We have been learning about sound and how it travels. We learnt that sound is started by the vibration of something such as a bell. The vibrating bell makes the air around the bell vibrate as well, and it keeps vibrating out in waves until it hits our ears. The waves are a bit like dominoes, a Mexican wave or when you pulse a slinky. The air particles don't move position they just vibrate and cause the particles next to them to vibrate. We looked at how a speaker works and how the cone vibrates which vibrates the air between the speaker and our ears. We then did this experiment which shows how sound vibrates whatever is in front of it - in this case, different liquids.
No comments:
Post a Comment