What is referred to when the subject of the sentence performs the action?

When the subject of the sentence performs the action, it is referred to as the Active Voice. In this construction, the subject is the doer of the action, creating a straightforward and dynamic sentence structure. For example, in the sentence "The dog barks," the subject "the dog" is actively performing the action of barking. This contrasts with forms like the Passive Voice, where the subject is acted upon, or different sentence types such as Simple or Complex sentences, which categorize sentence structure rather than voice. Understanding the distinction between Active and Passive Voice is crucial for clear and engaging writing, as the Active Voice tends to create more vivid and emphatic sentences.