A sharp point on a pencil will be eroded by a rough surface (paper) and leave a coating of graphite. This does not immediately penetrate the paper and can be erased. After some time, the paper will absorb some graphite molecules into its structure, and erasures will not be complete.
Yes, a pencil needs friction to write. When you apply pressure to the pencil against the paper, the friction between the graphite tip and the paper creates the marks. Without sufficient friction, the pencil would not be able to leave a mark on the surface.
Pencil lead is made of a mixture of graphite and clay, which wears out as you write due to friction between the lead and the paper. The abrasion caused by writing causes the graphite particles to break off, resulting in the lead becoming shorter and duller over time.
Using a pencil involves friction because as you write, the graphite on the pencil's tip rubs against the paper, creating resistance. This resistance generates heat and wears down the pencil tip over time.
The friction created when writing with a pencil is primarily kinetic friction. As the pencil moves across the paper, the tiny irregularities in the paper and pencil lead create resistance that enables the pencil to leave a mark.
Static friction is the type of friction used when writing with a pencil. As the pencil moves across the paper, static friction between the pencil tip and the paper surface enables the pencil to grip and leave a mark.
we to write in pencil
It depends on how long the pencil is, how much you write, and if the pencil breaks a lot or not. If it's a long pencil, it'll last a while unless you write a lot or it breaks.
With pencil you can erase, not with pen.
to write
the function of a pencil is to write with out getting your hands dirty and to be able to write on paper instead of stone.
GeT yOuR pEnCiL tHeN wRiTe.
a pencil helps us to write,draw,shade etc. pencil is very important in our life because when a child starts learning or writing a pencil helps it.
"A new pencil"."A new pencil"."A new pencil"."A new pencil".
It could be a command to "Write with a pencil." Or it could be the statement, "You/he/she/ write/s with a pencil." The context is the determiner.
You can do calculations using a pencil to write on paper!
you write it with ur fkun pencil
a pen or pencil