When I first read the title, I thought WOW! MEASUREMENT OF TIME!! I felt that it was something that was quite cool, then I read the rest of the title, pendulum, 'cheh'.
Basically, in this practical worksheet, we had to build our own pendulum.we clamped a split cork onto the retort stand, then we attached a piece of string to it and tied a bob which was a marble. Then we shortened the string and we timed the bob as it went forward and backwards back to the person to let the bob go using a stopwatch. We measured from 100cm ~ 50 cm. We concluded the the longer the length of the pendulum, the longer the period of the time taken. We had to be careful about the length of the string and the angle of the pendulum swings. We also made a graph about our results.
Many things in our daily lives uses pendulums. The metronome of the piano thing uses a pendulum and even my old grandfather clock uses a pendulum. This chapter was slightly interesting as we used the meter rule and pretended we were characters from star wars although we are not supposed to do so! XD
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