1_LIGHT AND SOUND

1_LIGHT AND SOUND

1. HEARING

   • Different people hear different pitches and volumes
   • sound vibrates your eardrums
   • loud noises can effect your ears

2. LIGHT

   • Light travels in straight lines at a very fast speed (you can't bend light)
   • Light is reflected off plain surfaces
   • White light can be dispersed to give an array of coulors using a prism

3. VIBRATION AND SOUND

   • Amplitude is the loudness of sound
   • the pitch is the frequency of the sound waves

4. light comes from a luminous source e.g the sun

5. a plain mirror refracts light

6. prisms disperse light (rainbow)