Heat Flashcards
What is heat
Heat is a form of energy. It is measured in joules
Where does heat go
Heat always moves from a hot area to a cold area
What is conduction
Conduction is the transfer of heat through a substance with out the particles in the substance moving out of please
What is metal good at
Metals are good conductors
What is a incinerator
And insulator is a substance that does not allow heat to pass through easily insulators are very poor conductors
What is convection
Convection is the transfer of heat through the liquid or gas, when molecules of the liquid or gas move upwards and carry the heat
What is radiation
Radiation is the transfer of heat in rays from a hot objects without needing a medium to pass through
Does a dull, black, surface radiate and absorb heat better than ordinary surface
Yes
What do gases solids and liquids do when heated up
They expand
What temperature must it be for water to start expanding
4°C
Ice is less dense than liquid water and so it floats, why is this important for fish
This is important for fish to expand
Does a dog black surface absorbs heat better go now bright shiny surface
Yes
