Because the solid can be made to flow, or move so it is called as fluids
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Solids are not called fluids because solids have a fixed shape and volume, while fluids can change shape and flow to fill the container they are in. Solids have particles that are tightly packed together and vibrate in place, whereas fluids have particles that are able to move past each other.
Fluids can flow and take the shape of their container, while solids have a fixed shape and volume. The particles in fluids are not tightly packed and can move past each other, whereas the particles in solids are closely packed and vibrate in place. Examples of fluids include water and air, while examples of solids include wood and metal.
Both liquids and gases are considered fluids because they can flow and take the shape of their container. In a broader sense, a fluid is defined as any substance that can deform under an applied shear stress. This includes both liquids and gases, which exhibit fluid-like behavior.
Both liquids and gases are called fluids because they can flow and change shape easily, taking the shape of their container. They exhibit fluidity in their behavior, which distinguishes them from solid materials.
Sound can travel through solids, liquids, and gases. In solids, sound travels through vibrations of particles, while in fluids (liquids and gases), sound travels through compressions and rarefactions of the medium.
No, heat transfer by convection requires the movement of fluids to transfer heat. Since solids do not have the ability to flow like fluids, heat transfer by convection does not typically occur in solids. Heat transfer in solids usually occurs through conduction, where heat is transferred through the vibration of particles.