After an interesting and informative assembly from two police officers on road safety, Mozart class returned back to conduct an exciting science experiment. We have been learning about how sounds are made and how the vibrations that cause sounds travel to our ears as sound waves. Yesterday, we explored how the pitch of a sound can be changed and what causes this to happen. Using different sized containers and elastic bands, we put the elastic bands around the containers and listened to the noise that was created when we plucked the elastic band. We discovered that the elastic band around the larger container made a deeper sound, whereas the smallest container made the highest pitched sound. We discussed how the pitch of a sound depends on the type of sound waves created. Have a look at the video links to remind yourselves about some of the things we have learnt about so far.
How are sounds made? https://www.bbc.co.uk/bitesize/topics/zgffr82/articles/zstr2nb
How are sounds detected? https://www.bbc.co.uk/bitesize/topics/zgffr82/articles/zx9hcj6