Final answer:
Hydroplaning is the situation in which the tires lose contact with the road surface and ride on the film of water, causing a loss of traction and control.
Step-by-step explanation:
The situation in which the tires lose contact with the road surface and ride on the film of water is called hydroplaning. Hydroplaning occurs when there is a thin layer of water between the tires and the road, causing a loss of traction and control. This can be dangerous as it reduces the ability to steer, brake, and accelerate effectively.