Physical Science Part 1

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