Cross Word Puzzle in Physical Science

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Across
  1. 4. __________ It is the shortening of the measured length of a moving object relative to the observer’s reference frame.
  2. 5. Heinrich _____ generated and produced radio waves thereby proving the theory of Maxwell.
  3. 6. is the Speed of moving object with direction.
  4. 7. The Time ______ Is The slowing down of time as seen by observer relative to a reference frame
  5. 8. Johannes _____ described the motion of planets around the sun, now known as Kepler’s Law of Planetary Motion.
  6. 11. wave is more prominent to a space where massive celestial objects undergo also a massive acceleration.
  7. 12. ______ Newton introduced the universal law of gravitation uniting
  8. 13. does not accelerate
  9. 14. is The change in velocity of moving object.
  10. 17. Albert ________ completed his theory of relativity and stated the law of mass-energy conservation.
  11. 19. James _____ Maxwell predicted the theory of electromagnetism and
  12. 21. which is red._______.
Down
  1. 1. is equal to the mass multiplied by the square of the speed of light
  2. 2. that lights are also electromagnetic waves.
  3. 3. is a special type of reference where an
  4. 4. is a force that pulls the objects with mass together. ________________
  5. 6. No two events happen at the same time for two observers is the principle of
  6. 7. is the displacement of the spectrum of an astronomical object toward longer
  7. 9. __________is A theory that explains the relationship between space and time.
  8. 10. and celestial theories of motion.
  9. 11. _____ Galilei studied, observed, and experimented with inclined
  10. 15. is a region in space in which gravity is too strong that even light cannot escape. And is Called Black ____________.
  11. 16. and introduced the law of falling objects.
  12. 18. a Newtonian physics, all speeds are _______________.
  13. 20. fastest speed known to man is equal to the speed of _______.