Machines and Motion Lesson 1-8

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Across
  1. 2. The force exerted by a gas or liquid that is displaced.
  2. 5. energy is the ____ to perform work.
  3. 7. E = mc^2 is the equation that expresses the relationship between mass and ___.
  4. 9. matter cannot be created or destroyed, only changed in form
  5. 10. equation used to calculate momentum.
  6. 12. friction is a force that resists _____.
  7. 15. Tensile strength is the amount of ____ that an object can withstand.
  8. 16. A continuous pull on an object.
  9. 18. energy cannot be _____ or destroyed, only changed in form
  10. 21. A force that resists movement
Down
  1. 1. A ____ force is a push or a pull on an object.
  2. 3. The scientific definition of work is force times ____.
  3. 4. the movement of mass in a particular direction
  4. 6. The law of conservation of momentum states that all changes of momentum must be ____.
  5. 8. Friction can be damaging because is can produce what?
  6. 10. amount of work done in a given period of time
  7. 11. Force is directly related to the ____ of an object.
  8. 13. mass and ___ are two quantities that affect an object's momentum.
  9. 14. ____ energy is energy that is stored.
  10. 17. G = 9.8m/sec^2 is the mathematical equation for _____.
  11. 19. ____ energy is energy that is being used
  12. 20. Energy is the ability to perform ____.