AG Mechanics CDE Practice Exam 2026 - Free AG Mechanics Practice Questions and Study Guide

Question: 1 / 400

In metal, the most rapid movement of heat is

diagonally

In metal, the most rapid movement of heat is diagonally. This is because metals are considered to be good conductors of heat. When heat is applied to one end of a metal object, the particles in the metal vibrate and transfer this thermal energy to neighboring particles. In the case of a metal, heat is transferred through the lattice structure in a direction perpendicular to the direction of the temperature gradient, which is diagonally. This rapid movement of heat diagonally through the metal is a key characteristic of how heat is conducted in metallic materials.

The other options are incorrect because heat does not typically move in those directions in metals. Heat transfer through metals primarily occurs in a direction perpendicular to the temperature gradient, which is diagonally, making option A the correct answer.

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