heat flows from a warmer object to a cooler object.
force of energy
Condution of heat
force of energy
when heat flows Out of a system
It flows back as heat.
Volcanoes
Heat flows easily in a good thermal conductor.
heat
Heat is energy and cannot be negative, If you are talking about heat flow then if you define outflow to be negative then inflow is positive.
heat flows everything, from a warmer substance to a cooler substance to maintain equilibrium.
It is important how heat flows because if heat didn't flow the way it does it would be to cold and we wouldn't be here.
No heat does not flow from colder to hotter. It flows from hot to cold.