Fluid Friction
Fluid Friction: Overview
This topic describes fluid friction. We know that air is light but yet, air exerts frictional force on objects moving through it. Similarly, water and other liquids exert force of friction when object moves through them.
Important Questions on Fluid Friction
How birds have evolved their shape to fly in the air?
When an object is travelling through a fluid, the frictional force depends upon _____.
To minimise the fluid friction on objects in motion while moving in liquid we can _____.
Suppose Rahul is swimming in a pool of sugar syrup instead of water. What kind of physical forces are acting on Rahul while swimming?
When a machine is operated, the _____ generated causes wastage of energy.
Explain why vehicles are designed to have a specific shape.
Objects moving in fluids does not require a specific shape.
Write the name of the shape of aeroplane for minimising friction.
(Choose from: Streamlined shape/spherical shape)
What is fluid friction? Write the factors on which fluid friction depends.
