Across
- 4. a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.
- 6. a rod or spindle (either fixed or rotating) passing through the center of a wheel or group of wheels.
- 7. Force: A surface force or body force acting on an object. External forces are sometimes called applied forces.
- 9. Force: any type of force that is exerted onto a machine
- 10. the state or quality of being efficient.
- 11. a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.
- 12. activity involving mental or physical effort done in order to achieve a purpose or result.
- 13. one of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism (such as the engine of a vehicle or the crank of a bicycle) and the speed of the driven parts (the wheels).
Down
- 1. 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.
- 2. Advantage: the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.
- 3. Plane: a plane inclined at an angle to the horizontal.
- 5. Force: the force you put out of an object.
- 8. a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated so that it pierces wood or other material and is held tightly in place.
- 11. the ability to do something or act in a particular way, esp. as a faculty or quality.