Question

1. which of the following best describes the process of heat transfer that occurs through the direct contact of particles, without the movement of the particles themselves?

options: conduction, radiation, convection, advection

Explanation:

To solve this, we analyze each option:

• Conduction: Heat transfer through direct particle contact, particles don't move (vibrate in place to transfer energy).
• Radiation: Heat transfer via electromagnetic waves, no medium/contact needed.
• Convection: Heat transfer via fluid (liquid/gas) particle movement (currents).
• Advection: Transfer of a substance (like heat in a fluid) by bulk fluid movement, not just heat transfer definition here.

The description matches conduction.

Answer:

A. Conduction