*what instrument could be used to determine the volume of an irregularly shaped solid? *

-i had a unit quiz a few days ago and my teacher said we can do test corrections for a better grade. i got to this number and saw that i got it wrong on the scantron. should it be 1 or 4?

4. you would put a certain amount of water in the graduated cylinder. then you would drop the irregular shaped object into it and the old measure of water subtracted from the new amount will give you the volume

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. 

I'd go for the one that says that knees are fulcrums, lower legs are levers and the ankles hold loads.hope it ,happy homework/ study/ exam!