hmms i wanna try smth . :D
i will try to read and type and REVISE my phy here .
and to kip my bloq alive .
did u notice i kip postin ? :D hehhehhehhhhs
so i will prove dat im revisin .
wakakakkaka .
strt nw :D



Transmission of Heat

1. heat move frm hot to cold .
2. heat in covection move up and dwn .
3. heat in radiation move in all directions .
4. conduction occurs in SOLIDS
by vibrations , molecules knock against each other .
vacuum is th BEST conductor folo by air .
5. convection occurs in LIQUIDS and GASES
by th movement of water/air molecules
but best in liquid .
th movement cause a convection current .
example of uses of convection : air conditioner
6. radiation occurs in GAS th best .
keyword for radiation : emittor , absorber , reflector .
black is a gd emittor , absorber .
white/shiny surface is a gd reflector .

nw lights and colour :D

light travel at 3^10^10m/s
(shld b)
luminous object gib out light while non-luminous reflect light .
light travel in a straight line .
angel of reflection= angel of incident .

characteristics of an image formed by a mirror
1. dist between object and mirror = image and mirror
2. image is uprite
3. image is same size as th object
4. image formed is a virtual image
5.image is laterally inverted

2 type of reflection
regular and diffuse

2 type of mirror
plane and curved

curved : convex and concave
convex : small big small
concave : big small big

refraction is th bendin of light
higher density to lower density bend towards normal
lower density to higher density bend away normal

colour of th rainbow : red orange yellow green blue indigo violet




okaye im done wib phy . (wib some tb reference)
so guai cn
wakakkakakaaaa .