[{"question":"K ak\u00fdm premen\u00e1m energie doch\u00e1dza pri k\u013azani na vodnej k\u013aza\u010dke?","answers":["polohov\u00e1 energia sa men\u00ed na pohybov\u00fa","pohybov\u00e1 energia sa men\u00ed na polohov\u00fa","zmen\u0161uje sa pohybov\u00e1 energia","zv\u00e4\u010d\u0161uje sa polohov\u00e1 energia"],"correct":"polohov\u00e1 energia sa men\u00ed na pohybov\u00fa","order":"1"},{"question":"Kde je najv\u00e4\u010d\u0161ia pohybov\u00e1 energia pri k\u013azan\u00ed na vodnej k\u013aza\u010dke?","answers":["na vrchole k\u013aza\u010dky","v strede k\u013aza\u010dky","na konci k\u013aza\u010dky tesne pred dopadom do vody","vo vode"],"correct":"na konci k\u013aza\u010dky tesne pred dopadom do vody","order":"2"},{"question":"Ak\u00fa energiu m\u00e1 skateboardista stojaci na hornom okraji U rampy vo v\u00fd\u0161ke h nad zemou?","answers":["Ek","pohybov\u00fa","\u017eiadnu","Ep"],"correct":"Ep","order":"3"},{"question":"Pod\u013ea ak\u00e9ho vz\u0165ahu vieme vypo\u010d\u00edta\u0165 polohov\u00fa energiu?","answers":["Ep = m.g.h","Ek = m.g.h","Ep = m.G.h","Ek = m.G.h"],"correct":"Ep = m.g.h","order":"4"},{"question":"Rozbehnut\u00fd skateboardista st\u00fapa z dna U rampy na jej okraj. K ak\u00fdm premen\u00e1m energie pri tom doch\u00e1dza?","answers":["polohov\u00e1 energia sa men\u00ed na pohybov\u00fa","pohybov\u00e1 energia sa men\u00ed na polohov\u00fa","zv\u00e4\u010d\u0161uje sa pohybov\u00e1 energia","zmen\u0161uje sa polohov\u00e1 energia"],"correct":"pohybov\u00e1 energia sa men\u00ed na polohov\u00fa","order":"5"},{"question":"\u010co je to mechanick\u00e1 energia?","answers":["rozdiel polohovej a pohybovej energie","E = Ep -Ek","s\u00fa\u010det polohovej a pohybovej energie","Ep = E + Ek"],"correct":"s\u00fa\u010det polohovej a pohybovej energie","order":"6"},{"question":"\u010co hovor\u00ed z\u00e1kon zachovania mechanickej energie?","answers":["V\u017edy doch\u00e1dza k strat\u00e1m energie.","Za ide\u00e1lnych podmienok sa celkov\u00e1 mechanick\u00e1 energia nemen\u00ed.","Celkov\u00e1 mechanick\u00e1 energia sa nikdy nemen\u00ed.","Celkov\u00e1 mechanick\u00e1 energia sa rovn\u00e1 s\u00fa\u010dtu polohovej a pohybovej energie."],"correct":"Za ide\u00e1lnych podmienok sa celkov\u00e1 mechanick\u00e1 energia nemen\u00ed.","order":"7"},{"question":"Pre\u010do, po odraze od podlahy, lopti\u010dka nevyst\u00fapy do p\u00f4vodnej v\u00fd\u0161ky?","answers":["Nie je to pravda.","Lebo pri st\u00fapan\u00ed lopti\u010dky sa energia str\u00e1ca.","Lebo vznik\u00e1 nov\u00e1 energia.","Lebo sa \u010das\u0165 energie pou\u017eije na stla\u010denie lopti\u010dky pri odraze."],"correct":"Lebo sa \u010das\u0165 energie pou\u017eije na stla\u010denie lopti\u010dky pri odraze.","order":"8"},{"question":"Ak\u00fd je vz\u0165ah medzi pr\u00e1cou, polohovou a pohybovou energiou pri p\u00e1de lopti\u010dky?","answers":["W = Ep = Ek","W = Ep + Ek","W = Ep - Ek","Ep = W + Ek"],"correct":"W = Ep = Ek","order":"9"},{"question":"Pod\u013ea ak\u00e9ho vz\u0165ahu vypo\u010d\u00edtame pr\u00e1cu w vykonan\u00fa pri zdvihnut\u00ed lopti\u010dky do v\u00fd\u0161ky h?","answers":["W = Ep .h","W = m.G.h","W = Fg.h","W = Ek .h"],"correct":"W = Fg.h","order":"10"}]