vocab

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Across
  1. 5. an arrow whose length represents the magnitude of a quantity and whose direction represents the direction of the quantity
  2. 6. an object that falls around the earth or some other body rather than falling into it
  3. 7. a quantity that can be completely specified by its magnitude, and has no direction
  4. 8. the process of resolving a vector into components
Down
  1. 1. the vector sum of two or more component vectors
  2. 2. one of the vectors, often mutually perpendicular, whose sum is a resultant vector
  3. 3. a quantity that has both magnitude and direction
  4. 4. any object that moves through the air or through space, acted on only by gravity (and air resistance, if any)