Which statement best describes a rocket?

The correct statement describes a rocket as an unguided weapon powered through the air by a rocket motor. Rockets operate on the principle of thrust generated by expelling exhaust gases at high speed, which propels them in the opposite direction according to Newton's Third Law of Motion. Unlike guided missiles, rockets are typically launched in a predetermined trajectory and do not have the means to change course or adjust their path once launched. This characteristic defines them as unguided.

In contrast, guided missiles are designed to engage specific aerial or ground targets through advanced navigation and control systems. Bombs delivered by aircraft rely on gravity and have no propulsion system of their own, positioning them distinctly from rockets. Dorsal weapons carried by submarines refer to weaponry stowed on the upper surface of a submarine, which also does not relate to the operational mechanics of a rocket. Thus, the identification of rockets as unguided weapons distinguishes them within the context of military ordnance.