Question

What is the purpose of a reference point?

to provide a standard system of measurement
to establish a point from which to measure future distance, or if movement has occurred
to determine the speed of an object in miles per hour
to provide a standard from which to evaluate variables in an experiment

Answer 1

Answer: "to establish a point from which to measure future distance, or if movement has occurred."

A reference point is a fixed location used to determine an object's position and whether it has moved relative to that location. The other choices describe units (miles per hour), standards of measurement, or experimental controls, not the physics concept of a reference point.