Balance lab Report Example | Topics and Well Written Essays - 250 words

Balance - Lab underwrite ExampleRecord the readingThe Centigram Balance, which gives a reading of 2.3 on weighing the copper slug at one time, has a sensitivity of 0.1 grams, whereas the Electronic Balance which gives a reading of 2.999 for the same slug has a much high sensitivity of 0.001g. It is important to use the same slug for both instrumental roles to make sure that any discrepancy in the readings is due to the instrument being used and not because of a difference in the throne of the copper slug being measured. The Electronic Balance has a higher accuracy. This is further proved by the value obtained for average mass of a copper slug using an Electronic Balance. This value, 2.980, is very termination to the reading 2.989 which was obtained when a copper slug was measured on the Electronic Balance using tilt difference method. The Electronic Balance, due to its high sensitivity and accuracy is more reliable for measurement of tiny masses. The Centigram on the other hand has a much lower accuracy and sensitivity and is thus ill-matched for small masses.Weighing by difference is different from weighing presently because it involves taking two readings and accordingly subtracting the two to get a value for the mass that has to be measured. Weighing by difference gives more accurate results because when the readings are subtracted then any zero error due to wrong calibration of the instrument result be removed from the final reading. In case of weighing a mass directly if the instrument contains a zero error it will show up in the reading obtained which will then be inaccurate.Conclusion This experiment establishes that the use of an Electronic Balance as opposed to a Centigram Balance and the use of weighing by difference technique as opposed to weighing directly produce more accurate