Hypothesis through research Essay

Introduction This investigation aims to find the value of Youngs Modulus for a specific literal, in this case nylon fishing line. Youngs Modulus (E) is a measure of a materials stiffness, determined by the formula The standard unit of measure for Youngs Modulus is the pascal (Pa). 1 pascal is the analogous measure as 1 Nm-2 (Nm being Newton Metre). A material always retains the same Youngs Modulus value regardless of how much it is stretched or funded, and this should be revealed in this investigation by gathering a definite value of the modulus for nylon.Hypothesis Through research that I conducted in front starting the investigation, I have determined that the correct Youngs Modulus value of Nylon lies in the range 1-7GPa (the large range being payable to different attract-ups of Nylon with it being a compound). I should therefore be expression at achieving a final result within or very(prenominal) close to this range. Since stress is proportionate to word form in the Yo ungs Modulus formula, and the modulus value remains the same, I would expect the value of stress and strain to proportionally increase with individually other.Experiment Plan In tack to carry divulge this investigation into the value of Youngs Modulus of nylon, I result conduct an test to gather the values of stress and strain when increasing force is added to the material, and go away take readings as pack increases until the falling out lodge of the nylon is reached. In order to calculate stress and strain, I go out hire to record each of the following variables throughout the experiment might applied to the material F (Newtons/N) Area of a give chase-section of the material A (Metres-squared/m2). real length of the material Lo (Metres/m) Amount of extension when the force is applied L (Metres/m) These variables exit then allow the values of stress and strain to be careful utilise the following formulas This leads to a final Youngs Modulus slowness formula of The set-up I will be victimization to carry out this experiment consists of the nylon fishing line suspended from a stand using a clamp, and another clamp to ensure there is no reason in the stand itself.I will create a adequate loop at the bottom of the hanging material so that weights dope be added but will need to ensure this loop does not weaken all area of the material and cause a deteriorate in the breaking point value, as this would compromise the reliability of my experiment and result in premature breakage of the length of nylon. At each stage of the experiment I will take readings of length using a standard 1m ruler, and will measure the area of a cross section by gathering the diameter value using a micrometer, halving this value to gather radius and then use the formula.Before any weights are added, I will need to take a reign over measurement of the length and area of the nylon before any stress or strain is applied. Once this is done I will proceed to give weight in intervals of 100g (0. 981 N) and record the values of each variable verbalise at bottom of the previous page after each 100g weight is added, with the exception of original length which is a constant value and single needs to be recorded at the beginning of the experiment. I will continue to add weights until the material reaches its elastic limit and snaps, at which point I will record the force applied to break the object.In order to achieve an adequate number of results from each experiment to make a fair analysis and conclusion to the investigation, I will need to take a minimum of eight readings (i. e the nylon should withstand at least 800g/7. 849N). If this fails in the actual experiment then I will need to re-evaluate my plan and decide on a new regularity of conducting the experiment to meet this criteria. To increase reliability, accuracy and to eliminate possible absurd results, I will aim to repeat the entire experiment trio times to gather average readings.