Given a scientific question, generate a correct answer to it.

Q: What is the smallest particle of an element that still has the properties of that element is called?

A: atom
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Q: Potential differences from various voltage sources are necessary in order to create electrical fields, which result in what flow of charge?

A: current
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Q: Potential energy is not only associated with the location of matter, but also with the structure of matter. even a spring on the ground has potential energy if it is what?

A:
compressed
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