Your work on pearl pendulum has been received and everything looks very good, except that one bit of information seems inconsistent.
The bracket is only about 10 cm high. You reported a length of 180 mm (that would be 18 cm), and the times you reported are consistent with a pendulum about half that length. Is it possible you made an error in measuring the length?
Please let me know if you have any questions related to this orientation assignment.
The sounds gets further apart until they stop. The pings of teh pearl against the metal bracket became further apart.
The sounds (dings) of the pearl hitting the metal bracket get closer and closer together until they stop.
I did the process about eight times before I could get a steady rhythm between each hitting of the pearl against the bracket. On average, the perl struck the bracket about 16 times on a five trial basis. I had to put an envelope under the bracket to steady it and make it level.
With the bracket parallel to one of the sides of the book, the pendulum sounds became closer together.
With the base on the bracket 45 degrees counterclockwise, the sounds of the pearl hitting the bracket become faster while getting closer together; however, the sounds are not as fast as the bracket parallel ot one side of the book.
When rotated 90 degrees, the sounds remain constant as when rotated to 45 degrees.
When the bracket is rotated to a 135 degree angle, the sounds of the pearl hitting the bracket get considerably slower.
With the bracket rotated 180 degrees, the the sounds get even slower, the slowest yet.
When rotated to 225 degrees, the sound of the pendulum hitting the bracket speeds back up, but slows way down at the end before stoping.
When the bracket is rotated to 270 degrees, the sound of the pendulum hitting the bracket speeds up to a constant speed before stoping.
With the bracket rotated to 315 degree angle, the sounds of the pearl itting the bracket speeds up really fast, and the sound gets closer together again.
Back at the original position, I did not swing the pendulum again.
I would orient the bracket to a 90 degree angle from its original position to ontain a regular beat of the pendulum.
Trial 1: .313, .297, .281, .297, .297, .281, .328, .318
Trial 2: .203, .234, .266, .25, .359, .234, .266, .275
Trial 3: .203, .234, .300, .300, .300, .313, .25, .25
Trial 4: .25, .375, .266, .344, .344, .300, .344, .375
Trial 5: .313, .266, .344, .281, .300, .300, .266, .328
Trial 6: .312, .281, .300, .234, .313, .313, .25, .288
Trial 7: .281, .313, .375, .300, .313, .300, .344, .360
Trial 8: .281, .281, .300, .390, .156, .25, .300, .266
Trial 1: .634, .659, .828, .875
Trial 2: .659, .659, .822, .838
Trial 3: .625, .859, .688
Trial 4: .703, .810, .703, .800
The length of the pendulum is 180 millimeters.
.09, .01, .05
It was pulled taughntly at the farthest length back away from pendulum. It was released and bounced back.
It did not bounce back as far.
It did not bounce back as far again, because it coming closer to a stop.
This is the closest interval because the pearl is coming even closer to a stop. It does not bounce back as far.
It is moving quicker because is has more momentum at first.
We would expect them to decrease because the pearl would be coming closer to a stop.
This experiment supports the evidence against the hypothesis that the length of a pendulum's swing depends only on its length, and is indepedent of how far it actually swings because it swings only as far as the string will allow, no matter how long or short the string is. We lengthed the string during this experiment and the two factors are in fact dependent of each other.