A reference point is an object or location from which the movement of another object is determined. Which of the following could be a reference point?
I. a house
II. a moving car
III. a point on a map
IV. a person
A. I, III and IV only
B. I, II, III, and IV
C. Ill only
D. I and III only

C. Ill only

Explanation:

Motion can be defined as a change in location with respect to a reference point.

This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.

Mathematically, the motion of an object is described in terms of acceleration, time, distance, speed, velocity, displacement etc.

A reference point is an object or location from which the movement of another object is determined.

Thus, a point on a map is considered to be a reference point because it represents the starting point of an object or person in motion.