ways of reducing noise involve absorbing sound or spreading out sound energy.

4 Multiple Choice Questions

1. 
   allowing light to pass through
   1. transparent
   2. noise
   3. translucent
   4. absortion
2. 
   the explosive sound heard when a shock wave reaches your ears or the double boom
   1. sonic boom
   2. prism
   3. echo
   4. noise
3. 
   the bending of light when it moves from one kind of matter to another
   1. echo
   2. absortion
   3. refraction
   4. reflection
4. 
   permitting light to pass through, but not transparent.
   1. opaque
   2. translucent
   3. prism
   4. transparent

4 True/False Questions

1. noise →
   is a solid object that bends light

   True        False

2. speed of sound →
   the speed at which a sound wave travels

   True        False

3. visible spectrum →
   The bouncing of light off an object

   True        False

4. echo →
   a reflected sound wave

   True        False