Question

Which is not a component of a frame of reference?

A. an observer


B. a odometer


C. a timer


D. a coordinate system

Answer 1

Also called reference frame. Physics. a framework that is used for the observation and mathematical description of physical phenomena and the formulation of physical laws, usually consisting of an observer, a coordinate system, and a clock or clocks assigning times at positions with respect to the coordinate system.

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Answer 2

B. Odometer

Step-by-step explanation:

Option B is correct

A frame of reference is a framework where we measure the changes in position of an object be it displacement, Velocity or acceleration over a period of time as observed by an observer. So, all we need is an observer, a coordinate system ( for directional reference) and a timer.

Here, an odometer is not a part of the frame of reference, because irrespective of the frame, the odometer will always measure the same distance.