Question

Define Expension?!?!?!​

Answer 1

expansion, in physics, increase in volume resulting from an increase in temperature. ... The amount that a unit length along any direction of a substance increases for a temperature increase of one degree is called the coefficient of linear expansion of the substance. Most liquids also expand when heated.

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Answer 2

• In physics, expansion is the increase in volume caused by a rise in temperature.
• Contraction is the inverse of expansion.
• When heat is delivered to a body, the rate of vibration and the distances between the molecules that make up the body rise, increasing the volume of the body.
• For any given change in temperature, this increase in volume is not consistent for all substances, but is a trait unique to each kind of matter.
• Zinc and lead, for example, expand more as the temperature rises by one degree than silver or brass.
• Because solids have a defined form, each linear dimension of the solid rises in proportion to the increase in temperature.