{"id":56035,"date":"2015-02-15T23:39:57","date_gmt":"2015-02-15T21:39:57","guid":{"rendered":"http:\/\/www.sorubak.com\/blog\/?p=56035"},"modified":"2015-02-15T23:39:57","modified_gmt":"2015-02-15T21:39:57","slug":"4-sinif-isik-unitesi-soru-ve-cevaplari","status":"publish","type":"post","link":"https:\/\/www.sorubak.com\/blog\/4-sinif-isik-unitesi-soru-ve-cevaplari.html","title":{"rendered":"4.s\u0131n\u0131f \u0131\u015f\u0131k \u00fcnitesi soru ve cevaplar\u0131"},"content":{"rendered":"

1-I\u015f\u0131k nedir?<\/strong><\/p>\n

I\u015f\u0131k \u00e7evremizdeki varl\u0131klar\u0131 g\u00f6rmemizi sa\u011flayan bir enerji t\u00fcr\u00fcd\u00fcr.<\/p>\n

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2- Nas\u0131l g\u00f6r\u00fcr\u00fcz?<\/strong><\/p>\n

I\u015f\u0131\u011f\u0131n bir maddeye \u00e7arparak g\u00f6z\u00fcm\u00fcze yans\u0131mas\u0131 sonucu cisimleri g\u00f6r\u00fcr\u00fcz.<\/p>\n

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3-I\u015f\u0131k kayna\u011f\u0131 nedir?<\/strong><\/p>\n

\u00c7evrelerine \u0131\u015f\u0131k veren cisimlere \u0131\u015f\u0131k kayna\u011f\u0131 denir.<\/p>\n

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4- Karanl\u0131kta neden g\u00f6remeyiz?<\/strong><\/p>\n

Bir cismi g\u00f6rebilmemiz i\u00e7in o cismin \u0131\u015f\u0131k taraf\u0131ndan ayd\u0131nlanmas\u0131 gerekir. Bu nedenle \u0131\u015f\u0131ks\u0131z ortamlarda cisimleri g\u00f6remeyiz.<\/p>\n

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\u00a0<\/strong>5- Do\u011fal \u0131\u015f\u0131k kayna\u011f\u0131 ne demektir?<\/strong><\/p>\n

Kendili\u011finden \u0131\u015f\u0131k yayan \u0131\u015f\u0131k kaynaklar\u0131na denir.<\/p>\n

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\u00a0<\/strong>6- Do\u011fal \u0131\u015f\u0131k kaynaklar\u0131 nelerdir?<\/strong><\/p>\n

G\u00fcne\u015f, y\u0131ld\u0131zlar, ate\u015f b\u00f6ce\u011fi, fosfordur<\/p>\n

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7- Yapay \u0131\u015f\u0131k kayna\u011f\u0131 ne demektir?<\/strong><\/p>\n

\u0130nsanlar\u0131n yapt\u0131\u011f\u0131 ve olu\u015fturdu\u011fu \u0131\u015f\u0131k kaynaklar\u0131na denir.<\/p>\n

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\u00a0<\/strong>8- Yapay \u0131\u015f\u0131k kaynaklar\u0131 nelerdir?<\/strong><\/p>\n

Ate\u015f, \u00e7\u0131ra, me\u015fale, kandil, mum, gaz lambas\u0131, ampul gibi kaynaklard\u0131r.<\/strong><\/p>\n

\u00a0<\/strong>\u00a0<\/strong>9- En b\u00fcy\u00fck ve en \u00f6nemli \u0131\u015f\u0131k kayna\u011f\u0131m\u0131z nedir?<\/strong><\/p>\n

G\u00fcne\u015f en b\u00fcy\u00fck ve en \u00f6nemli \u0131\u015f\u0131k kayna\u011f\u0131d\u0131r.<\/p>\n

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10- Ay bir \u0131\u015f\u0131k kayna\u011f\u0131m\u0131d\u0131r?<\/strong><\/p>\n

Ay bir \u0131\u015f\u0131k kayna\u011f\u0131 de\u011fildir. Ay\u0131n kendi \u0131\u015f\u0131\u011f\u0131 yoktur. G\u00fcne\u015ften ald\u0131\u011f\u0131 \u0131\u015f\u0131\u011f\u0131 yans\u0131t\u0131r.<\/p>\n

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11- Y\u0131ld\u0131zlar neden bir \u0131\u015f\u0131k kayna\u011f\u0131d\u0131r?<\/strong><\/p>\n

Y\u0131ld\u0131zlar da g\u00fcne\u015f gibi \u0131s\u0131 ve \u0131\u015f\u0131\u011f\u0131n\u0131 kendisi \u00fcreten g\u00f6k cisimleridir. Ancak d\u00fcnyam\u0131zdan \u00e7ok uzaklarda olduklar\u0131 i\u00e7in \u0131s\u0131 ve \u0131\u015f\u0131\u011f\u0131ndan yararlanamay\u0131z.<\/p>\n

\u00a0<\/strong>\u00a0<\/strong><\/p>\n

12- Ate\u015f b\u00f6cekleri neden do\u011fal bir \u0131\u015f\u0131k kayna\u011f\u0131d\u0131r?<\/strong><\/p>\n

Ate\u015f b\u00f6cekleri \u00e7evrelerine \u0131\u015f\u0131k verecek bir yap\u0131ya sahiptir. Bu nedenle do\u011fal \u0131\u015f\u0131k kayna\u011f\u0131d\u0131r.<\/p>\n

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\u00a0<\/strong><\/p>\n

13- Gezegenler neden \u0131\u015f\u0131k kayna\u011f\u0131 de\u011fildir?<\/strong><\/p>\n

Gezegenlerinde ay gibi kendi \u0131\u015f\u0131klar\u0131 yoktur. G\u00fcne\u015f taraf\u0131ndan ayd\u0131nlat\u0131l\u0131rlar.<\/p>\n

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\u00a0<\/strong><\/p>\n

14- Ay neden de\u011fi\u015fik \u015fekillerde g\u00f6r\u00fcn\u00fcr?<\/strong><\/p>\n

Ay bir \u0131\u015f\u0131k kayna\u011f\u0131 olmad\u0131\u011f\u0131 ve ancak g\u00fcne\u015fin ayd\u0131nlatt\u0131\u011f\u0131 kadar\u0131n\u0131 g\u00f6rebildi\u011fimiz i\u00e7in de\u011fi\u015fik \u015fekillerde g\u00f6r\u00fcn\u00fcr.\u00a0<\/strong><\/p>\n

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15- S\u0131cak \u0131\u015f\u0131k kayna\u011f\u0131 ne demektir?<\/strong><\/p>\n

I\u015f\u0131k verirken \u0131s\u0131da verebilen \u0131\u015f\u0131k kaynaklar\u0131na s\u0131cak \u0131\u015f\u0131k kayna\u011f\u0131 denir.<\/p>\n

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\u00a0<\/strong>16- S\u0131cak \u0131\u015f\u0131k kaynaklar\u0131 nelerdir?<\/strong><\/p>\n

Odun-k\u00f6m\u00fcr ate\u015fi, kandil, mum, \u00e7\u0131ra, me\u015fale, gaz lambas\u0131, elektrik ampul\u00fc, elektrikli f\u0131r\u0131n s\u0131cak \u0131\u015f\u0131k kaynaklar\u0131d\u0131r.<\/p>\n

17- So\u011fuk \u0131\u015f\u0131k kayna\u011f\u0131 ne demektir?<\/strong><\/p>\n

I\u015f\u0131k verirken \u0131s\u0131 vermeyen \u0131\u015f\u0131k kayna\u011f\u0131 demektir.<\/p>\n

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18- So\u011fuk \u0131\u015f\u0131k kaynaklar\u0131 nelerdir?<\/strong><\/p>\n

Neon, floresan ampuller \u00f6rnek olarak verilebilir.<\/p>\n

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19- Klasik ampuller nas\u0131l \u0131\u015f\u0131k verirler?<\/strong><\/p>\n

Bu t\u00fcr ampullerde bulunan ince tele(flaman) elektrik ak\u0131m\u0131 verildi\u011finde tel \u0131s\u0131narak \u0131\u015f\u0131k yayar.<\/p>\n

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20- I\u015f\u0131k \u00fcretmeyen varl\u0131klar\u0131 nas\u0131l g\u00f6r\u00fcr\u00fcz?<\/strong><\/p>\n

Bu varl\u0131klar\u0131 \u0131\u015f\u0131k kaynaklar\u0131ndan \u0131\u015f\u0131k ald\u0131klar\u0131nda g\u00f6r\u00fcr\u00fcz.<\/p>\n

\u00a0<\/strong>21- Neden trafik levhalar\u0131 geceleri di\u011fer cisimlerden daha parlak g\u00f6r\u00fcn\u00fcr?<\/strong><\/p>\n

Trafik levhalar\u0131 fosforlu maddeyle kapland\u0131\u011f\u0131 i\u00e7in ta\u015f\u0131tlar\u0131n farlar\u0131 \u00fczerine geldi\u011fi zaman daha parlak g\u00f6r\u00fcn\u00fcrler.<\/p>\n

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22- Gece bisiklet kullananlar neden a\u00e7\u0131k renk ve parlak giysiler giymelidirler?<\/strong><\/p>\n

Ta\u015f\u0131t farlar\u0131ndan yay\u0131lan \u0131\u015f\u0131kta daha iyi g\u00f6r\u00fcnebilmeleri i\u00e7in.<\/p>\n

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23- Eskiden hangi ayd\u0131nlatma ara\u00e7lar\u0131 kullan\u0131l\u0131rd\u0131?<\/strong><\/p>\n

Ate\u015f, kandil, gaz lambas\u0131, karpit lambas\u0131 kullan\u0131l\u0131yordu.<\/p>\n

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24- Ampul\u00fc kim bulmu\u015ftur?<\/strong><\/p>\n

Thomas Edison bulmu\u015ftur.<\/p>\n

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25- Ampulde kullan\u0131lan ve akkor haline gelerek \u0131\u015f\u0131k veren madde nedir?<\/strong><\/p>\n

Tungstendir.(wolfram)<\/p>\n

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26- Yanl\u0131\u015f ayd\u0131nlatman\u0131n ne gibi olumsuz etkileri vard\u0131r?<\/strong><\/p>\n

G\u00f6z sa\u011fl\u0131\u011f\u0131m\u0131z\u0131n bozulmas\u0131na ve fazla enerji harcanmas\u0131na neden olur.<\/p>\n

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27- Enerji tasarrufu neden \u00e7ok \u00f6nemlidir?<\/strong><\/p>\n

\u00d6zellikle elektrik pahal\u0131 bir enerjidir. Elektri\u011fin fazla kullan\u0131m\u0131 bizi ve \u00fclkemizi ekonomik olarak s\u0131k\u0131nt\u0131ya sokar.<\/p>\n

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28- I\u015f\u0131k kirlili\u011fi nedir?<\/strong><\/p>\n

I\u015f\u0131\u011f\u0131n yanl\u0131\u015f yerde, yanl\u0131\u015f miktarda, yanl\u0131\u015f y\u00f6nde ve yanl\u0131\u015f zamanda kullan\u0131lmas\u0131d\u0131r<\/p>\n","protected":false},"excerpt":{"rendered":"

1-I\u015f\u0131k nedir? I\u015f\u0131k \u00e7evremizdeki varl\u0131klar\u0131 g\u00f6rmemizi sa\u011flayan bir enerji t\u00fcr\u00fcd\u00fcr.   2- Nas\u0131l g\u00f6r\u00fcr\u00fcz? I\u015f\u0131\u011f\u0131n bir maddeye \u00e7arparak g\u00f6z\u00fcm\u00fcze yans\u0131mas\u0131 sonucu cisimleri g\u00f6r\u00fcr\u00fcz.   3-I\u015f\u0131k kayna\u011f\u0131 nedir? \u00c7evrelerine \u0131\u015f\u0131k veren cisimlere \u0131\u015f\u0131k kayna\u011f\u0131 denir.         4- Karanl\u0131kta neden g\u00f6remeyiz? Bir cismi g\u00f6rebilmemiz i\u00e7in o cismin \u0131\u015f\u0131k taraf\u0131ndan ayd\u0131nlanmas\u0131 gerekir. Bu nedenle \u0131\u015f\u0131ks\u0131z … Devam\u0131n\u0131 oku…<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15],"tags":[],"_links":{"self":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts\/56035"}],"collection":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/comments?post=56035"}],"version-history":[{"count":0,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts\/56035\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/media?parent=56035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/categories?post=56035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/tags?post=56035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}