Physical Science Module 15 Vocabulary

Edit Answers
12345678910111213141516171819202122
Across
  1. 2. Light traveling through a converging lens will always converge at a single point
  2. 5. The angle an incoming ray of light makes in relation to a line perpendicular to the surface of entry
  3. 10. The angle a reflected ray of light makes in relation to a line perpendicular to the surface of entry
  4. 11. Electromagnetic radiation with an even higher frequency (shorter wavelengths) than ultraviolet light, thus more destructive to living tissue; Used in medicine to see bones and other internal structures
  5. 12. All the electromagnetic waves in creation
  6. 16. Electromagnetic radiation with the highest frequency (shortest wavelengths); a form of radioactivity
  7. 17. Electromagnetic radiation with wavelengths slightly longer than infrared light (lower frequency); this radiation is found in microwave ovens
  8. 18. Transport light over greater distances because light entering them is only reflected internally and cannot escape
  9. 19. According to this theory, which was first introduced by Sir Isaac Newton, light comes in tiny packets
  10. 22. According to this theory, which was first introduced by physicist Christian Huygens, light is a wave
Down
  1. 1. Electromagnetic waves that human eyes can see
  2. 3. According to this theory, light is tiny packets of waves called photons
  3. 4. When both sides of a lens curve inward
  4. 6. Light has both wavelike characteristics and particle-like characteristics
  5. 7. When both sides of a lens curve outward
  6. 8. When light (or sound) waves bounce off an obstacle
  7. 9. A transverse wave composed of an oscillating electric field and a magnetic field that oscillates perpendicular to the electric field
  8. 13. The angle of reflection equals the angle of incidence
  9. 14. An oval-shaped lens that focuses light passing through at a single point
  10. 15. Electromagnetic radiation that has enough energy to kill living tissue; found next to violet light on the electromagnetic spectrum with a higher frequency (shorter wavelengths)
  11. 20. Electromagnetic radiation that has a frequency lower than red light (longer wavelengths); when a hot object gives off heat, most of the energy is in the form of infrared light
  12. 21. A lens shaped like a capital "I" that spreads the light traveling through it out in all directions