Friction is also offered by the fluids like air and water. The force of friction offered by the fluids is called the fluid friction. Liquids and gasses are considered as fluids a sthey do not have a fixed shape and they can be deformed easily. Fluid resistance is also referred as drag.
Factors Affecting Fluid Friction
- Nature of fluid: it is difficult to move through water when compared to air as water offers more
The term which describes a fluid’s resistance to flow is called viscosity. Thus, we can say that water is more viscous than air. Higher the viscosity more will be the resistance offered by that fluid. Similarly, honey is more viscous than water, which is why it offers more friction than water.
- Speed of the object: higher the speed of the object moving through a fluid, greater will be the frictional force acting on
A vehicle travelling at 100 miles per hour will face more drag of air as compared to a similar vehicle travelling at 50 miles per hour.
- Shape of the object: it plays an important role in determining the friction experienced by the object. This process of giving an object a particular shape to decrease the fluid friction experienced by it is known as
Aeroplanes are streamlined to have a shape like a bird whereas ships are streamlined to have a shape like a fish.
A car faces lesser friction from air as it has a streamlined shape. A bus on the other hand will
face more air friction as it doesn’t have a streamlined shape.
Summary
| Fluid Friction | The force of friction offered by the fluids |
| Â
 Factors affecting Fluid Friction |
|
Also Check: