Topic 3 Flashcards
Energy transfer
the transfer of heat through a solid, liquid or gas by direct contact.
conduction
The transfer of heat from a warmer region to a cooler one by moving warm liquid or gas from the heated area to the unheated area.
convection
The transfer of energy through air and space by light waves (visible, ultraviolet and infrared waves).
Radiation
Visible light
Contains higher amounts of energy
E.g. Sun’s radiation
Shortwave radiation
Infrared light
Contains smaller amounts of energy
E.g. Earth’s radiation
Longwave radiation
The amount of energy that is reflected by a surface is determined by the reflectivity of that surface
Albedo
white reflects most of light that hits it, and indicates that?
high albedo
dark absorbs most of the light that hits it which indicates that?
low albedo
The process of evaporating water from leaves through plant transpiration during photosynthesis
evapotranspiration
Responsible for 15% of the atmosphere’s water vapor.
evapotranspiration
As temperature increases, the rate of evapotranspiration?
Increases rate of evapotranspiration
If the air around the plant is too humid, the transpiration and evaporation rates?
evapotranspiration rate drops
If the air is moving, the rate of evaporation will?
will increase
If the soil is dry and there is no standing water, there will be?
no evaporation
For areas where the ground is covered by vegetation, the rate of transpiration is considerably ____ than the rate of evaporation from the soil
higher than the rate of evaporation from the soil
