开放性设计是指基于常规方法而又不拘于常规方法的发散思维设计方法,具有灵活性、综合性、多样性、创造性。能在缺少常规条件下运用所学知识和一些简易材料,来完成任务。在物质密度测定中,根据不同材料,利用不同的原理可有多种开放性设计方法。 Open design refers to a divergent thinking design method that is based on conventional methods and is not limited to conventional methods. It is flexible, comprehensive, diverse, and creative. Can use the knowledge and some simple materials in the absence of conventional conditions to complete the task. In the determination of the material density, according to different materials, there can be a variety of open design methods using different principles.