An input apparatus (2000) includes a motion detection unit (2020) and an input recognition unit (2040). The motion detection unit (2020) detects motion of an object by using a captured image including the object. Here, the detected motion of the object is motion of the object in a period defined based on a result of detection by a sensor attached to the body of a user of the input apparatus (2000). The input recognition unit (2040) recognizes input to an information processing apparatus based on the detected motion of the object.