In term 1 I learned about physics. I had done some experiments on physics and I am going to reflect on 1 of my experiment. This experiment that I had done was an experiment learning and trying the meter rule, vernier caliper and micrometer screw gauge.
In this experiment, I am required to examine the 3 different equipment, on how it is used and how much it can measure, in terms of accuracy and amount. The meter rule could measure up to an accuracy of 0.1 cm and as the name states it, it could measure up to 1 meter long. I am supposed to measure the height of my seat with the meter rule. I took 4 readings from 4 different sides and calculated the average of the 4 readings to get reliability on my results. The result that I got was 60.6cm. This equipment was quite easy to use, therefore I did not meet a lot of difficulty. The only problem I got was to align the ruler parallel to the ground while taking the measurement. I solved this problem by having my friend take the measurement for me while I held the ruler steady and parallel.
The next equipment was the vernier caliper. There is an additional step needed to be taken when using the vernier caliper and that is to check for zero error. A zero error is when the equipment's reading of a zero is not zero but a negative 1 or 1. The smallest reading for the vernier caliper is 0.01cm and it could measure up to 10cm. I am supposed to take the measurements of the internal and external measurements of a beaker. I took 3 readings at 3 different sides and calculated the average of the 3 readings to get reliability on my results. The internal diameter of the beaker after the amendments of the zero error, in this case 0cm, is 3.63cm and the external diameter is 3.96cm. The problem I had with the vernier caliper is to make amendments for the zero error because I was confused whether to + or - but I overcame this problem by memorizing which is + and which is -.
The last equipment is the micrometer screw gauge. There is no zero error, it could measure up to an accuracy of 0.01mm and it could measure up to 5cm. I am supposed to take the measurements of the diameter of a wire and the diameter of a ball bearing. I took 3 different measurements at 3 different positions and calculated the average of the 3 readings to get reliability on my results. The diameter of the wire is 0.84mm and the diameter of the ball bearing 15.72mm. The problem I had with the micrometer screw gauge is to calculate the zero error because I did not know how much to tighten the micrometer screw gauge but I overcame this problem by asking the teacher and getting used to the equipment.
Through this experiment, I learned how to use the 3 equipment, the meter rule, the vernier caliper and the micrometer screw gauge. I also overcame all my problems with the equipments and learned more about the value Resilience from the J-TIGERR.
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