Basic

Basic

Purpose: The objective of this experiment is to measure out the mount, thickness, diameter, radius, volume, engrossment of a penny whether it was produced in the lead and after 1982. The accepted density for before 1982 penny is 6.91 g/ cm3 and for after 1982 is 7.18 g/ cm3. The penny that was apply in this experiment was a 1985 penny thus we would occasion the after 1982 density accepted to calculate the percentage error.
The causality why we are measuring the pennies because, before 1982 pennies were made of 95% fuzz and 5% zinc but copper became big-ticket(prenominal) and it would cost more than to make pennies then what its value is worth. therefrom the government changes the materials of the pennies by using ab out 97.5% zinc and 2.5% copper to save the cost of using copper. By changing the materials that were utilise to create the penny it change the weight a little. To uprise the density of a penny we would have to figure out the mass and divided the volume of the penny to get the density calculation. The tools we would be using are the vernier scale, meter outfox to find the diameter, radius and the thickness and a triple irradiation scale to measure the mass.
To determine the mass of the penny we employ the triple beam scale to weight it twice and conk out the first cartridge clip it weight about 2.5 gram.



thence the stand by time it weight same as the first time around 2.6 gram. To calculate the average of the mass we add the touchst one and only(a) of both mass and divide it by two. The average of the mass was 2.55 gram. Next we need to determine the thickness of the penny where we measure it twice. Using the vernier scale by inserting the penny in the midst of the vernier we measure it about 1.5 mm or converting it into .15cm. Then the second time we got close to .15 cm. The thickness average is .15cm. Since the penny is a shape of cylinder we would use the cylinder volume, V= (?r2 h).To find the radius, we need to determine what is the penny diameter because one diameter = 2 radius. Using the vernier scale to calculate...If you pauperization to get a full essay, order it on our website: Orderessay



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