non-isolated system
[nɑn-ˈaɪ-sə-ˌlā-təd ˈsis-təm]
nounpl: non-isolated systems
sistema não isolado
1. A physical system that can exchange energy, matter, or both with its surroundings
A cup of hot coffee is a non-isolated system because it exchanges heat with the environment.
Uma xícara de café quente é um sistema não isolado porque troca calor com o ambiente.
2. In thermodynamics, a system with permeable or interactive boundaries with its external environment
The human body functions as a non-isolated system, exchanging heat and matter with the surroundings.
O corpo humano funciona como um sistema não isolado, trocando calor e matéria com o ambiente.
3. A system whose properties change due to external influences and interactions
In physics problems, a non-isolated system requires consideration of external forces and energy transfers.
Em problemas de física, um sistema não isolado requer consideração de forças externas e transferências de energia.
This is primarily a scientific and academic term used in physics and engineering education in both Brazil and English-speaking countries. It is fundamental to thermodynamics courses and appears in textbooks, research papers, and academic discourse. The concept is universally taught in the same way across Portuguese-speaking and English-speaking educational systems.
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