Experiment 2: Volume vs. Density
Experiment Objective:
The purpose of this experiment was to see how the mass of a black changes as its volume decreases. This would then reflect onto its density
Background Information:
It is a common misconception that a black hole is defined by its mass. However, this statement is false, because upon formation, the mass of this black hole stays constant. Its radius, known as the Schwarzschild radius can vary, and this ultimately affects its density. Therefore, density plays a huge role in characterizing a black hole.
Experiment Theory
When the balance between the nuclear fusion and gravitational force is broken, a star collapses in on itself because of the immense force of gravity. At this point, the size of this start is getting smaller and smaller, consequently becoming infinitely dense. In an experimental setting, a balloon wrapped around with tin foil can be used to represent this dying star. When a pin is poked through it, that is when the balance is broken. Hands squeezing the balloon can act as the force of gravity. The mass of the balloon can be measured to see if there are any changes.
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Results:
Analysis:
After the completion of this investigation, our results have shown that the mass of a black hole does not change as it gets smaller in size (the two function in these graphs are moving right to left). The slope observed in this graph is very close to zero, making the function more or less "constant". A constant mass with a decreasing volume translates into a larger amount of density. This experiment was done at a significantly larger scale than that of black holes. But the idea maintains that black holes are infinitely dense.