How do objects heat and cool? Comparing natural and forced convection

In the present experiment, we heat an object and observe how it cools with time and what factors affect the cooling rate. In one part, we allow the object to be cooled with the help of forced air currents and in the other, the air currents are switched off. We will also learn how to use the thermocouple, an important component of numerous industrially important processes. We will also observe that heating an object does not instantaneously raise its temperature, rather it changes only gradually.