Unit #10 Crossword

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Across
  1. 4. A rigid bar resting on a pivot, used to help move a load.
  2. 7. How much work put into the machine is changed to useful energy by the machine.
  3. 9. The name used to describe a machine that utilizes multiple simple machines to serve one singular purpose.
  4. 10. A pry bar is an example of which type of classification of levers?
  5. 11. A rope or a chain wrapped around a grooved wheel used to make lifting objects easier.
  6. 13. Describes the number of times a machine multiplies the effort (input force) force.
  7. 15. The effort arm in a lever system is divided by the _________________ arm to calculate mechanical advantage.
  8. 17. A screw uses a horizontal force to produce a ________ force.
Down
  1. 1. Which classification of levers most resembles using a broom.
  2. 2. The mechanical advantage for this simple machine is calculated by dividing the length of the slope by the height of the slope.
  3. 3. What is missing in order to calculate the mechanical advantage of a screw? (Pie, Diameter, and?)
  4. 4. What is another word used to describe the weight being moved? Starts with an L.
  5. 5. a simple machine consisting of two wheels of different sizes that rotate together.
  6. 6. An object with an edge that is driven between two objects or parts of an object to secure or separate them.
  7. 8. Which arm on a lever is considered the arm the user applies force to?
  8. 11. This unit of measurement is calculated by dividing work by time.
  9. 12. A combination of an inclined plane and a wedge that is wrapped around a cylindrical shape.
  10. 14. is a pulley system uses two moveable pulleys, what is the mechanical advantage of that system?
  11. 16. The smaller wheel in a wheel and axle system is called the?