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The increased heat sends a nerve impulse from the burning area to the spine. Here the somatosensory neurone (the one conveying the heat) activates a motor neurone (one which initiates movement). This motor neurone sends an impulse to the muscle controlling the hand, making the muscle contract and making the hand move away from the heat source.

At the same time, the somatosensory neurone also sends a message to the brain, which is percieved as pain (hence why burning yourself hurts).

Inflammation may occur in the burnt tissue as a response, increasing fluid levels in the damaged tissue, producing a blister. This helps the damaged tissue to heal.

The actual mechanisms of these events are ridiculously complex, this is a simplified version.

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13y ago
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15y ago

Conduction, mostly, though radiation plays a part in it. Just before you touch it you can usually feel the radiation and convection with the air between your hand and the hot thing. If you're lucky enough to work in a vacuum someday you will be able to feel radiative heat from a hot thing by itself, a very unique experience.

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10y ago

When a person touches a hot object and withdraws their hand from it without thinking about it, the heat stimulatestemperature and danger receptors in the skin, triggering a sensory impulse that travels to thecentral nervous system. The sensory neuron thensynapses with interneurons that connect to motor neurons

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6y ago

If you do not touch it, by radiation.

If you touch it then by radiation and conduction.

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Q: How does a warm rock transfer thermal energy to your hand?
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What is the relationship between potential energy and thermal energy?

Hold a rock in the air ... it has potential energy. Drop it ... the potential energy will be converted into kinetic energy. It hits the ground and stop ... the kinetic energy will be converted into thermal energy. Note that the total energy in each case is the same.


What is the difference between an energy transfer and an energy conversion?

energy transfer and energy transformation are different.energy transfer refers to the transfer of energy from one body to another, like energy travelling from one place to another. when we place our hand on a hot iron rod,heat energy is tansfered from the rod to our hand.on the other hand energy transformation means the energy gets converted to another form of energy,much like mechanical energy becoming electrical energy in the case of wind mills.


Does rock transfer heat rapidly?

Depends on the type of rock. The thermal conductivity of most rocks range from 1 to 5 W/mK. (watt per meter kelvin) Compared to other things: Copper, a good conductor, its +-390 W/mK . PUR foam, a good insulator, its +-0,03 W/mK . So to answer your question: heat goes through rock, but not rapidly.


Use the law of conservation of energy to describe what happens to the potential energy of a rock when it is dropped from your hand and strikes the ground?

While falling, potential energy gets converted to kinetic energy (movement energy). Some gets lost to air resistance - that gets converted to heat. Once the rock hits the ground, most of the kinetic energy will be converted to heat.


Is it possible at least theoretically to have a system which allows the transfer of matter but not energy?

Probably not, as all matter has an energy component associated with it, even when it is at apparent rest. For example, a 1kg rock at Earth's equator is really moving at about 40 000 km/day; and if we consider the motions of the Solar system, and of our Galaxy, then the energy of that apparently stationary rock is quite great.

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Thermal energy (heat) and pressure or stress (which is also a form of internal energy of a system and is a form of potential energy).


Sedimentary rock is converted into metamorphic rock with the addition of what?

Sedimentary rock is converted into metamorphic rock with exposure to heat, pressure, heated mineral solutions, or a combination of any of them.


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What is the initial transfer of energy that accelerates the rock down the side of the mountain?

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Are slow movements of mantle rock called radiation heat transfer?

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