[{"question":"Dopl\u0148te vetu: V\u00fdkon ud\u00e1va...","answers":["pr\u00e1cu, ktor\u00e1 sp\u00f4sob\u00ed posunutie telesa o ur\u010dit\u00fa d\u013a\u017eku","silu, ktorou p\u00f4sob\u00edme na teleso za ur\u010dit\u00fd \u010das","mno\u017estvo pr\u00e1ce, ktor\u00e9 vykon\u00e1 teleso za ur\u010dit\u00fd \u010das","silu, ktor\u00e1 sp\u00f4sob\u00ed posunutie telesa o ur\u010dt\u00fa d\u013a\u017eku"],"correct":"mno\u017estvo pr\u00e1ce, ktor\u00e9 vykon\u00e1 teleso za ur\u010dit\u00fd \u010das","order":"1"},{"question":"Ako ozna\u010dujeme v\u00fdkon?","answers":["F","W","P","Q"],"correct":"P","order":"2"},{"question":"V ak\u00fdch jednotk\u00e1ch meriame v\u00fdkon?","answers":["newton","watt","joule","pascal"],"correct":"watt","order":"3"},{"question":"Ak\u00fd je rozmer jednotky v\u00fdkonu?","answers":["kg*s","kg.m.s-2<\/sup>","kg.m2<\/sup>.s-2<\/sup>","kg.m2<\/sup>.s-3<\/sup>"],"correct":"kg.m2<\/sup>.s-3<\/sup>","order":"4"},{"question":"Ak pri posunut\u00ed telesa o 4 metre za 4 sekundy vykon\u00e1me 100 Wattov, akou silou na toto teleso p\u00f4sob\u00edme?","answers":["1 N","10 N","100 N","1000 N"],"correct":"100 N","order":"5"},{"question":"Ktor\u00fd z uveden\u00fdch vz\u0165ahov predstavuje vzorec pre v\u00fdpo\u010det v\u00fdkonu?","answers":["P = W\/t","P = W * t","P = W + t","P = W - t"],"correct":"P = W\/t","order":"6"},{"question":"Na premiestnenie telesa sa vykonala pr\u00e1ca 25 kJ. Premiestnenie trvalo 5 sek\u00fand. Ak\u00fd v\u00fdkon sme vynalo\u017eili?","answers":["0,25 kW","2,5 kW","25 W","25 kW"],"correct":"25 kW","order":"7"},{"question":"Ako by sa zmenil v\u00fdkon z predch\u00e1dzaj\u00faceho pr\u00edkladu, ak by premiestnenie telesa trvalo viac ako 5 sek\u00fand?","answers":["zv\u00e4\u010d\u0161il by sa","zmen\u0161il by sa","ostal by rovnak\u00fd","zmena \u010dasu celkov\u00fd v\u00fdkon neovplyvn\u00ed"],"correct":"zmen\u0161il by sa","order":"8"},{"question":"Na teleso p\u00f4sob\u00edme silou 25 N a pren\u00e1\u0161ame ho po dobu 4 sek\u00fand. Vykon\u00e1me pri tom 100 W. O ak\u00fa vzdialenos\u0165 sme ho posunuli?","answers":["16 m","1000 m","8 m","4 m"],"correct":"16 m","order":"9"},{"question":"Ktor\u00fd z uveden\u00fdch vz\u0165ahov je spr\u00e1vny?","answers":["P = F\/(s*t)","P = m*a*s\/t","P = 1\/(F*s*t)","P = F*t\/s"],"correct":"P = m*a*s\/t","order":"10"}]