Question

what happens to an object's size as it heats up?
and

why is it important that engineers think about this when they make engines, which have many small cogs and interlocking parts?

Answer 1

Answer:

takes up more space

Explanation:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.

Answer 2

Answer:

take up more

Explanation:

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