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Assuming you have a cup of hot cocoa, then the heat transfer is by conduction
Answer #1If the temperature of the spoon is higher than the coffee, the coffee will heat up and the spoon will cool off.If the temperature of the spoon is lower than of the coffee, the coffee will cool off and the spoon will heat up.This is a perfect example of the first law of thermodynamics. The "law of conservation of energy" states that the total amount of energy in an isolated system remains constant; energy can neither be created nor destroyed, it can only be transformed from one state to another.
No. Heat can only be transferred to a cold spoon, not the other way round (as there is no heat in a cold spoon to transfer). A simple example is when a cold teaspoon is used to stir a hot cup of tea. When the spoon is withdrawn, it is hot.
heat energy is basically kinetc energy (movement energy), since heat is the atoms moving about, the atoms in the gas ring crash into the atoms of the spoon, and cause the atoms in the spoon, eventually the energy (movement), will be evenly spaced between all the atoms in the spoon and gas ring, this transferr is like when a snooker ball hits a triangle of the balls and makes all of them move around
Because metals conduct heat really well. Plastics conduct only a little heat with difficulty.
metal radiation transmission
Conduction.
Assuming you have a cup of hot cocoa, then the heat transfer is by conduction
Answer #1If the temperature of the spoon is higher than the coffee, the coffee will heat up and the spoon will cool off.If the temperature of the spoon is lower than of the coffee, the coffee will cool off and the spoon will heat up.This is a perfect example of the first law of thermodynamics. The "law of conservation of energy" states that the total amount of energy in an isolated system remains constant; energy can neither be created nor destroyed, it can only be transformed from one state to another.
No. Heat can only be transferred to a cold spoon, not the other way round (as there is no heat in a cold spoon to transfer). A simple example is when a cold teaspoon is used to stir a hot cup of tea. When the spoon is withdrawn, it is hot.
heat energy is basically kinetc energy (movement energy), since heat is the atoms moving about, the atoms in the gas ring crash into the atoms of the spoon, and cause the atoms in the spoon, eventually the energy (movement), will be evenly spaced between all the atoms in the spoon and gas ring, this transferr is like when a snooker ball hits a triangle of the balls and makes all of them move around
The heat energy is transferred from the hob to the metal spoon through conduction; this is where particles that vibrate a lot due to their heat energy then 'pass on' these vibrations to the next adjacent particle which does the same and so on. Metals are a good conductor of heat so that is why the metal spoon gets hot, however, wood is not a good conductor of heat and so the wooden saucepan handle doesn't get hot.
The heat will transfer to the spoon (if metal).
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Because metals conduct heat really well. Plastics conduct only a little heat with difficulty.