Question

Fluid is a substance that

• A. cannot be subjected to shear forces
• B. always expands until it fills any container
• C. has the same share stress at a point regardless of its motion
• D. takes the shape of the container

Answer 1

The correct option is D takes the shape of the container

A fluid can have different shear stress at a point according to its motion.

Also a gas always expands to fill any container put into, however a liquid does not do so.

Only true statement above is that any fluid, liquid or gas, takes the shape of the container it is placed in.