Vocab-Chpt 9

A measurement of the average kinetic energy of the particles in a substance; the hotness or coldness of an object, measured in degrees

One of three methods of heat transfer from hotter to cooler locations. convection involves the flow of a fluid within a gravitational field, as warmer, less dense fluid is displaced upward by descending, cooler fluid

A model of heat as a material fluid that flows from hot to cold objects. When scientist discovered that it could not explain certain observations they replaced it with the kinetic molecular model of thermal energy and heat.

The study of thermal energy, heat, and their useful applications

One of three methods of heat transfer from hotter to cooler locations involving radiant energy. the process of energy or particles moving directly away from a source

The temperature scale with fiducial points at the freezing 0 degrees and the boiling 100 degrees Celsius of pure water at one ATM of pressure

A temperature scale with the freezing point at 32°F in the boiling point at 212°F

One of the three methods of heat transfer from a hotter to a cooler object. Conduction involves direct contact.

A quantity of thermal energy that flows from one system to another, resulting in a change of temperature or state. It is measured in joules.

The amount of thermal energy absorbed per gram as a pure liquid vapor rises. The same amount of heat program must be released to condense the vapor to a liquid.