AbstractMisconception is a misinterpretation of a concept that incompatible with scientists conception. Misconception can be caused by experiences when interacting with natural environment. One of physics concept that is often encountered in everyday life and still a misconception for students is Newton's law concept. Natural learning can help students understand scientific concepts. Using surrounding environment in learning is to make it a learning resource or known as educational park. Physics e-book of Bukik Chinangkiek Edupark, describes the application of Newton's law concept on flying fox rides very well. But, this book only contains an evaluation of student’s knowledge, not accompanied by an evaluation to find out the understanding level of student’s concept. The evaluation of student’s concept understanding is necessary to detect and distinguish the understanding level of student’s concepts, between understand the concept, understand the concept but not sure, misconceptions, an.....