I think the answer is the flagellum
Locomotion.
Yes, bacteria does obtain and use energy for locomotion.
Cholera bacteria has got a flagellum at one pole for locomotion.
Cocci are spherical bacteria. As such, they do not have flagella, or tails that allow other types of bacteria to move on their own. Most cocci are not capable of locomotion.
Some bacteria have flagella, which appearance resembles a long thin tail. They use this to move around. Others "squirm" and glide.
Archaea do not have a defined means of locomotion like bacteria or eukaryotes. Some archaea can move using flagella, pili, or by gliding along surfaces, but they are generally not as motile as bacteria. Archaea can also be transported passively by water currents or wind.
Bacteria can use flagella, cilia, or appendages called pili for locomotion. Flagella are long, whip-like structures that rotate to propel the bacterium forward. Cilia are short, hair-like structures that beat in coordinated waves to move the bacterium. Pili can also help bacteria move by attaching to surfaces and pulling the cell forward.
Some methanogenic bacteria (which are anaerobic) do have flagella. You can read more in the related link
Bacteria exhibit several methods for locomotion, including flagellar movement, where they use whip-like structures called flagella to propel themselves through liquids. Some bacteria employ pili or fimbriae for twitching motility, allowing them to move along surfaces by extending and retracting these hair-like appendages. For nutrition, bacteria can be autotrophic, using photosynthesis or chemosynthesis to produce their own food, or heterotrophic, obtaining nutrients by absorbing organic compounds from their environment. These strategies enable bacteria to thrive in diverse ecosystems.
There are several sentences that the word locomotion can be used in. One sentence is; The steam locomotion was late to the depot.
There is no such thing as a locomotion platypus.
Chinese alligator locomotion