A washer has a hole in the middle. (a) As the washer is heated, does the hole expand, shrink, or stay the same size? (b) Whichof the following is the best explanation for you prediction?I. The hole shrinks because the metal of the washer expands inward into the hole.II. The hole expands along with everything else—every dimension of the washer expands.III. The size of the hole remains the same because it is empty space, rather than metal like the washer.

Question

A washer has a hole in the middle. (a) As the washer is heated, does the hole expand, shrink, or stay the same size? (b) Which
of the following is the best explanation for you prediction?
I. The hole shrinks because the metal of the washer expands inward into the hole.
II. The hole expands along with everything else—every dimension of the washer expands.
III. The size of the hole remains the same because it is empty space, rather than metal like the washer.

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