Chapter 13 Flashcards
Temperature
The measure of how hot or cold an object is.
Thermometer
A device used to measure the temperature of an object.
Absolute zero
A temperature in which the molecular energy is at a minimum on the Kelvin scale.
Thermal conduction
The transfer of energy as heat through a material
Convection
The movement of matter due to differences in density that are caused by temperature variations.
Convection current
The vertical movement of air currents due to temperature variations.
Radiation
The energy that is transferred as electromagnetic wave.
Specific heat
The quantity of heat required to raise a unit mass of homogeneous material 1 K or 1 C in a specified way given constant pressure and volume.
Electromagnetic waves
Energy transferred as heat that include infrared radiation, visible light, and ultraviolet rays.
Conductor
Any material though which energy can be easily transferred as heat
Insulator
Poor conductors.
Refrigerant
A material used to cool an area or an object to a temperature that is lower than the temperature of the environment.
Heat engine
A machine that transforms heat into mechanical energy, or work.
Heat
The energy between objects that have different temperatures.
