What is the typical outcome of placing a Rigidbody on a game object in Unity?

When you place a Rigidbody on a game object in Unity, the primary outcome is that the object can interact with the physics system, allowing it to respond to forces, gravity, and collisions. The Rigidbody component enables the game object to react according to the physics engine, which includes applying forces, detecting collisions, and allowing the object to move in a physically realistic way.

This component integrates the object more deeply into the Unity physics system, which includes responding dynamically to interactions with other objects in the scene. The Rigidbody allows for behaviors such as falling due to gravity or being pushed by other colliding objects, which makes the object's movement responsive and realistic in a 3D space.

The other options do not accurately describe the functionality provided by a Rigidbody. For example, making an object static and immovable contradicts the purpose of a Rigidbody, which is inherently about movement and interaction. Automatic invisibility is not a feature associated with Rigidbodies; rather, visibility is controlled by the renderer components. Lastly, triggering events without movement would not align with the primary purpose of a Rigidbody since its core function is to allow for physical interactions, including movement.