Question

What do you understand by the term streamlining?

Answer 1

Streamlining:

1. Designing a body in such a way that it comes in minimum contact with air or water to ensure that the body experiences minimum frictional force, is called streamlining.
2. The frictional force is very less for streamlined bodies which is why many aeroplanes, ships and rockets have round shapes in the front and narrow at the back.
3. Also whales and birds have a natural streamlined body by virtue of which they move easily in water and air respectively.