Ch\u01b0\u01a1ng 8 - B\u00e0i 41: C\u1ea5u t\u1ea1o v\u0169 tr\u1ee5<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/chuong-8-bai-41-cau-tao-vu-tru\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 8 - B\u00e0i 41: C\u1ea5u t\u1ea1o v\u0169 tr\u1ee5\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 216 SGK V\u1eadt L\u00fd 12):\u00a0Tr\u00ecnh b\u00e0y c\u1ea5u t\u1ea1o c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi L\u1eddi gi\u1ea3i: C\u1ea5u t\u1ea1o c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi g\u1ed3m M\u1eb7t Tr\u1eddi, c\u00e1c h\u00e0nh tinh v\u00e0 c\u00e1c v\u1ec7 tinh. B\u00e0i 2 (trang 216 SGK V\u1eadt L\u00fd 12):\u00a0M\u1eb7t Tr\u1eddi c\u00f3 vai tr\u00f2 g\u00ec trong h\u1ec7 M\u1eb7t Tr\u1eddi? 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B\u00e0i 1 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Tr\u00ecnh b\u00e0y c\u1ea5u t\u1ea1o c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi<\/span><\/p>\n

C\u1ea5u t\u1ea1o c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi g\u1ed3m M\u1eb7t Tr\u1eddi, c\u00e1c h\u00e0nh tinh v\u00e0 c\u00e1c v\u1ec7 tinh.<\/p>\n

B\u00e0i 2 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0M\u1eb7t Tr\u1eddi c\u00f3 vai tr\u00f2 g\u00ec trong h\u1ec7 M\u1eb7t Tr\u1eddi?<\/span><\/p>\n

L\u1ef1c h\u1ea5p d\u1eabn c\u1ee7a M\u1eb7t Tr\u1eddi \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh, ph\u00e1t tri\u1ec3n v\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a h\u1ec7. M\u1eb7t tr\u1eddi l\u00e0 ngu\u1ed3n cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng ch\u00ednh cho c\u1ea3 h\u1ec7. Ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng c\u1ee7a M\u1eb7t Tr\u1eddi l\u00e0 ph\u1ea3n \u1ee9ng t\u1ed5ng h\u1ee3p h\u1ea1t nh\u00e2n, trong \u0111\u00f3 c\u00e1c h\u1ea1t nh\u00e2n hidro \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p th\u00e0nh h\u1ea1t nh\u00e2n heli.<\/p>\n

B\u00e0i 3 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Ph\u00e2n bi\u1ec7t h\u00e0nh tinh v\u00e0 v\u1ec7 tinh.<\/span><\/p>\n

H\u00e0nh tinh l\u00e0 thi\u00ean th\u1ec3 l\u1edbn, chuy\u1ec3n \u0111\u1ed9ng quanh M\u1eb7t Tr\u1eddi.<\/p>\n

V\u1ec7 tinh l\u00e0 thi\u00ean th\u1ec3 nh\u1ecf, chuy\u1ec3n \u0111\u1ed9ng quanh h\u00e0nh tinh.<\/p>\n

V\u00ed d\u1ee5 : Tr\u00e1i \u0110\u1ea5t chuy\u1ec3n \u0111\u1ed9ng quanh M\u1eb7t Tr\u1eddi. Tr\u00e1i \u0110\u1ea5t l\u00e0 h\u00e0nh tinh.<\/p>\n

M\u1eb7t Tr\u1eddi l\u00e0 v\u1ec7 tinh c\u1ee7a Tr\u00e1i \u0110\u1ea5t. M\u1eb7t tr\u0103ng chuy\u1ec3n \u0111\u1ed9ng quanh Tr\u00e1i \u0110\u1ea5t.<\/p>\n

B\u00e0i 4 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Ti\u1ec3u h\u00e0nh tinh l\u00e0 g\u00ec?<\/span><\/p>\n

H\u00e0nh tinh nh\u1ecf l\u00e0 nh\u1eefng thi\u00ean th\u1ec3 c\u00f3 k\u00edch th\u01b0\u1edbc r\u1ea5t nh\u1ecf, chuy\u1ec3n \u0111\u1ed9ng tr\u00ean c\u00e1c qu\u1ef9 \u0111\u1ea1o gi\u1eefa qu\u1ef9 \u0111\u1ea1o c\u1ee7a H\u1ecfa Tinh v\u00e0 M\u1ed9c Tinh.<\/p>\n

B\u00e0i 5 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Nh\u1eefng h\u00e0nh tinh n\u00e0o thu\u1ed9c nh\u00f3m Tr\u00e1i \u0110\u1ea5t v\u00e0 nh\u1eefng h\u00e0nh tinh n\u00e0o thu\u1ed9c nh\u00f3m M\u1ed9c t\u00ednh ? N\u00eau nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m chung c\u1ee7a c\u00e1c h\u00e0nh tinh trong m\u1ed7i nh\u00f3m.<\/span><\/p>\n

Nh\u1eefng h\u00e0nh tinh thu\u1ed9c nh\u00f3m Tr\u00e1i \u0110\u1ea5t g\u1ed3m : Th\u1ee7y tinh, Kim tinh, Tr\u00e1i \u0110\u1ea5t v\u00e0 H\u1ecfa tinh. \u0110\u00f3 l\u00e0 c\u00e1c h\u00e0nh tinh “nh\u1ecf”, nh\u01b0ng l\u00e0 c\u00e1c h\u00e0nh tinh r\u1eafn, c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn. Tuy nhi\u00ean m\u1ed7i h\u00e0nh tinh trong nh\u00f3m ch\u1ec9 c\u00f3 r\u1ea5t \u00edt ho\u1eb7c kh\u00f4ng c\u00f3 v\u1ec7 tinh, ch\u00fang \u1edf g\u1ea7n M\u1eb7t Tr\u1eddi n\u00ean nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao.<\/p>\n

Nh\u1eefng h\u00e0nh tinh thu\u1ed9c nh\u00f3m M\u1ed9c tinh g\u1ed3m : M\u1ed9c tinh, Th\u1ed5 tinh, H\u1ea3i V\u01b0\u01a1ng tinh v\u00e0 Thi\u00ean V\u01b0\u01a1ng tinh, ch\u00fang l\u00e0 c\u00e1c h\u00e0nh tinh “l\u1edbn”, c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn, kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn, nh\u01b0ng kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang nh\u1ecf. Ch\u00fang l\u00e0 m\u1ed9t kh\u1ed1i kh\u00ed ho\u1eb7c m\u1ed9t nh\u00e2n r\u1eafn ho\u1eb7c l\u1ecfng, bao b\u1ecdc xung quanh l\u00e0 c\u00e1c l\u1edbp kh\u00ed r\u1ea5t d\u00e0y. Ch\u00fang c\u00f3 r\u1ea5t nhi\u1ec1u v\u1ec7 tinh.<\/p>\n

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B\u00e0i 6 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Sao ch\u1ed5i, thi\u00ean th\u1ea1ch, sao b\u0103ng l\u00e0 g\u00ec ? Sao b\u0103ng c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t th\u00e0nh vi\u00ean c\u1ee7a h\u1ec7 m\u1eb7t tr\u1eddi hay kh\u00f4ng ?<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Sao ch\u1ed5i l\u00e0 nh\u1eefng kh\u1ed1i kh\u00ed \u0111\u00f3ng b\u0103ng l\u1eabn v\u1edbi \u0111\u00e1, chuy\u1ec3n \u0111\u1ed9ng xung quanh M\u1eb7t Tr\u1eddi.<\/p>\n
Thi\u00ean th\u1ea1ch l\u00e0 nh\u1eefng t\u1ea3ng \u0111\u00e1 chuy\u1ec3n \u0111\u1ed9ng quanh M\u1eb7t Tr\u1eddi.<\/p>\n
Khi m\u1ed9t thi\u00ean th\u1ea1ch bay v\u00e0o b\u1ea7u kh\u00ed quy\u1ec3n c\u1ee7a Tr\u00e1i \u0110\u1ea5t th\u00ec n\u00f3 s\u1ebd b\u1ecb ma s\u00e1t m\u1ea1nh., n\u00f3ng s\u00e1ng v\u00e0 b\u1ed1c ch\u00e1y, \u0111\u1ec3 l\u1ea1i m\u1ed9t v\u1ebft s\u00e1ng d\u00e0i g\u1ecdi l\u00e0 sao b\u0103ng.<\/p>\n
Sao ch\u1ed5i, thi\u00ean th\u1ea1ch \u0111\u1ec1u l\u00e0 c\u00e1c th\u00e0nh vi\u00ean c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi.<\/p>\n
B\u00e0i 7 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Thi\u00ean h\u00e0 l\u00e0 g\u00ec ? \u0110a s\u1ed1 thi\u00ean h\u00e0 th\u01b0\u1eddng c\u00f3 d\u1ea1ng c\u1ea5u tr\u00fac n\u00e0o ? N\u00eau nh\u1eefng th\u00e0nh vi\u00ean c\u1ee7a m\u1ed9t thi\u00ean h\u00e0.<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Thi\u00ean h\u00e0 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng g\u1ed3m nhi\u1ec1u lo\u1ea1i sao v\u00e0 tinh v\u00e2n.<\/p>\n
\u0110a s\u1ed1 c\u00e1c thi\u00ean h\u00e0 c\u00f3 d\u1ea1ng xo\u1eafn \u1ed1c, m\u1ed9t s\u1ed1 c\u00f3 d\u1ea1ng elipxoit.<\/p>\n
C\u00e1c th\u00e0nh vi\u00ean c\u1ee7a Thi\u00ean H\u00e0 g\u1ed3m c\u00e1c sao (sao ch\u1eaft, sao \u0111\u00f4i, sao si\u00eau m\u1edbi\u2026) c\u00e1c l\u1ed7 \u0111en, c\u00e1c tinh v\u00e2n, c\u00e1c punxa.<\/p>\n
B\u00e0i 8 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Ng\u00e2n H\u00e0 c\u00f3 h\u00ecnh d\u1ea1ng H\u1ec7 M\u1eb7t Tr\u1eddi g\u00ec ? H\u1ec7 M\u1eb7t Tr\u1eddi \u1edf v\u1ecb tr\u00ed n\u00e0o trong Ng\u00e2n H\u00e0 ?<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Thi\u00ean h\u00e0 c\u1ee7a ch\u00fang ta g\u1ecdi l\u00e0 Ng\u00e2n H\u00e0, Ng\u00e2n h\u00e0 c\u00f3 d\u1ea1ng h\u00ecnh \u0111\u0129a, ph\u1ea7n gi\u1eefa ph\u1ed3ng to, ngo\u00e0i m\u00e9p d\u1eb9t. Ng\u00e2n H\u00e0 c\u00f3 c\u1ea5u tr\u00fac d\u1ea1ng xo\u1eafn \u1ed1c. H\u1ec7 M\u1eb7t tr\u1eddi n\u1eb1m tr\u00ean m\u1eb7t ph\u1eb3ng qua t\u00e2m v\u00e0 vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c c\u1ee7a Ng\u00e2n H\u00e0 v\u00e0 c\u00e1ch t\u00e2m c\u1ee1 2\/3 b\u00e1n k\u00ednh c\u1ee7a n\u00f3.<\/p>\n
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B\u00e0i 9 (trang 216 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Ng\u01b0\u1eddi ta d\u1ef1a v\u00e0o \u0111\u1eb7c \u0111i\u1ec3m n\u00e0o d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 ph\u00e2n c\u00e1c h\u00e0nh tinh trong h\u1ec7 M\u1eb7t Tr\u1eddi l\u00e0m hai nh\u00f3m ?<\/span><\/p>\n
A. Kho\u1ea3ng c\u00e1ch \u0111\u1ebfn M\u1eb7t tr\u1eddi.<\/p>\n
B. Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t h\u00e0nh tinh.<\/p>\n
C. S\u1ed1 v\u1ec7 tinh nhi\u1ec1u hay \u00edt.<\/p>\n
D. Kh\u1ed1i l\u01b0\u1ee3ng<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n D.<\/p>\n
C\u00e1c h\u00e0nh tinh trong nh\u00f3m Tr\u00e1i \u0110\u1ea5t c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf. C\u00e1c h\u00e0nh tinh trong nh\u00f3m M\u1ed9c Tinh c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn.<\/p>\n
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B\u00e0i 10 (trang 217 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0H\u00e3y ch\u1ec9 ra c\u1ea5u tr\u00fac kh\u00f4ng l\u00e0 th\u00e0nh vi\u00ean c\u1ee7a m\u1ed9t thi\u00ean h\u00e0.<\/span><\/p>\n
A. Sao si\u00eau m\u1edbi.<\/p>\n
B. Punxa<\/p>\n
C. L\u1ed7 \u0111en<\/p>\n
D. Quaza<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n D.<\/p>\n
C\u00e1c th\u00e0nh vi\u00ean c\u1ee7a Thi\u00ean h\u00e0 g\u1ed3m c\u00e1c sao, c\u00e1c l\u1ed7 \u0111en, c\u00e1c tinh v\u00e2n, c\u00e1c punxa. Quaza kh\u00f4ng l\u00e0 th\u00e0nh vi\u00ean c\u1ee7a thi\u00ean h\u00e0.<\/p>\n
B\u00e0i 11 (trang 217 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Kho\u1ea3ng c\u00e1ch t\u1eeb M\u1eb7t Tr\u0103ng v\u00e0 Tr\u00e1i \u0110\u1ea5t \u0111\u1ebfn M\u1eb7t Tr\u1eddi coi nh\u01b0 b\u1eb1ng nhau. Kho\u1ea3ng c\u00e1ch t\u1eeb M\u1eb7t Tr\u1eddi \u0111\u1ebfn Tr\u00e1i \u0110\u1ea5t coi nh\u01b0 b\u1eb1ng 300 l\u1ea7n kho\u1ea3ng c\u00e1ch t\u1eeb M\u1eb7t Tr\u0103ng \u0111\u1ebfn Tr\u00e1i \u0110\u1ea5t. Kh\u1ed1i l\u01b0\u1ee3ng M\u1eb7t Tr\u1eddi coi nh\u01b0 b\u1eb1ng 300 l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng Tr\u00e1i \u0110\u1ea5t. X\u00e9t c\u00e1c l\u1ef1c h\u1ea5p d\u1eabn m\u00e0 M\u1eb7t Tr\u1eddi v\u00e0 Tr\u00e1i \u0110\u1ea5t t\u00e1c d\u1ee5ng l\u00ean M\u1eb7t Tr\u0103ng. L\u1ef1c n\u00e0o l\u1edbn h\u01a1n v\u00e0 l\u1edbn h\u01a1n bao nhi\u00eau l\u1ea7n ?<\/span><\/p>\n
A. Hai l\u1ef1c b\u1eb1ng nhau.<\/p>\n
B. L\u1ef1c h\u00fat do m\u1eb7t Tr\u1eddi nh\u1ecf h\u01a1n.<\/p>\n
C. L\u1ef1c h\u00fat do M\u1eb7t Tr\u1eddi b\u1eb1ng 3\/10 l\u1ef1c h\u00fat do Tr\u00e1i \u0110\u1ea5t.<\/p>\n
D. L\u1ef1c h\u00fat do M\u1eb7t Tr\u1eddi b\u1eb1ng 10\/3 l\u1ef1c h\u00fat do Tr\u00e1i \u0110\u1ea5t.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n D.<\/p>\n
G\u1ecdi : R_{1<\/sub>\u00a0l\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb M\u1eb7t Tr\u1eddi \u0111\u1ebfn M\u1eb7t Tr\u0103ng.<\/p>\n}
R_{2<\/sub>\u00a0l\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb Tr\u00e1i \u0110\u1ea5t \u0111\u1ebfn M\u1eb7t Tr\u1eddi<\/p>\n}
m l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a M\u1eb7t Tr\u0103ng.<\/p>\n
m_{1<\/sub>\u00a0l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a M\u1eb7t Tr\u1eddi<\/p>\n}
m_{2<\/sub>\u00a0l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a Tr\u00e1i \u0110\u1ea5t<\/p>\n}
L\u1ef1c h\u1ea5p d\u1eabn do M\u1eb7t Tr\u1eddi t\u00e1c d\u1ee5ng l\u00ean M\u1eb7t Tr\u0103ng :<\/p>\n
$\"Gi\u1ea3i$ <\/p>\n
L\u1ef1c h\u1ea5p d\u1eabn do M\u1eb7t Tr\u0103ng t\u00e1c d\u1ee5ng l\u00ean M\u1eb7t Tr\u1eddi :<\/p>\n
$\"Gi\u1ea3i$ $\"Gi\u1ea3i$ <\/p>\n
B\u00e0i 12 (trang 217 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0N\u00eau nh\u1eefng s\u1ef1 t\u01b0\u01a1ng t\u1ef1 v\u00e0 nh\u1eefng s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u1ea5u tr\u00fac gi\u1eefa H\u1ec7 m\u1eb7t Tr\u1eddi v\u00e0 nguy\u00ean t\u1eed neon.<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
a) S\u1ef1 t\u01b0\u01a1ng t\u1ef1 v\u1ec1 c\u1ea5u tr\u00fac gi\u1eefa h\u1ec7 M\u1eb7t Tr\u1eddi v\u00e0 nguy\u00ean neon .<\/p>\n
M\u1ed9t h\u1ea1t c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng r\u1ea5t l\u1edbn n\u1eb1m t\u1ea1i t\u00e2m v\u00e0 c\u00e1c th\u00e0nh vi\u00ean quay xung quanh.<\/p>\n
Chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c th\u00e0nh vi\u00ean do m\u1ed9t l\u1ef1c h\u00fat xuy\u00ean t\u00e2m, c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi b\u00ecnh ph\u01b0\u01a1ng kho\u1ea3ng c\u00e1ch.<\/p>\n
b) S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u1ea5u tr\u00fac :<\/p>\n
Trong h\u1ec7 M\u1eb7t Tr\u1eddi l\u1ef1c h\u00fat gi\u1eefa M\u1eb7t Tr\u1eddi v\u00e0 c\u00e1c h\u00e0nh tinh l\u00e0 l\u1ef1c v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn, c\u00f2n trong nguy\u00ean t\u1eed neon th\u00ec l\u1ef1c h\u00fat gi\u1eefa hai nh\u00e2n l\u00e0 10 electron l\u00e0 l\u1ef1c culong.<\/p>\n
Trong h\u1ec7 M\u1eb7t Tr\u1eddi th\u00ec c\u00e1c th\u00e0nh vi\u00ean kh\u00e1c nhau, c\u00f2n trong nguy\u00ean t\u1eed neon, 10 th\u00e0nh vi\u00ean l\u00e0 electron gi\u1ed1ng nhau.<\/p>\n
Trong h\u1ec7 M\u1eb7t Tr\u1eddi, c\u00e1c h\u00e0nh tinh chuy\u1ec3n \u0111\u1ed9ng tr\u00ean nh\u1eefng qu\u1ef9 \u0111\u1ea1o x\u00e1c \u0111\u1ecbnh, c\u00f2n trong nguy\u00ean t\u1eed neon, c\u00e1c electron t\u1ed3n t\u1ea1i tr\u00ean nh\u1eefng orbitan.<\/p>\n
B\u00e0i 13 (trang 217 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0C\u00f3 ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c sao m\u00e0 ta th\u1ea5y t\u1eeb Tr\u00e1i \u0110\u1ea5t \u0111\u1ec1u thu\u1ed9c Ng\u00e2n H\u00e0 hay kh\u00f4ng ? T\u1ea1i sao c\u00e1c sao n\u1eb1m ngo\u00e0i d\u1ea3i Ng\u00e2n h\u00e0 c\u0169ng thu\u1ed9c Ng\u00e2n H\u00e0 ?<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
T\u1ea5t c\u1ea3 c\u00e1c sao m\u00e0 ta nh\u00ecn th\u1ea5y t\u1eeb Tr\u00e1i \u0110\u1ea5t \u0111\u1ec1u thu\u1ed9c Ng\u00e2n H\u00e0. Nh\u00ecn v\u1ec1 ph\u00eda t\u00e2m Ng\u00e2n H\u00e0, ta s\u1ebd th\u1ea5y m\u1ed9t v\u00f9ng d\u00e0y \u0111\u1eb7c c\u00e1c sao, \u0111\u00f3 l\u00e0 “h\u00ecnh chi\u1ebfu” c\u1ee7a Ng\u00e2n h\u00e0 tr\u00ean n\u1ec1n tr\u1eddi v\u00e0 c\u0169ng l\u00e0 d\u00e3y Ng\u00e2n H\u00e0.<\/p>\n
Do \u0111\u00f3 nh\u1eefng sao n\u1eb1m ngo\u00e0i d\u00e3y Ng\u00e2n h\u00e0 v\u1eabn thu\u1ed9c v\u1ec1 Thi\u00ean h\u00e0 c\u1ee7a ch\u00fang ta.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
B\u00e0i 1 (trang 216 SGK V\u1eadt L\u00fd 12):\u00a0Tr\u00ecnh b\u00e0y c\u1ea5u t\u1ea1o c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi L\u1eddi gi\u1ea3i: C\u1ea5u t\u1ea1o c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi g\u1ed3m M\u1eb7t Tr\u1eddi, c\u00e1c h\u00e0nh tinh v\u00e0 c\u00e1c v\u1ec7 tinh. B\u00e0i 2 (trang 216 SGK V\u1eadt L\u00fd 12):\u00a0M\u1eb7t Tr\u1eddi c\u00f3 vai tr\u00f2 g\u00ec trong h\u1ec7 M\u1eb7t Tr\u1eddi? L\u1eddi gi\u1ea3i: L\u1ef1c h\u1ea5p d\u1eabn […]<\/p>\n","protected":false},"author":3,"featured_media":24590,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1303],"tags":[1428,1427],"yoast_head":"\nCh\u01b0\u01a1ng 8 - B\u00e0i 41: C\u1ea5u t\u1ea1o v\u0169 tr\u1ee5<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/chuong-8-bai-41-cau-tao-vu-tru\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 8 - B\u00e0i 41: C\u1ea5u t\u1ea1o v\u0169 tr\u1ee5\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 216 SGK V\u1eadt L\u00fd 12):\u00a0Tr\u00ecnh b\u00e0y c\u1ea5u t\u1ea1o c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi L\u1eddi gi\u1ea3i: C\u1ea5u t\u1ea1o c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi g\u1ed3m M\u1eb7t Tr\u1eddi, c\u00e1c h\u00e0nh tinh v\u00e0 c\u00e1c v\u1ec7 tinh. B\u00e0i 2 (trang 216 SGK V\u1eadt L\u00fd 12):\u00a0M\u1eb7t Tr\u1eddi c\u00f3 vai tr\u00f2 g\u00ec trong h\u1ec7 M\u1eb7t Tr\u1eddi? 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B\u00e0i 2 (trang 216 SGK V\u1eadt L\u00fd 12):\u00a0M\u1eb7t Tr\u1eddi c\u00f3 vai tr\u00f2 g\u00ec trong h\u1ec7 M\u1eb7t Tr\u1eddi? 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