physics key vocab

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Across
  1. 1. the rate of change of a scalar field with respect to distance, in the direction of the maximum change
  2. 3. an influence that can cause an object to change its velocity unless it is counterbalanced
  3. 5. the speed in combination with the direction of motion of an object
  4. 9. the stored energy an object or system possesses due to its position or configuration, often associated with the potential to do work
  5. 11. the natural tendency of objects in motion to stay in motion and objects at rest to stay at rest, unless a force causes the velocity to change
  6. 13. measures the length between objects or points without regard for direction
  7. 14. a form of energy that an object or a particle has by reason of its motion
  8. 15. a measure of how much matter there is in an object
  9. 17. a particular measurable property of an isolated physical system does not change as the system evolves over time
  10. 18. a comparison of the energy output to the energy input in a given system
Down
  1. 2. the rate of change of an object's velocity over time
  2. 4. a fundamental force of attraction that exists between any two objects with mass
  3. 6. a state where a system experiences no change in its motion or internal energy
  4. 7. the vector sum of two or more vectors
  5. 8. the shift in location when an object in motion changes from one position to another
  6. 10. the magnitude of the change of its position over time
  7. 12. a measure of the size of the pull of gravity on an object
  8. 16. the ability to do work