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I have researched black holes but I can't seem to find the answer. Any help would be appreciated.

Qmechanic
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Abi
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    Related: http://physics.stackexchange.com/q/18981/50583, http://physics.stackexchange.com/q/75619/50583 and others – ACuriousMind Sep 06 '15 at 20:19

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A black hole itself is not a singularity, but General Relativity predicts that a singularity exists at the center of a black hole.

As far as I can determine, it's called a singularity because the laws of physics cease to describe what happens there. Curvature of space-time and density of matter become infinite. They are undefined. In mathematics, a singularity is an object that is undefined, or a point in a set where an object is not well-behaved.

Ernie
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  • Thank you so much @Ernie, this really helped me understand my physics homework. – Abi Sep 06 '15 at 20:27