6th Practical Lesson: 1P7 Measurement of Time - Pendulum

Today, we had another Science Practical lesson and I could say that I learnt quite a bit from this practical.


First, we started off as usual with gathering our apparatus: 

1. 120 cm thread
2. Pendulum bob
3. Meter rule
4. Split cork
5. Stopwatch
6. Clamps retort stand

Next, we had to read the instructions and follow them to make sure that nothing wrong happens. We had to fix one end of the bob, clamp the other end and firmly between the split cork, making pendulum of length 100 cm. We then had to give the bob a small displacement of about 10 degrees and set it into oscillation. We had to time the period of each oscillation using a stopwatch.

The next experiment was to decrease the length of the string holding the bob by 10 cm each time and observe if there were any differences. The period for 10 oscillations with the decreased length was shorter of course and we had to record our readings down.

After that, we had to plot a graph observing the timing of the periods with the decreasing length.

From this experiment, I learnt quite a few terms like oscillation, period and also tried a split cork for the first time. This Practical lesson was quite interesting and it taught me much too. I am looking forward to the next practical lesson!