The answer depends on a variety of variables, but the simplest is that barring further action on the pencil mark (rubbing, wear, etc), it will last as long as the paper.
Mark-making is the process of applying pencil to paper. I would broaden this to include applying anything to anything! (scratching marks in plaster, using pen and ink, paint on canvas, anything that leaves a mark on the page could be considered mark making that's what is so nice about it:o)
pencil
It allows you to mark on glass to label something during a lab and then later wash off the grease.
THe rubber absorbs the pen or pencil mark - hence, the mark is gone! think of blotting a stain from a carpet - the rag or sponge absorbs the stain ...same principle for pens and pencils
The 'h' and 'b' rating combined with a number refer to the hardness of the graphite in a pencil. h-hard and b-soft. So the higher the number the more hard or soft it is. Hard graphite imparts much lighter marks to paper, while softer graphite makes a much darker mark. So a 6b pencil is very soft and draws quite dark while a 6h pencil is very hard and draws very light marks.
When a pencil is rubbed on paper fiction causes a small amount of the graphite from the core of the pencil to be left on the paper. This leaves a visible mark.
The possible problem with erasing a pencil mark with most pencil erasers is that they can leave smudges or residue on the paper, making it look messy or unclear.
A pencil works by leaving a trail of graphite on paper as it is dragged across the surface. The graphite in the pencil is soft and leaves a mark when pressure is applied, allowing for writing or drawing.
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.
Yes, a 3B pencil is darker than a 2B pencil. The higher the number in the pencil grade, the softer the graphite and therefore the darker the mark it will make on paper.
The graphite in a pencil is a form of carbon that is bonded together in layers. It is soft and easily leaves a mark on paper when pressure is applied. Graphite is the material that makes up the "lead" in a pencil, allowing for writing or drawing.
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.
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.
Hold and press the pencil down and drag it across the paper to create friction between the lead and the paper and the lead will produce a mark on the paper which can be rubbed out. You should already know this when you were 5 years old
Pencil tips are typically made of graphite mixed with clay. This combination allows for smooth writing or drawing on paper. The graphite in the tip leaves a mark when it comes into contact with the paper, while the clay helps to hold the graphite together and provide structure. The hardness of the graphite-clay mixture determines the darkness of the mark left on the paper. Overall, the pencil tip's composition and structure play a crucial role in the functionality of a pencil by allowing for precise and controlled writing or drawing.
When you erase a pencil mark, you are observing the effects of friction between the eraser and the paper. Friction is the force that resists the motion of two surfaces sliding against each other. As you move the eraser back and forth over the pencil mark, the friction between the eraser and the paper causes the graphite particles from the pencil mark to stick to the eraser and be lifted off the paper. This process demonstrates how friction can be used to remove unwanted marks or materials from a surface.
A lead pencil can be used to lightly mark chromatography paper to help identify and track samples during the process. However, it is important not to press too hard or use ink as it may interfere with the chromatography separation.