[{"question":"Ak\u00e9 sily p\u00f4sobia proti pohybu telesa?","answers":["\u017eiadne","len trecie","len odpor prostredia","odporov\u00e1 sila prostredia a trecia sila"],"correct":"odporov\u00e1 sila prostredia a trecia sila","order":"1"},{"question":"Ak\u00fa pr\u00e1cu konaj\u00fa tieto sily?","answers":["mechanick\u00fa","elektrick\u00fa","automatick\u00fa","hydraulick\u00fa"],"correct":"mechanick\u00fa","order":"2"},{"question":"Ktorej sile je priamo \u00famern\u00e1 \u0161mykov\u00e1 trecia sila?","answers":["gravita\u010dnej","tlakovej","vztlakovej","odporovej sile prostredia"],"correct":"tlakovej","order":"3"},{"question":"Od \u010doho okrem tlakovej sily z\u00e1vis\u00ed trecia sila?","answers":["len od klzkosti stykov\u00fdch pl\u00f4ch","len od druhu l\u00e1tky","len od drsnosti stykov\u00fdch pl\u00f4ch","od drsnosti stykov\u00fdch pl\u00f4ch a od druhu l\u00e1tky"],"correct":"od drsnosti stykov\u00fdch pl\u00f4ch a od druhu l\u00e1tky","order":"4"},{"question":"Ak\u00fdm smerom p\u00f4sob\u00ed tlakov\u00e1 sila?","answers":["kolmo na plochu podlo\u017eky","zvislo na Zem","proti smeru pohybu telesa","v smere pohybu telesa"],"correct":"kolmo na plochu podlo\u017eky","order":"5"},{"question":"Ako vypo\u010d\u00edtame treciu silu?","answers":["Ft = Fg . Fn","Fg = m . G","Ft = f . Fn","Ft = Fn \/f"],"correct":"Ft = f . Fn","order":"6"},{"question":"\u010co ozna\u010dujeme p\u00edsmenom f?","answers":["klzkos\u0165 pl\u00f4ch","tlakov\u00fa silu","s\u00fa\u010dinite\u013e plo\u0161n\u00e9ho trenia","s\u00fa\u010dinite\u013e \u0161mykov\u00e9ho trenia"],"correct":"s\u00fa\u010dinite\u013e \u0161mykov\u00e9ho trenia","order":"7"},{"question":"Od \u010doho z\u00e1vis\u00ed odporov\u00e1 sila prostredia?","answers":["od hmotnosti telesa","od tlaku telesa a jeho r\u00fdchlosti a ve\u013ekosti","od hustoty prostredia a telesa","od hustoty prostredia, r\u00fdchlosti, ve\u013ekosti a tvaru telesa"],"correct":"od hustoty prostredia, r\u00fdchlosti, ve\u013ekosti a tvaru telesa","order":"8"},{"question":"Z dan\u00fdch mo\u017enost\u00ed vyber ten tvar telesa, na ktor\u00e9 p\u00f4sob\u00ed najmen\u0161ia odporov\u00e1 sila.","answers":["hranat\u00fd","okr\u00fahly","aerodynamick\u00fd","tenk\u00fd"],"correct":"aerodynamick\u00fd","order":"9"},{"question":"Vypo\u010d\u00edtajte treciu silu, ak f = 0,8 a Fn = 400 N","answers":["320 N","32 N","500 N","50 N"],"correct":"320 N","order":"10"}]