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gravity swaartekrag cold koue light lig atom atoom magnet magneet balance balans pulley katrol shape gedaante chemical chemiese stof compass kompas crystal kristal stream stroom density digtheid voltage elektriese potensiaal electricity elektrisiteit transistor transistor electronics elektronika pressure spanning gas gas impact impak laser laser liquid vloeistof microscope mikroskoop mirror spieƫl movement beweging wave golf physics fisika optics optika plasma plasma radiation radioaktiwiteit resistor resistor telescope teleskoop sound klank spectrum spektrum value waarde wavelength golflengte distance afstand measurement meting smoke damp steam stoom thermometer termometer battery battery volume volume width wydte height hoogte |
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