physics 1st semester exam

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Across
  1. 5. Those digits in a measurement that are known with certainty plus the first digit that is uncertain
  2. 7. A vector that represents the sum of two or more vectors
  3. 9. The rate at which velocity changes over time
  4. 10. The product of the component of a force along the direction of displacement and the magnitude of the displacement
  5. 11. The motion of a body when only the force of gravity is acting on the body
  6. 12. A description of how close a measurement is to correct or accepted value of the quantity measured
  7. 13. The change in position of an object
  8. 15. The energy of an object that is due to the object’s motion
  9. 16. The mutual force of attraction between particles of matter
  10. 18. The energy associated with an object because of the position, shape, or condition of the object
  11. 19. The curved path that an object follows when thrown, launched, or otherwise projected near the surface of the earth
  12. 20. Vector sum of all forces acting on an object
Down
  1. 1. The upward force exerted by a liquid on an object submerged in or floating on liquid
  2. 2. The total displacement divided by the time interval during which the displacement occurred
  3. 3. A set of particles or interacting components considered to be a distinct physical entity for the purpose of study
  4. 4. The potential energy stored in the gravitational fields of interacting components
  5. 6. The product of the force and the time over which the force acts on the object
  6. 8. A force that acts on a surface in a direction perpendicular to the surface
  7. 14. A physical quantity that has magnitude but no direction
  8. 17. An action exerted on an object which may change the object’s state of rest or motion