Physics P1 Topic 1

Physics P1 Topic 1

1. solar syslem

   • Geocentric
     • Earth center
   • heliocentric
     • sun center
       • copernicus
   • contemporary
     • modern model

2. about the Universe

   • The Solar system
     • planets & asteroids
   • The Milky Way
     • naked eye then telescopes

3. eyepiece lence

   • placed by the focal length

4. Focal lenght

   • center of the lense to focal piont

5. Observing

   • naked eye
   • photography
   • telescope

6. Jupiter

   • used new telescope and saw Jupiters moons
     • proved geocentric model wrong

7. reflecting telescope

   • circular lens

8. light reflection & refraction

   • air ==> glass
     • towards normal
   • incidence
   • reflection

9. refraction

   • dencity
   • light bends
   • 90`
     • says same

10. waves transfer energy without transfering matter

11. waves

    • amplitude
      • crest to trough
    • wavelength
      • one full cycle
    • frequency
      • cycles per second
    • longnitudinal
    • transverse
    • v = f x landa