Question

When you write on a piece of glass sheet with a piece of chalk ,the writing is not clear . Why ?

Answer 1

Answer:

because glass sheet has no friction

Answer 2

Answer:

Explanation:

The glass sheet is a smooth surface. The friction that a piece of chalk faces on a glass sheet is much lesser than what it may face when used to write on a board. Hence, the writing is not clear in the case of a glass sheet when used as a writing surface.