Energy & Simple Machines

123456789101112131415161718192021222324252627
Across
  1. 2. the energy contained within a system that is responsible for its temperature
  2. 5. the central point, pin, or shaft on which a mechanism turns or oscillates
  3. 8. the point on which a lever rests or is supported and on which it pivots
  4. 9. the complete path of an electric current
  5. 12. a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
  6. 13. ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine
  7. 14. power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines
  8. 15. energy transferred to or from an object via the application of force along a displacement
  9. 16. occurs when an object vibrates
  10. 18. a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord
  11. 24. energy of a body or a system with respect to the motion of the body or of the particles in the system
  12. 25. An object that possesses mechanical energy is able to do work
  13. 26. The conversion of one form of energy into another, or the movement of energy from one place to another
  14. 27. the ratio of the useful work performed by a machine or in a process to the total energy expended or heat taken in
Down
  1. 1. a simple machine of the inclined plane type consisting of a spirally grooved solid cylinder and a correspondingly grooved hollow cylinder into which it fits
  2. 3. energy can neither be created nor destroyed - only converted from one form of energy to another
  3. 4. a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindrical drum or shaft joined to the wheel to provide mechanical advantage
  4. 6. a plane inclined at an angle to the horizontal
  5. 7. a container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power
  6. 10. Energy stored in the bonds of chemical compounds
  7. 11. the principle by which the total energy remains constant in a system that is not subject to external influence
  8. 16. any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever
  9. 17. the energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system
  10. 19. radiant energy that travels in waves at the speed of light
  11. 20. energy related to forces on electrically-charged particles and the movement of those particles
  12. 21. machine made up of two or more simple machines
  13. 22. radiant energy emitted by the sun
  14. 23. a triangular shaped tool, a portable inclined plane, and one of the six simple machines