Physics and Astronomy Crossword

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Across
  1. 3. The effect that causes electrons to be released when photons hit a metal
  2. 8. The amount of energy or light reaching a detector every second
  3. 9. The angle between a celestial object and the meridian
  4. 10. Rate of flow of electric charge
  5. 13. Separating light waves by wave orientation
  6. 15. Subatomic particle with a negative charge
  7. 17. The measure of charge
  8. 19. The SI unit of force
  9. 20. The angular distance of an object north or south of the celestial equator
  10. 23. Mass in motion
  11. 24. An angular measurement equal to 1/3600 of a degree
  12. 25. Mass per unit volume
  13. 27. Geographical coordinate north or south of equator
Down
  1. 1. Fundamental unit of light
  2. 2. When opposite the Sun, a planet is in this
  3. 4. The special version of this relates physics and sets the speed of light for all inertial reference frames
  4. 5. The shift in apparent position of an object
  5. 6. The number of waves passing through a point in a given time interval
  6. 7. A constant longitude passing through the earth's poles and surface
  7. 11. Elevation of an object above the horizon
  8. 12. The equivalent of force for a rotation about an axis
  9. 14. Form of angular momentum carried by particles
  10. 16. This type of motion occurs when all particles of a rigid body move parallel to a fixed plane
  11. 18. A force acting on a body in a circular path
  12. 21. The scattering of photons by a charge particle resulting in a decrease in photon energy
  13. 22. A tendency to resist a change in motion
  14. 26. Subatomic particle
  15. 27. Local Sidereal Time