Which of the following is an example of a high explosive?

Dynamite is classified as a high explosive due to its sensitivity to detonation and its ability to produce a rapid release of gas and heat upon explosion. High explosives, like dynamite, undergo a detonation process, characterized by the shock wave traveling faster than the speed of sound. This allows for a substantial and immediate release of energy, making them potent for blasting and demolition purposes.

In contrast, other options such as ammunition, gunpowder, and fireworks do not fit the classification of high explosives. Ammunition often contains a propellant that can be classified as a low explosive since it burns rapidly but doesn’t detonate in the same manner as high explosives. Gunpowder is an example of a low explosive, as it deflagrates rather than detonates, creating a slower explosion. Fireworks, while capable of impressive displays and effects, also rely on controlled combustion rather than the rapid detonation characteristic of high explosives. Thus, dynamite stands out as the only true high explosive among the options provided.