Physics

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Across
  1. 4. A device that increase the amount or direction of the force
  2. 7. Moving an object a distance
  3. 9. The number of times a machine increase or multiplies the force
  4. 10. Detectable air waves created by vibration;measured as wave frequencies
  5. 12. How well a machine overcomes friction
  6. 13. The rate at which work is done
  7. 14. The energy produced by the motions of molecules and atoms
  8. 16. _____ machines have only one or two parts
  9. 17. Resistance to movement between two surfaces that touch
Down
  1. 1. The structure of atoms and molecules and the functions of their particles
  2. 2. ______machines combine several simple machines
  3. 3. Wave lengths of electromagnetic radiation;optics is the study of the use of light
  4. 5. The push or pull on an object to move it
  5. 6. The study of force
  6. 8. The opposition to movement(often called inertia)
  7. 11. Magnets can be used to produce electricity which can create power
  8. 15. The study of force which may be on objects that are moving or at rest