Simple Machines Crossword

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Across
  1. 2. pair A constraint that requires a curve or surface in the moving body to maintain contact with a curve or surface in the fixed body.
  2. 5. The tendency of a force to rotate an object about an axis, fulcrum, or pivot.
  3. 6. A device designed to transform input forces and movement into a desired set of output forces and movement.
  4. 14. and axle A machine in two parts rotate together in to transfer force from one to the other.
  5. 16. joint A one-degree-of-freedom kinematic pair used in mechanisms.
  6. 17. pair A constraint that comprises belts, chains, and such other devices.
  7. 18. machine A mechanical device that changes the direction or magnitude of a force.
  8. 19. linkage An assembly of bodies connected to manage forces and movement.
  9. 20. A wheel on an axle that is designed to support movement of a cable or belt along its circumference.
  10. 22. first law of motion Objects that do not experience any net force will continue to move in a straight line with a constant velocity until they are subjected to a net force.
  11. 23. plane A flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load.
  12. 25. A structural element that is capable of withstanding load primarily by resisting bending.
Down
  1. 1. A type of bearing that connects two solid objects, typically allowing only a limited angle of rotation between them.
  2. 3. A circular movement of an object around a center of rotation.
  3. 4. A rotating machine part having cut teeth, or cogs, which mesh with another toothed part in order to transmit torque.
  4. 7. joint A two-degrees-of-freedom kinematic pair used in mechanisms.
  5. 8. joint A linear sliding movement between two bodies, and is often called a slider, as in the slider-crank linkage.
  6. 9. A mechanism that converts rotational motion to linear motion, and a torque to a linear force.
  7. 10. pair An ideal joint that constrains contact between a point, line or plane in the moving body to a corresponding point line or plane in the fixed body.
  8. 11. law of conservation of mechanical energy The mechanical energy of an isolated system remains constant in time, as long as the system is free of friction and other non-conservative forces.
  9. 12. A triangular shaped tool, a compound and portable inclined plane of a wedge is given by the ratio of the length of its slope to its width.
  10. 13. machine A machine formed from a set of simple machines connected in series with the output force of one providing the input force to the next. For example a bench vise consists of a lever in series with a screw, and a simple gear train consists of a number of gears connected in series.
  11. 15. pair A connection between two bodies that imposes constraints on their relative movement.
  12. 21. A machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum.
  13. 24. motion The motion along a straight line, and can therefore be described mathematically using only one spatial dimension.