Question

fill in the blank question
a closed system on which the net external force is zero is defined as a(n)
need help? review these concept resources.
read about the concept

Explanation:

In physics (a subfield of Natural Science), a closed system with a net external force of zero is defined as an isolated system. This is based on the concept of systems in physics where an isolated system has no net external force acting on it, and also no matter or energy exchange with the surroundings (though the "closed" here might refer to matter exchange, and zero net external force adds to the isolation in terms of forces).

Answer:

isolated system