Chapter 6 Flashcards
Thermal expansion
The increase in volume of a substance because of an increase in temperature
Absolute zero
The lowest temperature on the Kelvin scale
Heat
The energy transferred between objects that are at different temperatures
Thermal energy
The total kinetic energy of the particles that make up a substance
Thermal conduction
The transfer of thermal energy from one substance to another through direct contact
Thermal conductors
Substances that conduct energy very well
Thermal insulators
Substances that do not conduct thermal energy very well
Convection
The transfer of thermal energy by the movement of a liquid or a gas
Radiation
The transfer of energy by electromagnetic waves, such as visible light and infrared waves
Specific heat
The amount of energy needed to change the temperature of 1 kg of a substance by 1 degree celcius
States of matter
Physical forms in which a substance can exist
Change of state
A change of a substance from one state of matter to another
Insulation
A material that reduces the transfer of thermal energy
Heat engine
A machine that uses heat to do work
Thermal pollution
The excessive heating of a body of water
