Conduction, Convection & Radiation Flashcards
Radiation is the transfer of electromagnetic radiation, specifically speaking which radiation?
Infra-red
The hotter an object is will it radiate more or less heat energy?
More
convection mainly happens in
liquids and gases
conduction mainly happens in
solids
Indra-red radiation is electromagnetic radiation so it can travel through a…
Vacuum
how does conduction transfer heat
when heat is applied the particles have more kinetic energy so move more. the particles bump into each other, passing on the kinetic energy and hence the thermal energy.
What type of energy radiates through space from the sun?
Thermal
What are the 2 things that the amount of radiation give out by an object depends on
Temperature and surface
What type of surfaces are good absorbers and emitters of radiation
Dark, dull, matt
heat energy always flows
from
regions of high temperature to low temperature
Light shiny surfaces are poor….?
State 2 things
Poor absorbers and emitters of radiation
definition of conduction of heat
conduction of heat is the process where vibrating particles pass on their extra kinetic energy to neighbouring particles
what are the three ways heat is transferred
convection, conduction and radiation
Does heat depend on the mass of a substance?
Yes
