Question

Suppose you have a large supply of sponge balls with weights in the centre, so that when the balls are piled on each other the bottom ones are flattened. Sketch a graph that generally describes mass vs. volume for these sponge balls. Also, would weighted sponge balls represent a good model for liquid molecules such as water or methanol? Use the shapes of your graphs to support your answer.

Answer 1

We can't do drawings/graphs on this board.

Answer 2

As the weight is added, the volume should decrease as explained in the question. However, you will get a curve that will slope downwards since the decrease in volume would be more rapid in the beginning than it will be in the end.

Graph would look like this:
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Hope that made some sense. Make sure to label your volume on the x-axis and the mass on the y-axis, since the mass is the dependent variable.

Using pure knowledge as I am conducting this experiment myself. Good luck. ;)