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Hot and cold are used as comparatives. Almost anything can be hot or cold depending on what you compare it to.
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∙ 14y ago
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What is the problem for heat cold and microorganisms?
what is the promble for heat, cold microorganisms
Why is it incorrect to say that insulation keeps out cold?
Because in science, cold doesn't exist. You can't make cold, you can only remove heat. But in human language we've made words to describe the absences too. Dark is the absence of light. Cold is the absence of heat. Vacuum is the absence of all material. So insulation can't keep the cold out, since the cold doesn't exist. What you can do though is keep the heat in. Heat is a real thing. You can make heat.
When you dip your hand in cold water you feel it cold. Can you name the mode of heat transfer and its direction?
This type of heat transfer is called conduction. The transfer is from the warm hand to cool water.
Does Heat flows from cold to hot or hot to cold?
Heat can usually be considered as the energy of motion of atoms and molecules. Heat can flow spontaneously only from warm to cold. Heat can be made to go in the other direction, but only by doing work. So, the simple answer is: from warm to cold.
What way can heat never flow?
From cold to hot.
What are the differences between heat and temperature?
Temperature is an indicator of heat or cold. Cold is the absence of heat.
What is the problem for heat cold and microorganisms?
what is the promble for heat, cold microorganisms
Does cold objects have heat energy?
cold objects do have heat energy.
Does cold rise and heat sink?
No, cold sinks and heat rises.
Firstaid on heat and cold waves?
first aid for heat & cold wave
How the rocks can resist the heat and cold?
A Rock contracts with cold, and expands with heat.
Do you apply heat or cold to a tired sore eye?
Heat for tired cold for swollen heat or cold for sore, let your gut tell you on that one.
Is heat the absence of cold or is cold the absence of heat?
There is no such thing as "cold" - it's just a concept/term for the absence of heat. Heat and cold are opposite sides of the same coin. You cannot have one without the other. In this sense it is part of any 'heat' engine.
Does heat chase cold?
Heat is real. Cold is just a human concept for it's opposite. Cold does not exist.
What is source of cold?
Cold is the absence of heat. No doubt about it . . . take away enough heat, and you can make anything cold.
Can heat and cold receptors judge actual temperature?
There are only heat receptors. "Cold" is a low level of heat.
Is heat or cold bad for the plant?
Yes, extreme heat or cold can damage a plant.
