Temperature is the amount of kinetic energy in a system. Are we feeling the force of the molecules hitting our skin when we detect something as being hot? Do we feel the kinetic energy in our skin decreasing when something feels cold? What do we actually feel when we detect temperature differences between our bodies and the objects with which we come into contact?
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Heat/cold is transferred via matter. Different states of matter conduct heat better than other. Say when you go outside and touch a metal pole it feels really cold even though it’s the same temperature as the air, but metal conducts heat really well. Air conducts heat less than metal and is a great insulator because of that. Liquid transfers heat much better than air.
There does have to be physical contact with matter to conduct heat transfer.
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