Does the pH change if you have a greater volume of the substance?

Since the volume of the solution increases, the molarity decreases. Thus, for an acidic solution, the pH will increase, whereas for a basic solution, the pH will decrease.

Answer and Explanation:

No , because ph depend upon conc if conc change then ph change. If u increase mole or u decrease volume or u add something so that conc change then only ph change.

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero.