Unit D Crossword Faith.H 8.Sau

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Across
  1. 4. Belt or chain to transfer energy from an energy source to an object (e.g., a bicycle chain).
  2. 7. System that uses a liquid under pressure to move loads; device that uses liquids in a confined space to transfer forces; works according to Pascal’s law.
  3. 9. When pressure is applied to a liquid in a container, the pressure and force is transmitted equally and undiminished throughout the liquid; an enclosed liquid transmits pressure equally in all directions.
  4. 10. System in which simple machines all work together; parts of a complex machine that have just one function are called subsystems and often contain a simple machine.
  5. 12. Simple machine that consists of a cylinder with a groove cut in a spiral on the outside.
  6. 17. Tool or device made up of one basic machine.
  7. 19. Measurement of how well a machine or device uses energy; can be calculated by dividing mechanical advantage by speed ratio or by dividing work output by work input.
  8. 21. Simple machine made up of a rigid bar or plank that rotates on a fixed object called a pivot or fulcrum.
  9. 23. Force a machine applies to an object.
  10. 25. Measure of the amount of force applied to a given area; as an equation p=F/A, where p is pressure, F is force, and A is area; measured in pascals (Pa).
Down
  1. 1. A plan or drawing produced to show the look and function or workings of a building, garment, or other object before it is built or made.
  2. 2. Simple machine made up of a flat surface, such as a board, at an angle to another flat surface, such as the ground or a table top; ramp.
  3. 3. The ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.
  4. 5. Device that helps us do work.
  5. 6. Special type of linkage for transferring the energy from the engine to the wheels in large vehicles such as cars and trucks.
  6. 8. Measure of how the speed of the object is affected by a machine; calculated by dividing the input distance by the output distance.
  7. 11. Simple machine made up of a wire, rope, or cable moving on a grooved wheel; may be made up of one or many wheels; can be fixed in place or movable.
  8. 13. Simple machine that looks like an inclined plane, but is forced into an object.
  9. 14. Smaller group of parts within a complex machine that performs a specific function.Science in Action 8.pdf
  10. 15. A simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.
  11. 16. Force that opposes motion.
  12. 18. Pair of wheels with teeth that interlink; when they rotate together, one gearwheel transfers turning motion and force to the other. Scie
  13. 20. Force applied to operate a machine.
  14. 22. Purpose or task.
  15. 24. Is done when a force acts on an object to make the object move.