U1: L1: Motion in one direction

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Across
  1. 3. when the observer is at rest, relative speed equals .... speed.
  2. 5. The simplest type of motion.
  3. 6. The device that identify the speed of object.
  4. 7. The speed that has equal distances in equal periods of time.
  5. 9. The total distance over the total time taken.
  6. 10. Object moves in straight line in one direction.
Down
  1. 1. The speed relative to a moving or stopping observer.
  2. 2. The result of multiplying speed of the object by time.
  3. 4. The distance covered by the object in one second
  4. 8. The change in the object position or direction by time.