Friction is present in every aspect of the world where two objects move past each other. In some cases, they are useful and almost indispensable, like helping us walk, or letting cars slow down. In others, they are a nuisance, especially in motors and other mechanical applications which try to reduce friction as much as possible. However, it is an essential phenomenon to consider, especially in the design and construction of heavy machinery, cars, airplanes, and even robots. The heat has also been important to mankind since the beginning. It helps us keep warm and cook food. In this paper, I aim to test the effect of friction on heat generation between two surfaces. Research Question: How do the materials or surfaces involved in friction affect the heat generation due to friction from a grinder with surface velocity 26.3 ms-1 and an external force of 0.37N?