{"id":713,"date":"2011-08-14T10:10:51","date_gmt":"2011-08-14T08:10:51","guid":{"rendered":"http:\/\/www.zsvltava.cz\/fyzika\/?p=713"},"modified":"2025-04-10T09:21:49","modified_gmt":"2025-04-10T07:21:49","slug":"tucet-prikladu-pro-6-rocnik","status":"publish","type":"post","link":"https:\/\/www.zsvltava.cz\/fyzika\/?p=713","title":{"rendered":"P\u016fl tuctu a 3 p\u0159\u00edklady pro 6. ro\u010dn\u00edk"},"content":{"rendered":"

Dr\u00e1ha, rychlost, \u010das<\/h2>\n
    \n
  1. Za jak dlouho dob\u011bhne li\u0161ka k T\u00e1boru, kdy\u017e b\u011b\u017e\u00ed rychlost\u00ed 35 km\/h a m\u00e1 p\u0159ed sebou posledn\u00ed \u010dtvrtinu z celkov\u00fdch 20 kilometr\u016f?<\/li>\n
  2. Meteorologick\u00fd bal\u00f3n vystoupal za 30 minut do v\u00fd\u0161ky 3,8 km. Jakou rychlost\u00ed stoupal?<\/li>\n
  3. Za jak dlouho dos\u00e1hl bal\u00f3n z p\u0159edchoz\u00edcho p\u0159\u00edkladu v\u00fd\u0161ky 19 km?<\/li>\n
  4. \nAutomotodrom v Brn\u011b m\u011b\u0159\u00ed 5 403,19 m. Nejrychleji okruh projel L. Filippi ve formuli za 1 min a 43 s. Jak\u00e1 byla pr\u016fm\u011brn\u00e1 rychlost t\u00e9to j\u00edzdy?\n<\/li>\n<\/ol>\n

    Objem, hmotnost, hustota<\/h2>\n
      \n
    1. Diamant m\u00e1 rozm\u011bry 2 cm x 4 cm x 1 cm, jeho hmostnost je 12,6 g. Jak\u00e1 je hustota diamantu?<\/li>\n
    2. \u017delezni\u010dn\u00ed vag\u00f3n uveze 58 tun n\u00e1kladu. Jak\u00fd objem uhl\u00ed m\u016f\u017eeme do vag\u00f3nu nalo\u017eit?<\/li>\n
    3. Kdysi bylo odm\u011bnou tzv. vyv\u00e1\u017een\u00ed zlatem. Znamenalo to, \u017ee se na jednu stranu vah dal p\u0159edm\u011bt, kter\u00fd se m\u011bl vyv\u00e1\u017eit a naproti se p\u0159id\u00e1valo zlato. Kolik zlat\u00fdch cihel, ka\u017ed\u00e1 o rozm\u011bru 30 cm x 12 cm x 15 cm by bylo pot\u0159eba pokud by cht\u011bl n\u011bkdo vyv\u00e1\u017eit tebe?<\/li>\n
    4. Nejleh\u010d\u00ed l\u00e1tka kterou \u010dlov\u011bk um\u00ed vyrobit se naz\u00fdv\u00e1 AEROGEL<\/a>. Hustota t\u00e9to l\u00e1tky jsou pouh\u00e9 2 kg\/m3<\/sup>. Kolik bys v\u00e1\u017eil(a), kdybys byl(a) z t\u00e9to l\u00e1tky? (hustota lidsk\u00e9ho t\u011bla je p\u0159ibli\u017en\u011b 985 kg\/m3<\/sup>) <\/li>\n
    5. Jedna americk\u00e1 sekvoj poskytne 2 000 m3<\/sup> d\u0159eva. Kolik \u017eelezni\u010dn\u00edch vag\u00f3n\u016f (ka\u017ed\u00fd uveze 58 tun n\u00e1kladu) bude t\u0159eba k odvozu 20 sekvoj\u00ed?
      Hustota sekvojov\u00e9ho d\u0159eva je p\u0159ibli\u017en\u011b 600 kg\/m3<\/sup><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

      Dr\u00e1ha, rychlost, \u010das Za jak dlouho dob\u011bhne li\u0161ka k T\u00e1boru, kdy\u017e b\u011b\u017e\u00ed rychlost\u00ed 35 km\/h a m\u00e1 p\u0159ed sebou posledn\u00ed \u010dtvrtinu z celkov\u00fdch 20 kilometr\u016f? …. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[32,28],"class_list":["post-713","post","type-post","status-publish","format-standard","hentry","category-priklady-pro-6-rocnik","tag-objem-a-hustota","tag-vypocet-rychlosti"],"_links":{"self":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=713"}],"version-history":[{"count":0,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/713\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}