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Physics/Mechanics Writing Notes (Weight (The weight of the pen is being…
Physics/Mechanics
Writing Notes
Air Resistance
There is air resistance as I move my pen along the paper as it cuts through the air.
This could be reduced by using a more aerodynamic pen that can move through the air more easily. A racing pen.
Friction
The friction comes from the pen being dragged along the page as I write my notes.
Friction could be reduced by using a smoother ink and making the writing more smooth.
Friction occurs when an object moves against another object . Friction acts to oppose the movement of an object.
Weight
The weight of the pen is being used to put ink on the paper. My hand is supporting the pen to make sure it retains the correct position upright, so I can write
Weight can be calculated using the formula F=mg. Measured in N (Newtons)
The weight and the support of my arm needs to be balanced in order for the pen to stay upright. If the forces were unbalanced, the pen would fall onto the page.
Weight is the measure of the force on an object and is cause by the effect of gravity
Pressure
The amount of force pushing down on the page is centred on the tip of the pen. This makes sure that the ink is transfer onto the paper.
If the ball point was larger, the force would be more spread out, but due to friction, the larger area would make it harder to move while writing
Pressure is the amount of force put into a particular area. The smaller the area, the more focused the force is.
