8th Grade Science Review

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Across
  1. 4. the rate of change in an object's velocity
  2. 5. a(n) __________ unit is equal to the average distance between the earth and the sun
  3. 7. the tendency of an object to resist a change in motion
  4. 10. type of signal sent with 1's and 0's
  5. 14. this type of eclipse happens when the moon blocks light traveling to the Earth.
  6. 15. large object orbiting around a star
  7. 17. a light year measures _________, not time
  8. 18. a disturbance that carries energy
  9. 20. the distance an object travels in a given time
  10. 21. when sunlight traveling to an object is blocked by another body (like Earth)
  11. 22. a push or a pull in a given direction
Down
  1. 1. term for light being bent as it travels through a different medium
  2. 2. to send a signal
  3. 3. an attractive force that tends to pull objects together
  4. 5. a "copy" of a wave or signal(continuously variable)
  5. 6. when radiation enters a substance, it can be ____________ as heat
  6. 8. phase of the moon when Earth is between the sun and moon
  7. 9. type of EM radiation used for cell phones, cooking, and radar guns
  8. 11. term for light (or other radiation) bouncing off a surface
  9. 12. energy that is being stored
  10. 13. a smaller object traveling around a larger object in a battle of inertia and gravity
  11. 16. the energy of motion
  12. 19. an imaginary line around which a planet spins