Crossword Puzzle on Momentum and Forces

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Across
  1. 3. : The "m" in p = mv; a measure of inertia and NOT the same as weight
  2. 4. : Newton's First Law describes this property — the tendency of an object to resist changes in its state of motion
  3. 5. : Unlike speed, this quantity has both magnitude and direction; essential for calculating momentum
  4. 9. : Type of collision in which both momentum AND kinetic energy are conserved
  5. 10. : The law stating that total momentum in an isolated system remains constant before and after a collision
  6. 11. : Force multiplied by time; mathematically equals the change in momentum
  7. 13. : Momentum, velocity, and force are all this type of quantity — they have both magnitude AND direction
  8. 14. : An event in which two objects exert large forces on each other over a short time interval
  9. 15. : An _______ force is required to change
Down
  1. 1. : This force gives all objects near Earth a constant downward acceleration of approximately 9.8 m/s²
  2. 2. : The SI unit of force; one of these equals one kilogram times one meter per second squared
  3. 3. : The product of an object's mass and velocity; represented by the variable p
  4. 6. : Unit equal to one Newton-meter; used for both work and energy — also appears in impulse-energy problems
  5. 7. : When a gun fires a bullet forward, the gun moves backward due to this momentum conservation phenomenon
  6. 8. : Type of collision where kinetic energy is lost; objects may stick together
  7. 12. : A contact force that opposes motion and can reduce an object's momentum over time