Mechanisms and Gears

1. The application of force that moves an object a certain distance.
6. A swing back and forth at a regular rate.
7. The part of a machine which contains two or more pieces arranged so that the motion of one compels the motion of the others.
9. The transmission of power between shafts by means of a chain connecting sprockets on the shafts.
10. A toothed wheel that works with others to alter the relation between the speed of an engine and the speed of the driven parts.
11. A twisting force.
13. The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
14. Circular movement.
16. Opposite in position, direction, order or effect.
17. The ratio of the speed of the driving member of a gear train to that of the driven member.
21. A push or pull on an object.

2. A back and forth movement.
3. A combination of two or more gears used to transmit motion between two rotating shafts or between a shaft and a slide.
4. One of a pair of gears used to connect two shafts whose axes intersect.
5. Movement in a straight line.
8. Something put into a system, such as resources, in order to achieve a result.
12. The member of a pair of gears to which motion and power are transmitted by the other. The output gear.
15. The results of the operation of any system.
18. The ability to do work.
19. A gear between the driver and the driven gear used to change rotational direction.
20. The gear which transmits power and motion to the rest of the system. The input gear.