8th Grade Physics Crossword

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Across
  1. 3. the distance an object travels per unit of time; the rate at which an object moves
  2. 6. the total distance an object travels divided by the total time
  3. 8. acceleration depends on the object's mass and on the net force acting on the object
  4. 14. a push or a pull
  5. 17. if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the object (for every action there is an equal and opposite reaction)
  6. 18. the tendency of an object to resist a change in motion
  7. 19. the SI unit of force
Down
  1. 1. the amount of matter in an object
  2. 2. speed in a given direction
  3. 4. the force that two surfaces exert on each other when they come in contact
  4. 5. Forces when equal forces are acting on an object in opposite directions (net force = 0)
  5. 7. an object at rest remains at rest, and an object in motion remains in motion at constant velocity until acted upon by an unbalanced force
  6. 9. how far an object has moved
  7. 10. Resistance a type of fluid friction, occurs as objects move through the air
  8. 11. the rate at which velocity changes (can be speeding up, slowing down, or changing direction)
  9. 12. Velocity the greatest velocity a falling object reaches when the force of air resistance cancels out acceleration due to gravity
  10. 13. a characteristic of a moving object that is related to the mass and velocity of the object
  11. 15. Forces result in a net force and cause a change in the object's motion
  12. 16. a force that pulls objects toward each other; affected positively by mass and negatively by distance
  13. 20. the force of gravity acting on an object; varies with the strength of the gravitational field