This week we have been learning about Sound. We have learnt:
- Sound is made by a vibration
- Sound is measured in Decibels (dB)
- Sound waves move through the air
- Light travels quicker than sound
- Sound travels quicker through water than the air
- Every object absorbs some of the sound
- Sound travels at 330 meters per second
- Light travels at a speed of 300 million meters per second
- Different parts of the ear, such as the Cochlea, Canal, Drum.
- The bones that vibrate in your ear are the smallest bones in your body
- Your ear converts air vibrations into liquid vibrations so it can reach your brain quicker