Final Answer:
A slippery sheet is a potential characteristic of ice.
Step-by-step explanation:
Ice is a solid form of water that occurs when the temperature drops below freezing point. It is well-known for its slippery nature, making it a potential characteristic of a slippery sheet. When a sheet of ice forms on a surface, such as a road or a sidewalk, it can become extremely slippery and pose a hazard to pedestrians and vehicles.
The slipperiness of ice can be attributed to its molecular structure and the presence of a thin layer of liquid water on its surface. At low temperatures, water molecules arrange themselves in a hexagonal lattice structure, forming ice crystals. The smoothness of this crystal lattice, combined with the presence of liquid water on the surface due to melting, creates a slippery sheet of ice.
When pressure is applied to an ice sheet, such as the weight of a person’s foot or the tires of a vehicle, the pressure causes the ice to melt slightly. This thin layer of liquid water reduces the friction between the ice and the object, resulting in a slippery surface. The more pressure applied, the more melting occurs, further increasing the slipperiness.
It is important to exercise caution when encountering a slippery sheet of ice to prevent accidents and injuries. Taking measures such as wearing appropriate footwear with good traction or using anti-skid devices on vehicles can help mitigate the risks associated with icy surfaces.