                   ! " #  $% !    &"'  ('&                                          !    "     #  "   #  "$      "   %#  "    "        &"       "  '  "  (              )       "    #  "  "     "  "*  "+*  & $        "             "   &' ! )  & , -#      ".     !  "  "     )       "      "    ."  $#   &* ! (  (  +*  ,    (& & ! +  -  . /&#  0  &     +*  (' !   1   +*  (' !   ( *  ,' 2 3 /0  "        "  " #  "       1 /0#     !     / #  "    $       1' #      (    !  1 /2#  "3!     "       " #  "    "     '   !  )        "      "  ""   "  -0     %4-5("  ""  3      "$        "    "  *   #    -  !       #  "  .         /2    " #  "       $    "#  "   1 /  "      !        " #  "       $    "#  "        $  #  "   +*  4  0 ! ' 5    0(' ! +*   (6(  + ! 067' 8 +   /-  "+  !        " #  "    ' #  "  (      /4."  $#     !   /46+  "           -    !   /  3.  "  $   #      /-  #."  $  '!         6,2( /     !  "3.       "# /4.  "  "3 #  -7 /4."                  &'9+*  (&   + ! 0& &' ! +*  (& -      " #  " '  "*  "$      ( $  .  "     "     #  "  .      #  "   "3"   /&  + ! 0& 5  " #  "       $    "#  "       "       #  "  .     !     '*  .             "  #  +  ( :&;' 8 +  & #  +  +"#  "        "      "#  "       "    "   #  "  8         $              &  (<  (+  1  =4  (' ! 1  =5* 7 > 3 :   1 /      3  "   -7 /"       "    #  "   "  #  "      "   "  )    #  +  +"#  "        "      "#  "       "     "  #  "   8        $             /-  3    ""   !     #  "              #  "   1 /2    #          "'#.  ( "  "    "  "      "      ) /      3  "   -9 /0  "      )       "      " #  "    "         1 /-    479 #  "     $    $    :   "  :  5     $    !         "3     $  $  "3   # / #    #  )        "      "#  "   "         "  #      " #  "       !   !  "       "   #  "     #  "    /  #  )       "       "#  "  " *  "+*  "$  "    1 5      "   "     "    "3   "    ""  "+   $  ' 3  ("    "   "  "  1   +*  :4  0 ! ' (  (<  (+  1  =4  (' !  1  =5* /;#  "  !    )        "      ""             "#  "   "            /4.  6,2 /4."  $  "3         ' #  "    "   $  #  "    " #  "       "  *   !  .( /4."  $   /4.  6,2"   $  #     1 /-    !   "  :)   :&       5)   9"  "    ':)   :( "        '4   <( /;  "      5   )    *  9"     =      = /-        5)  9"  "    "   5'9=&9(   -> 5   ) 5 ) ?   +*  ?4  0 ! ' (  (<  (+     & &@  -  00*  (1     (+&     "   '    (   #  ""   #      " #  "$          "   !"    $     "  )         )     "     #  " *    !    "   "    !       "   #  "$        #  "'@(5 : /&    +*  & ,  9"  :)&:   "   "    "  "         :$     "       <5 :4) 9 /5  )       "       5"$  "     1 /-      $  9  $     .   /-  3  "  -A&       "      "     "     #  "       "B  ?C- >  "#  $    " "      ?$     "     /8  )       "      " #  "  "  "             $           "           "       ;  !    "    #     "    "  D-  " "  !  $    "     8  /      /-  ""       )3       $  E#       7=+  " #  E$     "  '    $     "  (  )     "    )3*  "#          !          )       "  )3   /  .+         "     !  !           "   "  "    "   1 /-    ".       "  ..          "       "  )3     7=+  "  "  "     "      $   "      1 /5  "  $  "     "*  "#  "  "   8  "F =(' ! +*   /-  #.  "  $   /-      "     "         #  "    "       >         "   /4    "       $  $  )3*  " #       /C    "    " "    "*  "#     F"    "    /4."  "  '$#    .   "       "   *  "#  ( /;#  "$      "     *      #  "$       "  F  "     /4  "      +3  + )       "     #  "4    +3  +   )       "        )       "          #  " *  "    "    "    "  #  "   &  (<  (+     =(' !  +*  & &"*  (  1   +*  *  & 5  "  '*     "  ($  "       "*  "#   "  8  "   "  "     "  *    "        /&  + ! 01     & @&  7'(  '& 4G-   #  "$       "      "   F     A "  "  "  "     #  "*  "#       /-  3  "  -B     "    "     1 /H    "    "   *  "#    F"   "    "  4   6,1 /-    "  #    "   "    1 /%#  "  "    F    1  .+   !      1 I4G-   #  "     "      "          8     "   4G-J4  "    @8     A3   +*  >' ! (*  6,B  ,  /, "  $    !      *    "$        "    F  "   -              4G-      48F  "     "   /;    $    "#  +    +#       #      "  +"3'$     "           ( @&C'  5  0&        /#  /$% !   D !   $ &"'  ('&                    "*    ;#  !    "  "          +"              "#  +      ,        "         "*        !    ;3      "  "     K"        "*      "  ""#  +"""    "   #    "      "*    ""  "    *  ++   &' ! )  & 4   3  999A"#  $   5  ".    "#  +       "*     &* ! (  (  +*  ,    (& &E ! 0=)  (' 8 &F:3G -#  "  $    1  )       "      """  "  $  1 %#  "  "           1 /&#  0  &    +*  (' !   1   +*  (' !   ( *  ,' B  EL 7= L /;#  "  "         "  "     1-"  "   #  "  "  18   1 /M  $  +N"       " "   #  "     "3   '/(    "   "        "  '/(   "     "    .   /2                  #        $     #  "  "  "!  "     "   #  "     "  $    "     .     #  "  "   /-  ""    $     0N!             1"     "1 /    .  $       3  "  "    "   ""         "      1 #  )3  "  "    1 /-         )3""F       "  "#   "  "      "  "   "  "                "         $     ".  "  "        /;#        $     1 /"    $       "*    1 /-      "            +*  -   5    01  1  *  ( =')4  (' ! (' !  +*  & /4.  $    "       "  $  #      /-    "3!      !#  $  3       "     "   /           '  )3)O3$$$* "  "         +(,$         .     "*   '"    "   ( /4."    "  "     "    #  )3  " /-"  "    C     = '7(   +*  /4  0 ! ' 5    0(' ! +*   B ! +  '1  7' 8  +  ++  ((' !  (' ! +*  B ! +  '& /-    $*  3" "  "  $  #   /4..  "  $   '    "*    ( /0    "  $     #      @-    "*     $        "        @-    "*     $      " &' ! +*  B ! +  '& &*  (+*  =')4   = Quãngđườngđiđược Tốcđộtrungbình Thờigianchuyểnđộng     = 8   P.*  PD /&' ! +*  B ! +  '& -    "*    $             $     "*  F  "    "   "        :&;' 8 +  ++  ( =(' ! +*  B !  +  '&         = =     "*           ."   $  "#     "       " = 7Q L +    "   "    "    $            1;  !         #        /G               !  "1 /, "  $           "*     @-    "*     $             $    "*  F   "    "   "        /     "*           ".  !  "#  "   "         /-   !          "*    1 /G             "*       *      1 /;#    9     "*        "           " "    .3         )  /-  3"    6,2   "    +"         "*     "1 /-  3     "+"       #  "      @47-    )#  " +  ""       "     ') Q JQ(,  "  '"J Q($  $  #  "  *  "#              "        '@(  "  "    @49-    )#  "   "*    "        /,#       /     !   /  '7(.        = = /     "*           ."  $  "#      "      "   +*  :4  0 ! ' .=4  (' !  +*  1  +*      +*  H   (' ! (' !  +*  B ! +  '& /  6,2       )#!  +"       "*     Q Q      = + = +  '9( /4."  $#       "    #      /"    .  J) @ /  3  +!     "  "         "   &=4  (' !  +*  1  +*      +*  H   (' ! (' ! +*  B !  +  '& &=4  (' ! +*   B ! +  '& Q Q       = + = + /&*      +*  H   (' ! (' ! +*  B ! +  '& R +  ""       "     ') Q JQ(,  "  '"J Q($  $  #  "  *  "#              "        '/(  "  "     /8    !  "  .   +  "    "       #  "       "     "  "  !     "  "    K"   /%"  '9(  !   "  "    .    " "  1 /;   3    "  "    K "         "*        "     ""   /,    %  $#  +  ') "(         )       "  "  "       "    $  "   "  '"(  "  " $  "  "    ')( @8  "  "  "   "  3  !     9+   /    "  "    K"          "*    "  "       1 /  " 3  9  "    9     "*       "    "   "  "    "  "  "   +           "     9       ,  .  9  "    *  " "    "   @;#  $  "      )       "         *  +  1 @H    "           "     +"  '  *    "( $#  +  ')"( @;3    "  "    ): )       "         "  "  "                    /-"  ".  +  "     "       #  "        "   /4      .3   *  + /-  $"  "    .3  )      "       "      9     *  + 7Q L   +*  ?' ! (*  6,B  ,  & /, "  $    !"     /-    "*    $    1"  "           +"           "*    1 /;        $    "#  +"6,2@6C   #      "  +"3 @&C'  5  0& E        : #  :$% !   D ! #   !   $ &"'  ('&    ;  "  "          3     3"  ! #  "  "  "              $   #  "$  ""               "*        !#    #  !#     ;  "  "  "   #  "   3      "   #  "  K"  "     "*  !#       #  !#     ;  "  "  "       *       +       $    "  "     "*  !#    #  !#     ;  "  "  "           +"      "     "*  !#    #  !#        ,      "           "*         &' ! )  & C  '7  !    77        77    #   #( &  =4   ! ,  & & ! +   /&E ! 0=)  (' 8 &F?3G ;  ""  "           +"             "*    1 :&#  0  &     +*  (' !   1   +*  (' !   ( *  ,' 7L NL /2)3  "     "*        "   #  "  "    "  "  " .3    "   #  "  "       !  !    #  "     "    "     ")3 #  "   "    +     "*     ';>  )3$*" *  "+*  (;#   $  "        "       $         1 #  "     "    )    $     1,  "    "   +*  * ! (  ( 4  '*    (  .& /-    $*  3.     +*  /4  0 ! ' 5    01  *  (  (   &' ! +*   B ! )  +* ! +  '& &@  *  (  (  & ' ! +*  B !  )  +* ! +  '& &*  -  (' ! 1  *  (   (  & s v t ∆ = ∆ '7(  $    $      #  "  "  "     #  ""    "   @-"  ""      #  "     N   "    1 /5   #  "+  !        #  "  "   "  1;#   #  "  "  "   $    1 /5  " #  "     "*         ""    5     )3     #  "  " +  $    1 /  .+  )3  "      #  ""   "  #  "*   t ∆ 1-   "    +!  "       "   #  "  1 /;#  "  "  "     "  *  "    1 S        1 /;#  "  "  "    +   "             !    "     1 /-  3  "  -7 @,      "  "   "      )3   "7 /-  3    96,2     ""  .   #   "  "  "  $    "   $   3"1 /,#       3" #  "  "  "   /-  3  "  -9 /-  "       *            "*     "  "  "  #    "       $             $            #   "  $    -   "  "    "       *     #  "   "  "      "     /  6,2  "   $   @  "   #  "*   t ∆   "  $    5 )3!      "      s ∆ $   /"     #  "  "         "  !  "  "   #   "  "     "*     s v t ∆ = ∆ '7(  $    $      #  "  "  "     #  ""    "   @-"  ""       #  "     #   /-  +  "   /-  #  "  -7 /4.  6,2  "  $   #      /-  #.$  -9 /  6,2  "   $    #      /-  "  +#     "*         "      "*   #   /&@I(1  *  (  (   & ;3" #  "  "  "     7 #  ""    "  $     " 3"    "   #  "                        !  "  $       $     ;"3  ""   )       :&' ! +*  B !  )  +* ! +  '& /     "*           $     #  "  "  "   *  "*  *       "3"   /-        $      #  "  "  "  "*   "3"    $       "*   !#     /-        $      #  "  "  "       "3"    $       "*  #   !#     I-        !   " #       $       % # &  %  ' # " (    !       T 7Q L   "          /      $       "*        1 @G           18  $     #  "   "  "  "  "     "  "       1 /-  "  +#     "*         "    !         1 /, "  $           "*        I-        !   " #       $       % # &  %  ' # "(     !       /           $*"  0#   .  $    "   #  "  "   "  "    "  #  "   "   /-  3  #  )3  "       "  "     /-  "  $   #  "  "  "   "        "  "1 /,  "    $"* "  "        /8  "  "  #  " #         "*    "     "!       #  "   /8          "*      "    !          #  "    "  "  #  " #         1 /;#    "      "        $   "  ;#  "     "  "    1'"   !#            "*  #  !#        +*  : (  '5    0*  ( =(' ! +*   B ! ,  +  '& /G.  ", "     $    "   /    "   #  "   "  "  "  "     "   /;#  "  "  "  $ "* /2   /2&;   #  "  $ "   /4."  $#    )# !    "     "   0 v v v∆ = −     " '"*( #  "   0 t t t∆ = −   "   0 0 v vv t t t −∆ = ∆ − /2  6,2"#  + "  "  $#   ;#   v a t ∆ = ∆ '9(,"         $     $  )    *   ".         "   #  "        "   #  "     "-     $  P. 9  /0  ;  "   +  "      #  "   "  $    $   3" /;   U Q  v ∆ r    &' ! +*  B !  ,  +  '& &*  (=(' !  +*  B ! ,   +  '& &E    0*  (  v a t ∆ = ∆ '9(,"         $    $   )    *  ".         "   #   "       "   #  "    " 0 v v v∆ = −     " '"*( #  "  "   "   t ∆ ' 0 t t t∆ = − ( /,"         " #  "     "#   "3"  -     $  P. 9  )&@I(*  (& ;   #  "  $    $   3""    $    $   3" 0 0 v v v a t t t − ∆ = = − ∆ r r r r  0 v r  v r  0 v r  a r  v r 2 #  "-8>8 3" "         #  "       +     "      +        3" #  "       !  "  $       $    "   "3  ""  )       7Q [...]... thức: Giúp hs ơn la i ki ́ n thức về sự r i tự do, chủ n đơ ̣ng tròn, tinhd tương đớ i của chủ n đơ ̣ng b Về ki ̃ năng: Có khả năng gia i mơ ̣t sớ ba i tâ ̣p đơn giản có liên quan c Tha i đợ: Trugn thực trong khi gia i ba i bâ ̣p II Ch̉ n bi ̣ Hs: Ơn la i toàn bơ ̣ ki ́ n thức của các ba i để phu ̣c vu ̣ cho viê ̣c gia i ba i tâ ̣p, là trước các ba i tâ ̣p ở nhà III Tiế... biế n đở i đề u c Tha i đợ: Ham thích ứng du ̣ng ki ́ n thức vâ ̣t lí vào viê ̣c gia i ba i tâ ̣p, và các trường ho ̣p có trong thực tế II Ch̉ n bi ̣ * Ho ̣c sinh: Ơn la i toàn bơ ̣ ki ́ n thức từ ba i 1 đế n ba i 3 làm tấ t cả các ba i tâ ̣p (khơng nhấ t thiế t pha i đúng tấ t cả) III Tiế n trinh giảng da ̣y ̀ ̉ n đinh lớp 1 Ơ ̣ 2 Ba i tâ ̣p T Hoa ̣t đơ ̣ng của giáo... ng biế n đở i? CĐTNDĐ? 12 - Viế t cơng thức tính vâ ̣n tớ c, gia tớ c, quang đường i đươ ̣c và mớ i quan hê ̣ giữa ̃ chúng trong CĐTNDĐ? - Về nhà làm BT và ch̉ n bi ̣tiế p phầ n còn la i của ba i IV Rút kinh nghiêm ̣ Ngày soa ̣n: Tiế t 4 ̉ ̉ ́ Ba i 3: CHỦN ĐỢNG THĂNG BIÊN Đ I ĐỀU (tt) III Tiế n trinh giảng da ̣y ̀ ̉ 1 Ơn đinh lớp ̣ 2 Ki ̉ m tra ba i cũ (5’) Cho biế... u Gia i đươ ̣c các ba i tâ ̣p đơn giản về chủ n đơ ̣ng tròn đề u c Tha i đợ: II Ch̉ n bi ̣ GV: Đờ ng hờ (kim quay); qua ̣t bàn; đia quay;… ̃ III Tiế n trinh giảng da ̣y ̀ ̉ n đinh lớp 1 Ơ ̣ 2 Ki ̉ m tra ba i cũ (4’) - Nêu các đă ̣c i ̉ m của sự r i tự do? Viế t cơng thức tính vâ ̣n tớ c & quang đường i đươ ̣c của ̃ sự r i tự do? 3 Ba i mơ i T Hoa ̣t đơ ̣ng của giáo viên... b Về ki ̃ năng: Gia i đươ ̣c mơ ̣t sớ ba i toán cơ ̣ng vâ ̣n tớ c cùng phương Gia i thích đươ ̣c mơ ̣t sớ hiê ̣n tươ ̣ng liên quan đế n tính tương đớ i của chủ n đơ ̣ng c Tha i đợ: II Ch̉ n bi ̣ GV: Ch̉ n bi ̣mơ ̣t TN về tính tương đớ i của chủ n đơ ̣ng (nế u đươ ̣c) III Tiế n trinh giảng da ̣y ̀ ̉ 1 Ơn đinh lớp ̣ 2 Ki ̉ m tra ba i cũ (3’) Nêu những đă ̣c i ̉ m và viế t cơng... làm tấ t cả các ba i tâ ̣p trong SGK - SBT (từ ba i 1- ba i 3) tiế t sau chúng ta chữa ba i tâ ̣p IV Rút kinh nghiêm ̣ Ngày soa ̣n: Tiế t 5 BÀ I TẬP I Mu ̣c tiêu a Về ki ́ n thức: Củng cớ la i ki ́ n thức về chấ t i ̉ m, hê ̣ qui chiế u, chủ n đơ ̣ng thẳ ng đề u, chủ n đơ ̣ng thẳ ng biế n đở i đề u b Về ki ̃ năng: Có ki ̃ năng gia i ba i tâ ̣p vâ ̣t lí về chủ n đơ ̣ng... các ba i tâ ̣p IV Rút kinh nghiêm ̣ Ngày soa ̣n: Tiế t: 7 Ba i 4: SỰ R I TỰ DO (tt) III Tiế n trinh giảng da ̣y ̀ ̉ n đinh lớp 1 Ơ ̣ 2 Ki ̉ m tra ba i cũ (4’) ́ u tớ nào ảnh hưởng đế n sự r i nhanh, châ ̣m của các vâ ̣t trong khơng khí? Sự r i tự do là gì? 3 Ba i mơ i T Hoa ̣t đơ ̣ng của giáo viên Hoa ̣t đơ ̣ng của ho ̣c sinh Nơ i dung G 10 - Làm thế nào để xác đinh Hoa... TN - So i vơ i nhiề u ki ch cỡ khác nhau, giấ y phẳ ng nhỏ, bìa phẳ ng có khớ i lươ ̣ng lớn hơn hòn so i nhỏ - Sơ i dây do i và mơ ̣t vòng kim loa i, tranh vẽ ảnh hoa ̣t nghiê ̣m III Tiế n trinh giảng da ̣y ̀ ̉ 1 Ơn đinh lớp ̣ 2 Ki ̉ m tra ba i cũ (5’) Chủ n đơ ̣ng như thế nào đươ ̣c go i là chủ n đơ ̣ng thẳ ng nhanh dầ n đề u? Hay cho biế t kha i niê ̣m gia tớ c... ba i tâ ̣p trong SGK, SBT nế u còn thơ i gian (kể cả các câu ho i trắ c nghiê ̣m) 2’ Hoa ̣t đơ ̣ng :Củng cớ , dă ̣n dò - Các em về nhà là tiế p các ba i tâ ̣p còn la i và ch̉ n bi ̣tiế p ba i tiế p theo IV Rút kinh nghiêm ̣ 17 v '− v0 a Ngày soa ̣n: Tiế t: 6 Ba i 4: SỰ R I TỰ DO I Mu ̣c tiêu a Về ki ́ n thức: Trình bày, nêu đươ ̣c ví du ̣ và phân tích đươ ̣c kha i niê... Biế t cách tính sai sớ của 2 loa i phép đo: phép đo trực tiế p và phép đo gián tiế p Viế t đúng kế t quả phép đo vơ i các chữ sớ có nghia cầ n thiế t ̃ Vâ ̣n du ̣ng cách tính sai sớ vào từng trương fhơ ̣p cu ̣ thể c Tha i đợ: II Ch̉ n bi ̣ Mơ ̣t va i du ̣ng cu ̣ đo đơn giản (thước đo đơ ̣ da i, ampe kế ,…) III Tiế n trinh giảng da ̣y ̀ ̉ 1 Ơn đinh lớp ̣ 2 Bài . '& &*  (+*  =')4   = Quãngđường i ược Tốcđộtrungbình Thờigianchuyểnđộng     = 8   P.*  PD /&'. ∆ − &apos ;I( @$#    "     "    " Q '" Q JQ( t t ∆ = @   &apos ;I(  0 v v a