The concepts of heating up of an object due to the transfer of kinetic energy of air particles in an air flow to the object set the foundation to this investigation. This Extended Essay intends to investigate the answer of the question: What is the relationship between different speed of wind blown to an object and the difference between stagnation temperature of the object and the room temperature? In this investigation, I hypothesize the relationship between the two variables by examining the principles of aerodynamic heating.
The experiment was conducted with a fan to produce 11 different wind speeds between 0.9 m/s to 8.4 m/s and the use of the temperature probe as the object is to record the temperature changes directly thus obtaining accuracy of dependent variable and it was put in a self-made wind tunnel over a period of time period of 900 seconds.
The result shows that over a period of 900 seconds, the temperature of the object does reach stagnation temperature. The result of the experiment was compared to the theoretical calculation of aerodynamics heating and the result obtained from this experiment are very close to those predicted by the theoretical calculation.
The conclusion reached from this investigation is that the difference between stagnation temperature and the room temperature is proportional to the square of the wind speed with the formula,
This experiment result can be used to calculate the stagnation temperature of any moving object. Though this investigation is conducted with wind speeds between 0.9 m/s to 8.4 m/s, it does affirm the hypothesis and the equation obtained can serve the basis for further investigation with higher wind speeds.

Grade: A