* Size: Larger particles have a higher surface area to volume ratio, making them more susceptible to settling due to gravity.
* Density: Denser materials are heavier and require more energy to keep them suspended.
Examples of materials unlikely to be carried in suspension:
* Large rocks and boulders: These are simply too heavy to be lifted and carried by most fluids.
* Sand: While sand can be suspended in strong currents, it will settle quickly in calmer waters.
* Heavy metals: Materials like gold or lead have a high density and will generally sink to the bottom.
Factors influencing suspension:
* Fluid velocity: Faster moving fluids can carry larger and denser particles.
* Fluid viscosity: Viscous fluids can suspend more particles than less viscous fluids.
* Particle shape: Irregularly shaped particles are more likely to be caught in currents and stay suspended.
Key takeaway: The ability of a material to be carried in suspension depends on a balance between its size, density, and the forces acting on it.
