science

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Across
  1. 2. the quantity of matter which a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational field
  2. 6. the speed of something in a given direction
  3. 7. the force applied in one direction is greater than the force applied in the opposite direction
  4. 8. the rate of change of velocity per unit of time
Down
  1. 1. to put forth or into use with great energy
  2. 3. the distance an object travels per unit of time fast
  3. 4. the state in which one object’s distance from another is changing
  4. 5. a push or a pull exerted on an object