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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.
Joany Funk
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What is meant by cold?
The absence of heat.
What are the differences between heat and temperature?
Temperature is an indicator of heat or cold. Cold is the absence of heat.
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.
Is 'cold' a kind of energy or is it the absence of heat energy?
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.
Under the anders celsius theory Is there really such a thing as cold?
No. Cold is not a thing. There is heat, and the absence of heat. NO, only a lack of heat
Why is it incorrect to say the insulation 'keeps out the 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.
Why it incorrect to say that insulation keep out the 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.
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.
What is the relationship between coldness and heat?
The definition (at least scientific) of cold is the absence of heat
Do both hot and cold have energy?
Yes (with the exception of absolute zero) but the energy in hot and cold is always heat energy. (Cold is defined as the absence of heat)
when a cold object is touched state whether the heat energy flows from the person's hand to the object or the object to the person's hand and why is it so?
Heat always flows from hot to cold. Cold is the absence of heat.
Which way does heat transfer?
Heat always flows from a hotter object to a colder one. So: Heat 'transfers' from 'hot' to 'cold' (cold being a relative term and considered an absence of heat).
