A cup of coffee is an example of convection because the heat from the water warms up everything in the cup and all the atoms are bouncing off the cup[ in the coffee] of coffee because the coffee is hot.
Convection
Heat transfers. The hotter loses heat energy to the cooler.
Heat can beradiated,conducted or travel byconvection or a combination of these three.The base of the cup would conduct the heat to the surface it is sitting on and the body of the cup would radiate the heat and the air in the freezer would transfer the heat by convection currents.
The inventor is not known. The coffee cup band is pictured in prehistoric cave paintings in Southern France and Northern Spain. When cups were chiseled out of stone, the heat from the coffee would transfer directly into the hand. Cavemen wove the bands out of palm leaves and wrapped them around their coffee cups.
A glass cup will conduct heat away quickly - a plastic cup would hold heat the best.
A cup of boiling water since it has higher temperature. Note that heat transfer depends more on the temperature.
Conduction if the spoon is a conductor
Heat can easily penetrate single items. When cream is added to coffee then there is more matter to penetrate before the coffee is cooled.
Heat transfer to cups (or other solid objects) happens on a molecular level; fast moving hot molecules (perhaps in your hot coffee) collide with slower moving cold molecules (in your cup) and speed them up, giving up some of their own momentum.
A cup of boiling water since it has higher temperature. Note that heat transfer depends more on the temperature.
A cup of boiling water since it has higher temperature. Note that heat transfer depends more on the temperature.
bomb calorimeter measures heat transfer at constant while the cup measures at constant pressure.
From the fire the transfer is by radiation. From the coffee cup to Megan's hands the transfer is by conduction