Physics

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Across
  1. 2. More generally, power is the rate of energy transfer by any ______.
  2. 4. All energy, such as nuclear, chemical, internal, and electrical, that is not mechanical energy is classified as __________ energy.
  3. 5. Work is not done on an object unless the object is moved with the action of a ____.
  4. 7. Work is done only when components of a force are ______ to a displacement
  5. 12. Work is done on an object when a force causes a __________ of the object
  6. 13. Elastic potential energy depends on distance __________ or stretched
  7. 14. power = work ÷ ____ interval
  8. 15. the work you do on the car is equal to the ______ of the force
  9. 17. the product of the component of a force along the direction of displacement and the magnitude of the displacement
  10. 18. Although the amount of mechanical energy is ________, mechanical energy itself can change form.
  11. 20. Machines with different power _____ do the same amount of work in different time intervals.
  12. 21. The net work done on a body equals its ______ in kinetic energy
  13. 22. Gravitational potential energy depends on ______ from a zero level
  14. 24. the energy associated with an object because of the position, shape, or condition of the object
  15. 26. the energy of an object that is due to the object’s motion
  16. 27. potential energy the potential energy stored in the gravitational fields of interacting bodies
  17. 28. elastic potential energy = 1/2 × spring constant × (distance compressed or ________)^2
Down
  1. 1. Mechanical energy is not _______in the presence of friction
  2. 3. a quantity that measures the rate at which work is done or energy is transformed
  3. 6. potential energy that is stored in any compressed or stretched object
  4. 8. Energy conservation occurs even when _________ varies
  5. 9. The symbol k is called the ______ constant, or force constant.
  6. 10. energy that the sum of kinetic energy and all forms of potential energy
  7. 11. ___ work = change in kinetic energy
  8. 16. Kinetic energy is a scalar quantity, and the SI unit for kinetic energy is the ____.
  9. 19. Work is _______ when the force is in the direction opposite the displacement.
  10. 23. Potential energy is ______energy
  11. 24. Work is ______ when the component of force is in the same direction as the displacement.
  12. 25. The ____ of work is important
  13. 28. power = force × ______