Drone Pilot Practice Exam

What is the typical movement speed of a cold front?

1. Slower than warm fronts

2. At the same speed as warm fronts

3. Faster than warm fronts, about 25-30 mph

4. Variable speed

The correct answer is: Faster than warm fronts, about 25-30 mph

The typical movement speed of a cold front is indeed faster than that of warm fronts, typically ranging between 25 to 30 miles per hour. Cold fronts tend to move more quickly because of the denser, cooler air they carry, which displaces the lighter, warmer air more rapidly. This contrast in air density contributes to the more vigorous lifting of the warm air, leading to sharper weather changes associated with the passage of a cold front. In contrast, warm fronts generally move more slowly, typically around 10 to 25 miles per hour. This slower movement is due to the gradual rise of warm air over the cold air mass, resulting in more gradual and extended weather changes. The option regarding variable speed might imply that the speed can fluctuate, but the characteristic behavior of cold fronts is generally consistent in terms of their higher speeds compared to warm fronts.