What is a flipper in the context of stage scenery?

In the context of stage scenery, a flipper is best described as a hinged narrow flat of scenery. This is because flippers are typically used in theatrical productions to create various visual effects or to allow for scene transitions. They can be rotated or flipped to reveal different scenes or backgrounds, enhancing the dynamic nature of stage design.

The functionality of flippers allows for quick changes and can support scene changes that need to happen seamlessly, contributing to the overall flow of a production. This design element is especially useful in performances where space is limited, or quick scene changes are paramount, making them a valuable tool in scenic design and staging.

The other options relate to different aspects of theater but do not correctly define what a flipper is. Lighting fixtures, sound equipment, and seating arrangements serve different purposes in a theatrical setting, but they do not encompass the specific design and utility of a flipper in stage scenery.