Chapter 13 Flashcards
Temperature
A measure of how hot or cold something is.
Thermometer
An instrument that measures and indicates temperature
Absolute zero
The temperature at which molecular energy is at a minimum.
Heat
The energy transferred between objects that are at different temperatures.
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 transferred as heat in the form of electromagnetic waves.
Specific heat
Describes how much energy is required to raise an objects temperature. Defined as the quantity of heat required to raise a unit mass of homogeneous material 1K or 1 degrees C.
Electromagnetic waves
Energy that is transferred as heat from an object infrared radiation, visible light, and ultraviolet rays.
Conductor
A material in which energy can be easily transferred as heat.
Insulator
Poor conductors that are used to reduce energy transfer.
Refrigerant
Causes cooling
Heat engine
A device that produces power from heat gasoline engine or steam engine.
