Why temperature drops faster at the beginning?

Temperature drops faster at the beginning of a cooling process due to the greater temperature difference between the object and its surroundings. According to Newton's law of cooling, the rate of heat loss is proportional to the temperature difference; thus, a larger gradient leads to a quicker rate of heat transfer. As the object's temperature approaches that of its environment, the rate of cooling slows down, resulting in a more gradual temperature decline over time.