The aim of the investigation is to see if giving a coffee cup insulation affects how much heat is lost

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Aim: The aim of the investigation is to see if giving a coffee cup insulation affects how much heat is lost

Prediction

My investigation is to see which will lost the most heat a coffee cup with cotton wool insulation or without any insulation. Heat transfer is a process in which energy in the form of heat energy is exchanged between things at different temperatures. Heat is generally transferred in three ways conduction, convection, and Radiation. This experiment involves heat escaping by all three methods here is a description of each

Conduction

This is where heat energy passes through the sides of the cup by making the particles vibrate and will pass on the vibrations to the next particles causing heat to pass through the sides of the cup and out into the air

Convection

This is where the cooler water particles sink to the bottom and the hotter particles move to the top. Convection will only affect my experiment if a lid wasn’t on. This is because the warm water will float up to the top and heat will escape. If you were heating a pan from below then it will become warm and less dense and they will rise to the top of the pan, as we know that hot air rises.

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Radiation

This is infra red rays vibrating the particles next to them giving them more energy and therefore making the water warmer. The water particles at the top of the pan will radiate the heat into the air.

Factors I will need to consider.

A lid

There will be a great difference in the speed of heat loss if I use a lid. This is because of the large amount that will be lost by convection. Due to this I have decided to do it with a    lid on

Volume of water ...

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