Question

Does motion affect the rate of a clock as measured by an observer moving with it? Does motion affect how an observer moving relative to a clock measures its rate?

Short answer

The rate of a clock measured by an observer moving relative to it is affected by motion, while the rate of the observer's clock in his reference frame is unaffected.

Step-by-step solution

Definition of reference frame

A frame of reference is a collection of coordinates that may be used to calculate the locations and speeds of objects inside that frame.

Result of the theory of special relativity.

Time is relative and reliant on the relative velocity of the observer's frame of reference and the event's frame of reference, according to special relativity theory..

The clock's reference frame is unaffected by the observer's movement.

As a result, while motion influences how an observer travelling relative to a clock measures its rate, the rate of the observer's clock in his reference frame remains constant