Final answer:
The energizing force of mass movement processes is driven by factors such as net work done on a fluid and gravitational force, as well as the mechanical energy provided by muscles.
Step-by-step explanation:
The energizing force of mass movement processes can be explained by various factors and principles in physics. When a fluid flows into a narrower channel, its speed and kinetic energy increase due to the net work done on the fluid to push it into the channel.
Additionally, if the fluid changes vertical position, work is done on the fluid by the gravitational force. Another example is the mechanical energy provided by muscles when lifting an object, which powers the movement of matter.