Today, the children had their first experience of using data loggers to accurately measure something. They worked in groups in science to carry out an investigation to find out how the loudness of a ruler depends on how far over the edge of a table it is. They used the data loggers sensibly to record the loudness of sound the ruler made when it was pulled down over the edge of the table, making it vibrate.
They discovered that when the ruler was only off the table a small amount it made a loud sound and when it was quite far off the table it made a quiet sound. As a class we decided that this was probably down to the ruler being able to vibrate more against the table when the ruler was only a small amount off it.
AND as we discovered the previous week vibrations are what make sounds.
AND as we discovered the previous week vibrations are what make sounds.
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