SOUND WAVES & HEARING

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Across
  1. 3. the number of wavelengths that pass by a point each second
  2. 6. causes particles in matter to move back and forth along the same direction in which the waves travel
  3. 7. the angle that the incoming wave makes the normal equals the angle that the outgoing wave makes with the normal
  4. 9. causes particles in matter to move back and forth at right angles to the direction in which the waves travel
  5. 10. a substance that a wave travels through
Down
  1. 1. the change in direction of a wave when it changes speed as it travels from one material to another
  2. 2. a disturbance that moves through matter or space.
  3. 4. WAVE a wave that has to travel through a medium
  4. 5. contain electric and magnetic parts that vibrate up and down perpendicular to the direction the wave travels
  5. 8. the distance between one point on a wave and the nearest point moving with the same speed and direction