Biến dạng của lò xo - Bài tập nâng cao

Home Lớp 6 Khoa học tự nhiên 6 - Sách kết nối tri thức Bài 42: Biến dạng của lò xoBài tập nâng cao

{"common":{"save":0,"post_id":"5119","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"10881","post_id":"5119","mon_id":"1158149","chapter_id":"1158295","question":"Treo m\u1ed9t qu\u1ea3 cân 50 g vào m\u1ed9t l\u1ef1c k\u1ebf thì kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 2. N\u1ebfu treo thêm qu\u1ea3 cân 25 g vào l\u1ef1c k\u1ebf thì kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 bao nhiêu?<\/p>","options":["V\u1ea1ch th\u1ee9 5","V\u1ea1ch th\u1ee9 3","V\u1ea1ch th\u1ee9 4"],"correct":"2","level":"3","hint":"","answer":"Treo m\u1ed9t qu\u1ea3 cân 50 g vào m\u1ed9t l\u1ef1c k\u1ebf thì kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 2. Nh\u01b0 v\u1eady m\u1ed7i v\u1ea1ch c\u1ee7a l\u1ef1c k\u1ebf \u1ee9ng v\u1edbi 25 g  (vì  50 : 2 = 25).<\/p>Do \u0111ó n\u1ebfu treo thêm m\u1ed9t qu\u1ea3 cân n\u1eb7ng 25 g thì lúc này t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng treo vào lò xo là  <\/p>50 + 25 = 75 g<\/p>Khi \u0111ó kim l\u1ef1c k\u1ebf s\u1ebd ch\u1ec9 v\u1ea1ch th\u1ee9 3  (vì  75 : 25 = 3).<\/p>\u0110áp án \u0111úng là   V\u1ea1ch th\u1ee9 3<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2021-11-04 02:55:09","option_type":"txt","len":0},{"id":"10883","post_id":"5119","mon_id":"1158149","chapter_id":"1158295","question":"Treo m\u1ed9t qu\u1ea3 cân 100 g vào m\u1ed9t l\u1ef1c k\u1ebf thì kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 2. V\u1eady n\u1ebfu treo thêm m\u1ed9t qu\u1ea3 cân 100 g vào l\u1ef1c k\u1ebf thì kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 <\/p>","options":["1","2","3","4"],"correct":"4","level":"3","hint":"","answer":"Treo m\u1ed9t qu\u1ea3 cân 100 g vào m\u1ed9t l\u1ef1c k\u1ebf thì kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 2. Nh\u01b0 v\u1eady m\u1ed7i v\u1ea1ch c\u1ee7a l\u1ef1c k\u1ebf \u1ee9ng v\u1edbi 50 g  (vì  100 : 2 = 50).<\/p>Do \u0111ó n\u1ebfu treo thêm m\u1ed9t qu\u1ea3 cân n\u1eb7ng 100 g thì lúc này t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng treo vào lò xo là  <\/p>100 + 100 = 200 g<\/p>Khi \u0111ó kim l\u1ef1c k\u1ebf s\u1ebd ch\u1ec9 v\u1ea1ch th\u1ee9 4  (vì  200 : 50 = 4).<\/p>\u0110áp án \u0111úng là   V\u1ea1ch th\u1ee9 4<\/strong><\/span><\/p>","type":"choose","extra_type":"star","time":"0","user_id":"131","test":"0","date":"2021-11-04 02:57:59","option_type":"txt","len":0},{"id":"10884","post_id":"5119","mon_id":"1158149","chapter_id":"1158295","question":"Treo m\u1ed9t qu\u1ea3 cân 100 g vào m\u1ed9t l\u1ef1c k\u1ebf thì kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 2. Khi kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 6 thì t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a các qu\u1ea3 cân \u0111ã treo vào l\u1ef1c k\u1ebf là bao nhiêu?<\/p>","options":["200 g","250 g","300 g","350 g"],"correct":"3","level":"3","hint":"","answer":"Treo m\u1ed9t qu\u1ea3 cân 100 g vào m\u1ed9t l\u1ef1c k\u1ebf thì kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 2. Nh\u01b0 v\u1eady m\u1ed7i v\u1ea1ch c\u1ee7a l\u1ef1c k\u1ebf \u1ee9ng v\u1edbi 50 g  (vì  100 : 2 = 50).<\/p>Khi kim c\u1ee7a l\u1ef1c k\u1ebf ch\u1ec9 v\u1ea1ch th\u1ee9 6 thì t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a các qu\u1ea3 cân \u0111ã treo vào l\u1ef1c k\u1ebf là<\/p>6 . 50 = 300 g<\/p>\u0110áp án \u0111úng là   300 g<\/strong><\/span><\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"131","test":"0","date":"2021-11-04 03:00:58","option_type":"txt","len":0}]}