Light and Sound Mind Map

Light and Sound Mind Map

1. Light is so fast we can't see it, but when it slows down we can see many colours

   • There are 3 main colours
     • Red
     • Yellow
     • Blue
   • We can slow light down by using glass or water

2. You can work out the average speed of something by doing distance divided by time

   • The Speed of light is about 300,000,000 m/s
   • The speed of sound is 340 m/s
   • Usain Bolts top speed is about 10m/s

3. Sound travels in waves

   • You can normally hear as a child from 20Hz to 20,000Hz
     • Sound travels fastest through solids