a. Gears and sprockets are similar, with both mechanical devices containing teeth that aid power transmission. However, below are some key differences between the two.u003cbr/u003eb. Gear teeth interlock while rockets lock with a chain of bicycle or tracks of military tanks.u003cbr/u003ec. Gears can transmit torque in parallel, perpendicular and other configurations, whereas rockets work only along a parallel axis.  u003cbr/u003ed. Gears are better suited for short-distance transmission, while sprocket and chain work well for longer distances.u003cbr/u003ee. Gears transmit torques in opposite directions. However, the reverse is the case with rockets.