Erayada ka bilowda xarafka I ee Walax-ogaalka (physics)
- Ice: Beref
- Ice point: Bar beref
- Ignition temperature: Heerkul shidid
- Illumination: Iftiin
- Image: Humaag
- Ideal Gas: Neef mitaali ah
- Image, real: Humaag runeed
- Image, virtual: Humaag beeneed
- Impact: Dhacdo
- Impedance: Xayir
- Impedance, external: Xayir dibadeed
- Impedance, internal: Xayir gudeed
- Impulse: Gujo
- Impurity: Huursho
- Incandescent lamp: Guluub Ifbidhe
- Incandescent: If-bidhe
- Independent: Xornimo/Madaxbannaani
- Indicator: Muujiye
- Induction: Saaqan
- Induction, self: Naf saaqan
- Induction, mutual: Iskii saaqan
- Induction coil: Duub saaqineed
- Inductor: Saaqe
- Inert Gas: Neef wahsato
- Inertial frame of reference: Goob-beegaalka wahsiyeed
- Inertia: Wahsi
- Infra-red radiation: Kaah ka-hoos-casaan
- Instrument: Qalab/Alaabo/Agab
- Insulation: Dahaadhid
- Insulator: Dahaadhe
- Integral: Abyoneed
- Intensity: Itaal
- Interaction: Falgalan/Falcelis
- Interference: Labid/Isdhexgal
- Interferometer: Labid-beege/Isdhexgal-beege
- Intermediate state: Weji dhexaad/Marxalad dhexaad
- Internal: Gudeed
- Invariant: Isma-doorshe
- Inverse square law: Xeerka labanlaabka rogan
- Inversion: Rogitaan
- Ion density: Cufnaan Aayon
- Ion exchange: Iswaydaarsi Aayon
- Ion gun: Bunduq Aayon/Aayon-game
- Ionic radius: Gacan Aayon
- Ionisation: Aayoneyn
- Ionisation potential: Kayd Aayoneeye
- Ionisation temperature: Heerkul aayoneeye
- Ionosphere: Aayanosfiyeer
- Iris: Kurux
- Iron: Bir (curiye)
- Iron fillings: Budo bireed
- Isobars: Isku-cadaadis
- Isotherm: Isku-heerkul
- Isotope: Isku-god