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Index > Physics
 gravity disgyrchiant  light golau  atom atom  magnet magnet  quark cwarc  pulley pwli  compass cwmpawd  crystal crisial  density dwysedd  voltage foltedd  electricity trydan  electronics trydaneg  pressure pwysedd  impact gwrthdrawiad  laser laser  microscope meicrosgôp  mirror drych  movement symudiad  wave ton  physics ffiseg  optics opteg  plasma plasma  reflection adlewyrchiad  resistor cryfder  telescope telesgop  sound sain  value gwerth  wavelength tonfedd  distance pellter  smoke llid  steam ager  thermometer gwresfesurydd  battery batri  volume cyfaint  width lled |
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