Question

explain why a pencil will write on paper but not on glass​

Answer 1

Answer:

Because of no friction.

Explanation:

We are able to write on paper because there is some friction in between the paper and the pencil and the lead can stick to the paper from the pencil. Glass has very less friction so it can't hold the graphite particles and we can't write on glass.

Hope it helps!

Answer 2

Answer:

Lack of Friction

Explanation:

On paper, the surface is rough for the pencil. Due to Friction, Graphite will break off and write the words we are trying to write. On the other hand, Glass is very smooth and has lower friction than on paper. So,there will be not enough friction for the pencil to write on glass.

Therefore, A pencil will write on paper, but not on glass​.

Hope it helped you!