why when mix corn flour will water in a particular manner the substance that we get is very difficult like when we slowing keep our hands it sinks but when we punch or do something hard and fast it behaves like a hard solid
Answers
Answer:The cornstarch and water mixture acts like a solid sometimes and a liquid at other times. This concoction is an example of a suspension (a mixture of two substances), one of which is finely divided and dispersed in the other. In the case of the cornstarch quicksand, it’s a solid dispersed in a liquid.
When you slap the cornstarch quicksand, you force the long starch molecules closer together. The impact of this force traps the water between the starch chains to form a semirigid structure. When the pressure is released, the corn- starch flows again.
All fluids have a property known as viscosity—the measurable thickness or resistance to flow in a fluid. Honey and ketchup are liquids that have a high resistance to flow, or a high viscosity. Water has a low viscosity. Sir Isaac Newton said that viscosity is a function of temperature. So, if you heat honey, the viscosity is less than that of cold honey. The cornstarch-water mixture, and real quicksand, are both examples of non-Newtonian fluids because their viscosity changes when stress or a force is applied, not when heat is applied.
Explanation:
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