Which travels faster cold or heat

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Email Address. Skip to content Puzzles Solution 2. Danny says:. July 2, at pm. The speed of light as it travels through air and space is much faster than that of sound; it travels at million meters per second or , miles per hour. Heat is a form of energy. The heat energy from the water makes the water molecules in the hot water move faster than the water molecules in the cold water.

The fast moving air increases the rate at which our bodies lose heat due to convection and evaporation. The faster moving air from the fan displaces the warmer air that is in direct contact with our skin. This enhances the rate of convective heat transfer, which means we feel cooler.

When atoms and molecules are jiggling really rapidly in random directions, they feel hot against our skin. The faster the turnover of air molecules bumping against and then moving off our skin, the cooler we become.

Complete answer: The fastest method of heat transfer from hot body to cold body is radiation. We know that radiation occurs at the speed of light and does not require any medium for travelling. It takes place in the form of electromagnetic waves. Heat flows from hot to cold objects. In other words, heat can flow spontaneously from a cold object to a hot object without the need to invest energy in the process, as is required by a domestic fridge.

What question can you never honestly answer yes to? Are you asleep? Water is made of molecules two hydrogen atoms and one oxygen atom stuck together. Molecules in a liquid have enough energy to move around and pass each other.

This is why water can flow and take the shape of the glass you pour it into. Molecules in a gas have lots of energy and spread out even more than molecules in a liquid.