23 September 2019
In our IPC lesson today we became real 'scientists' and carried out an investigation. We learnt all about sound waves and how sound travels. We began by experimenting with the outdoor telephones and discovered we could hear our friends speaking at the other end of the phone as the sound waves travelled along the tube. We then set to work and made our own 'telephones' using cups and string. We used these to talk to our friends and discussed how the sound waves travelled along the string. We also questioned whether the sound quality changed depending on the length of the string?
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