What happens to the cavity inside an object if the temperature is increased?

Question

BlackTom AI · Accepted Answer

To approach the question, I’ll consider how temperature affects a solid with a cavity inside. When temperature rises, most solids undergo thermal expansion, meaning they increase in size in all dimensions to a first approximation.

Option a: It becomes larger. If the surrounding material expands, the boundaries of the cavity (which are part of the material) move outward from the center. As a result, the cavity volume increases. This aligns with the general idea of uniform thermal expansion causing internal spaces to enlarge.

Option b: It does not change. This would be true only if there were no thermal expansion at all, which isn’t the case for most materials. Since solids typically expand with temperature, assuming no change would ignore the basic physics of thermal expansion.

Option c: It becomes larger or smaller depending on the size of the cavity. While intuition might hint at a dependence on geometry, the fundamental behavior due to linear thermal expansion is uniform: the cavity walls tend to move outward as the material expands, so the cavity generally increases in size; there isn’t a universal scenario where the cavity always shrinks for all sizes.

Option d: It becomes smaller. This would imply the material contracts with heating, which contradicts the common property of thermal expansion in most substances. Only materials with negative thermal expansion or specific conditions would do this, which isn’t the default expectation here.

In summary, the standard consequence of increasing temperature in a typical solid with an internal cavity is that the cavity enlarges due to the overall expansion of the surrounding material.

UCIC 202503 PHYS101 Quiz 6

What happens to the cavity inside an object if the temperature is increased?

查看解析

登录即可查看完整答案

类似问题

What is the difference between coefficient of linear expansion (α) and coefficient of volume expansion (β)?

Which of the following is the correct set of formula for thermal expansion in solid objects?

What is thermal expansion?

An aluminum plate has a circular hole. If the temperature of the plate increases, what happens to the size of the hole?

双金属板由两种不同热膨胀系数的材料组成。板材顶部的热膨胀系数小于底部。如果整个盘子的温度升高，盘子会怎样？

Some iron has a coefficient of linear expansion of 12 x 10-6 K-1. A 100mm length of iron piping is heated through 20 K. The pipe extends by:

A bimetal plate consists of two materials of different coefficients of thermal expansion. The coefficient of thermal expansion of the top part of the plate is less than the bottom part. If the temperature of the entire plate increases, what happens to the plate?

An aluminum plate has a circular hole. If the temperature of the plate increases, what happens to the size of the hole?

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单