Physics
Grade-9
Easy
Question
______ separates the system from the surroundings.
- Boundary
- Membrane
- Skin
- None of the above
Hint:
The system boundary is a rectangle that you can draw in a use-case diagram to separate the use cases that are internal to a system from the actors that are external to the system.
The correct answer is: Boundary
The boundary is the closed three-dimensional surface that encloses the system and separates it from the surroundings.
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