Plastic is an example of a(n) ________________________________________________________________.(1 point) Responses crystalline solid crystalline solid high viscosity liquid high viscosity liquid fluid fluid amorphous solid
amorphous solid
Plastic is an example of a(n) amorphous solid.
Plastic is an example of an amorphous solid.
To understand this, let's break down the options:
- Crystalline solid: Crystalline solids have a highly ordered, repeating molecular structure, like salt or diamonds. Plastic does not have this highly ordered structure, so it's not a crystalline solid.
- High viscosity liquid: High viscosity liquids have a thick, sluggish flow, like honey or syrup. While some plastics can be melted and have a viscous flow, plastic in its solid form does not have the characteristics of a liquid.
- Fluid: Fluids refer to substances that can flow, like liquids or gases. Plastic, in its solid form, does not flow like a liquid, so it is not a fluid.
- Amorphous solid: Amorphous solids lack a regular, repeating pattern in their molecular structure, unlike crystalline solids. Plastic is formed by cooling a molten polymer, which results in a random arrangement of polymer chains, giving it an amorphous structure. Therefore, plastic is categorised as an amorphous solid.
So, the correct answer is "amorphous solid".