Rside-physics-Andrew-All multi word answers will have a - in between the words.

Edit Answers
123456789101112131415161718
Across
  1. 3. standard distance unit
  2. 5. "x" amount of units you travel starting at the original position
  3. 6. standard time unit
  4. 7. a direction, sometimes referred to as down or -
  5. 8. a measurement that represents a position
  6. 12. smooth curved or straight line that goes through as much of the data as possible
  7. 13. a direction, sometimes referred to as up or +
  8. 15. "x" amount of units you end up away from the original position
  9. 16. represented on the y axis
  10. 17. a direction, sometimes referred to as forwards or +
Down
  1. 1. the line on a position time graph is staying at the same level on the y axis
  2. 2. the term for speeding up
  3. 4. represents rise over run
  4. 7. a measurement that represents time and distance but not position
  5. 8. the proper word for speed in physics
  6. 9. the size of something
  7. 10. a direction, sometimes referred to as backwards or -
  8. 11. represents uniform motion
  9. 14. used to represent a change in quantity
  10. 18. represented on the x axis