studio magic

studio magic

1. concave

   • concave lenses are for the long-sighted
   • the lense makes the rays come further apart
   • it enlarges the image so it hits the eye ball at the right time
   • the lense is fat in the middle like a cave

2. convex

   • it makes the rays become closer
   • it is thin in the midddle
   • convex lenses are for the short-sighted
   • it shrinks the image so it hits the eye in the right place

3. ear

   • 1) ear canal - passes on the vibration into the eardrum
   • 2) ear drum - starts to beat and passes the vibration to the ossicles
   • 3) ossicles - pass the vibration onto the liquid in the cochlea
   • 4) cochlea - change the vibration into electrical impulses and passes it onto the auditory nerve
   • 5) auditory nerve - sends the signal to the brain

4. eye

   • iris- coloured part, made of muscle controls the amount of light going into the eye
   • retina- contains cells which are light seneitive
   • cornea- it refracts light
   • optic nerve- focuses light onto the retina
   • pupil- made smaller or bigger by the iris

5. long-sighted

   • the image is too big for them
   • if someone is long-sighted their eyeball is too small
   • they would have concave lenses
   • the image is being focused behind the retina

6. short-sighted

   • if someone is short-sighted their eyeball is too long
   • the image is being focused in front of the retina
   • the image is too small for them
   • they would have convex lenses

7. oscilloscope graph

   • amplitude- shows how loud the sound is
   • time period - if the lines are close, the sound is high
   • crest - the wave (semi-circle) at the top of the wave
   • trough - the empty space between the waves

Bilder und Dateien der Mindmap