Fluid FAQs:

Q: Is fluid a substance that continually deforms under an applied shear stress?

A: Yes.

Q: Are fluids substances that have zero shear modulus or?

A: Yes, and in simpler terms, a fluid is a substance which cannot resist any shear force applied to it.

Q: Is fluid not entirely obvious?

A: Yes.

Q: Are fluids a subset of the phases of matter and include liquids?

A: Yes, and gases, plasmas, and to some extent, plastic solids.

Q: Are fluids fluid mechanics?

A: Yes, and which is subdivided into fluid dynamics and fluid statics depending on whether the fluid is in motion.