Physical Science Ch 21 Electromagnetic Energy Vocabulary

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Across
  1. 2. The region surrounding a magnet or current-containing wire that can apply a magnetic force on magnetic materials.
  2. 3. The energy of a wave is related to its ___________________.
  3. 6. The _______________ of the source determine the frequency of the wave.
  4. 10. Used in astronomy, medical imaging, and wireless devices.
  5. 13. Frequency and wavelength are _______________ proportional to each other.
  6. 16. An electromagnetic wave that is just beyond violet visible light.
  7. 17. Equal to the product of frequency and wavelength.
  8. 19. A wave in which the disruptions move perpendicular to the direction of wave travel.
  9. 20. The longest and lowest energy type of electromagnetic wave.
  10. 22. A high-energy photon that is emitted from a nucleus when a radioactive isotope experiences gamma decay.
  11. 23. A disruption in an electromagnetic field that carries energy, even through the vacuum of space.
  12. 24. The magnetic field waves oscillate ___________________.
Down
  1. 1. Electromagnetic waves that humans can see.
  2. 2. A wave from the upper end of the radio wave band.
  3. 4. A wave bundle, or particle, of electromagnetic energy.
  4. 5. The number of waves or cycles that occurs per second.
  5. 7. The distance between two identical points on successive waves.
  6. 8. A three-dimensional region around a charged object that will apply a force on other charged objects within that region.
  7. 9. Used for medical treatment, dentistry, and killing bacteria.
  8. 11. Used for navigation, and communication.
  9. 12. An electromagnetic wave that is just below red visible light.
  10. 14. Used for navigation, cooking, and communication.
  11. 15. The electric field waves oscillate ______________________.
  12. 18. The entire range of all electromagnetic waves.
  13. 21. A form of electromagnetic energy with wavelengths between 10 picometers (pm) and 10 nanometers (nm) that is used for medical imagery, transportation security, and nondestructive inspection.