Question

Reference frame definitely changes when_____also changes.

Answer 1

The answer is: Position
Reference frames describe the position of points relative to the body. These frames are used to specify the relationship between a moving observer and the phenomenon or phenomena under observation. Reference frame definitely changes when the body is changing. That is the reason that in order to describe the position of a point that moves relative to a body that is moving relative to the Earth, it is usually convenient to use a reference frame attached to the moving body.

Answer 2

Reference frame definitely changes when :-

POSITION OF THE BODY changes.

1.To describe the position of a point that moves relative to a body that is moving relative to the Earth, it is usually convenient to use a reference frame attached to the moving body.

2.The motion of the piston in the engine of a moving automobile, for example, is of more interest relative to the block than relative to the ground, whereas the motion of the moving parts of the engine relative to one another may be more important than their motions relative to the block.