Physical Science Part 1

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Across
  1. 3. the movement of an object toward Earth because of gravity
  2. 4. the length of the path between two points
  3. 6. the percentage of the work input that becomes work output
  4. 7. the SI unit of power
  5. 8. the ability of a fluid to exert an upward force on an object placed in it
  6. 10. a substance or mixture that flows and has no shape of its own
  7. 12. movement in relation to a frame of reference
  8. 14. the SI unit of pressure, equal to 1 newton per square meter
  9. 15. the curved path of an object in free fall after it is given an initial forward velocity
  10. 17. a system of objects that are not moving in respect to one another
  11. 18. the product of distance and the force in the direction an object moves
  12. 19. the total distance traveled divided by the time it takes to travel
  13. 20. the overall force acting on an object after all the forces are combined
  14. 23. energy obtained from flowing water
  15. 24. a common unit of power, equal to 764 watts
  16. 26. the energy associated with the motion and position of everyday objects
  17. 29. sunlight that is converted into usable energy
  18. 30. the rate of doing work
  19. 31. the SI unit of work
  20. 32. an upward force due to a pressure difference between the top and bottom of a wing
  21. 33. the tendency of an object to resist a change in its motion
  22. 34. the ratio of the distance an object moves to the amount of time the object moves
Down
  1. 1. the fixed point a lever rotates around
  2. 2. a device that uses a pressurized fluid acting on pistons of different sizes to increase force
  3. 3. a friction force that opposes the motion of an object through a fluid
  4. 5. a steady change in velocity
  5. 9. thermal energy beneath Earth's surface
  6. 11. the equivalence of the buoyant force on an object and the weight of the fluid displaced by the object
  7. 13. the energy stored in atomic nuclei
  8. 16. a push or pull that acts on an object
  9. 21. the energy stored in chemical bonds
  10. 22. the constant velocity of a falling object when the force of air resistance equals the force of gravity
  11. 25. the result of a force distributed over an area
  12. 27. fluid friction acting on an object moving through the air
  13. 28. the energy associated with electric charges