Chapter 13 - Heat And Temperature Flashcards
Temperature
A measure of how hot (or cold) something is; average kinetic energy of the particles in an object.
Thermometer
An instrument that measures and indicates temperature.
Absolute Zero
The temperature at which molecular energy is at a minimum (0 K or -273.16 C).
Heat
The energy transferred between objects that are at different temperatures.
Thermal Conduction
The transfer of energy as heat 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 waves, such as visible light and infrared waves.
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
Form in which radiation is transferred as heat.
Conductor
Material through which energy can be easily transferred as heat.
Insulator
Poor conductors.
Refrigerant
Material used to cool an are or an object to a temperature lower than the temperature of the environment.
Heat Engine
A machine that transforms heat into mechanical Energy, or work.