physical terms

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Across
  1. 3. the actual length of the path travelled by the object.
  2. 5. the change in position of an object.
  3. 7. the rate at which an object changes its position
  4. 8. An object is said to be at rest if it does not change its position with respect to its surroundings with time
  5. 10. moving in a straight line at a constant speed
Down
  1. 1. he fixed numerical value of the speed of light in vacuum c to be 299 792 458 when expressed
  2. 2. a quantity that has both magnitude and direction
  3. 4. he time rate at which an object is moving along a path
  4. 6. change in position of an object
  5. 9. a physical quantity that is completely described by its magnitude