jaro_vrastiakCP8b Vector diagrams - resultant force, balanced unbalanced forces, scale diagram, component vector (0)
jaro_vrastiakCP9b Current and potential difference - ampere, ammeter, volt, voltage, voltmeter, electric current (0)
jaro_vrastiakCP9a - Electric circuits - free electrons, series circuit, parallel circuit, conventional flow (0)
jaro_vrastiakCP8a - Objects affecting each other - contact force, non-contact force, force field, action-reaction (1)