Question

Which is always true in a closed system?(1 point)
Responses

Momentum is conserved.
Momentum is conserved.

Acceleration is not constant.
Acceleration is not constant.

Velocity is constant.
Velocity is constant.

Mass is not conserved

Answer 1

In a closed system, the statement that is always true is:

**Momentum is conserved.**

This is a fundamental principle of physics that applies as long as there are no external forces acting on the system.