EFM 2: Speed/Acceleration & EFM 3: Forces

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Across
  1. 4. Forces acting on an object that form a net force of zero.
  2. 6. The counterforce that opposes motion between two surfaces in contact.
  3. 8. The RATE at which speed and direction changes over time
  4. 12. What type of acceleration is it if an object is slowing down?
  5. 13. What type of acceleration is it if an object is increasing speed.
Down
  1. 1. The variable that a scientist purposely changes in an experiment.
  2. 2. What does the equation Distance divided by Time tell you?
  3. 3. The speed AND direction of a moving object.
  4. 5. A push or pull on an object
  5. 7. A synonym for 'same' (or something that stays the same)
  6. 9. A force acting AGAINST an object by an outside source.
  7. 10. The unit we used to measure distance (in our EFM 2.3 lab, with the track)
  8. 11. The type of force that is the sum of all forces acting on an object.