Chapter 9 Heat and Heat Technology Vocab
A measure of the average kinetic energy of the particles in an object.
The increase in volume of a substance due to an increase in temperature.
The lowest temperature on the Kelvin scale is O K.
The transfer of energy between objects that are at different temperatures.
The total kinetic energy of the particles that make up a substance.
The point when both objects reach the same temperature.
The transfer of thermal energy from one substance to another through direct contact.
Substances that conduct thermal energy very well.
Substances that do not conduct thermal energy very well.
The transfer of thermal energy by the movement of a liquid or a gas.
The transfer of energy through matter or space as electromagnetic waves.
The rate at which a substance conducts thermal energy.
Specific Heat Capacity
The amount of energy needed to change the temperature of 1 kg of a substance by 1° C.
Is used to find the specific heat capacity of a substance.
States of Matter
The physical forms in which a substance can exist.
Change of State
The conversion of a substance from one physical form to another.
Liquid to solid
Solid to liquid
Liquid to gas
Gas to liquid
Is similar to a hot-water heating system, except that steam is used.
A substance that reduces the transfer of thermal energy.
Passive solar heating systems
DO NOT have moving parts. They rely on a building's design and parts.
Active solar heating systems
Do have moving parts. They use pumps and fans to distribute energy throughout the building.
A machine that uses heat to do work.
Process of how engines burn fuel.
External combustion engines
Heat engines that burn fuel outside the engine.
Internal combustion engines
Heat engines that burn fuel inside the engines.
The excessive heating of a body of water.
Can cause thermal energy to be absorbed or released.