[{"question":"Pod\u013ea \u010doho vieme, ko\u013eko energie so sebou vlna prin\u00e1\u0161a?","answers":["pod\u013ea smeru vlny","pod\u013ea v\u00fd\u0161ky vlny","pod\u013ea d\u013a\u017eky vlny","pod\u013ea po\u010dtu v\u013an"],"correct":"pod\u013ea v\u00fd\u0161ky vlny","order":"1"},{"question":"\u010co nie je zdrojom vlnenia?","answers":["v\u00fdbuch podmorskej sopky","kmitaj\u00faca struna","hraj\u00faci reproduktor","kyvadlo na hodin\u00e1ch"],"correct":"kyvadlo na hodin\u00e1ch","order":"2"},{"question":"Zdroj zvuku m\u00e1 ve\u013ek\u00fd v\u00fdkon. \u010co to znamen\u00e1?","answers":["hlasitos\u0165 zvuku je len nieko\u013eko decibelov","len slabo rozkmit\u00e1 bubienok v uchu","tlak vzduchu v takej zvukovej vlne v\u00fdrazne rastie a zase kles\u00e1","vzduch sa vo zvukovej vlne roz\u0165ahuje a stl\u00e1\u010da len m\u00e1lo"],"correct":"tlak vzduchu v takej zvukovej vlne v\u00fdrazne rastie a zase kles\u00e1","order":"3"},{"question":"\u010co je to decibel?","answers":["najmen\u0161ia hlasitos\u0165 , ktor\u00fa dok\u00e1\u017eeme uchom rozozna\u0165","najv\u00e4\u010d\u0161ia hlasitos\u0165, ktor\u00fa dok\u00e1\u017eeme uchom rozozna\u0165","zvuk \u0161tartuj\u00faceho lietadla","zvuk reproduktoru"],"correct":"najmen\u0161ia hlasitos\u0165 , ktor\u00fa dok\u00e1\u017eeme uchom rozozna\u0165","order":"4"},{"question":"Pre\u010do vzdialenej\u0161\u00ed zvuk po\u010dujeme slab\u0161ie?","answers":["zvuk slabne, lebo sa rozbieha na v\u0161etky strany","zvuk slabne, lebo nem\u00f4\u017ee dosiahnu\u0165 a\u017e na bubienok ucha","zvuk slabne, lebo jeho energia sa zv\u00e4\u010d\u0161uje","zvuk slabne, lebo sa zmen\u0161uje jeho r\u00fdchlos\u0165"],"correct":"zvuk slabne, lebo sa rozbieha na v\u0161etky strany","order":"5"},{"question":"Ako fonendoskop, ktor\u00fd pou\u017e\u00edva lek\u00e1r na po\u010d\u00favanie tlkotu srdca a d\u00fdchania, pren\u00e1\u0161a zvuk?","answers":["obsahuje lektronick\u00fd zosilova\u010d zvuku","vybruj\u00faca trubica zosiluje zvuk, ktor\u00fd \u0148ou prech\u00e1dza","zvuk prech\u00e1dza trubicou tak, \u017ee sa odr\u00e1\u017ea st\u00e1le dopredu, a preto sa nezoslabuje","stl\u00e1\u010dan\u00edm trubice sa zv\u00e4\u010d\u0161uje tlak vzduchu"],"correct":"zvuk prech\u00e1dza trubicou tak, \u017ee sa odr\u00e1\u017ea st\u00e1le dopredu, a preto sa nezoslabuje","order":"6"},{"question":"Ako l\u00e1tky pohlcuj\u00fa zvuk?","answers":["odr\u00e1\u017eaj\u00fa ho","pri pohybe vznik\u00e1 trenie, ktor\u00e9 odober\u00e1 energiu zvuku","silno sa rozkmitaj\u00fa, a tak zvuk zachytia","zvy\u0161uj\u00fa tlak vzduchu vo zvukovej vlne"],"correct":"pri pohybe vznik\u00e1 trenie, ktor\u00e9 odober\u00e1 energiu zvuku","order":"7"},{"question":"\u010co pohlcuje zvuk najviac?","answers":["sklenen\u00e1 vata","oce\u013e","plast","drevo"],"correct":"sklenen\u00e1 vata","order":"8"},{"question":"Ktor\u00e9 opatrenie nechr\u00e1ni pred hlukom?","answers":["stromy vysaden\u00e9 medzi domami a cestou","pru\u017en\u00e9 podlo\u017eky pod stroje","letisko nestaviame v meste","namiesto plastov pou\u017e\u00edva\u0165 kovy"],"correct":"namiesto plastov pou\u017e\u00edva\u0165 kovy","order":"9"},{"question":"Ak\u00e1 hlasitos\u0165 je povolen\u00e1 v obytn\u00fdch z\u00f3nach?","answers":["100 dB","85 dB","50 dB","10 dB"],"correct":"50 dB","order":"10"}]