1.4 运动快慢与方向的描述 速度（教案）-【校本教材】2020年高中同步教与学物理（科技版必修1）

书书书 !"# ! $ % & ' ( ! ! " ! #$%&'()*+, ! -. " !"#$% !! !"#$%&'() ! *+()',- ! ./ ! 01 ! 23 ! 456 ! "! !"78()',- " 9:./;<#$%&'78() ! #! !"=>()',- ! $! ?@ABC'78()D=>()EFG ! %! *+()D(HIJKL'@A " MNOPQRS'() ! " &'#() !! $9TUVWXYZ[C'#!5 " $9\]'^_ " $ `:abc-#!5'^_ ! "! d>efgh$`i*()',-Dj: ! #! k]lmn&Sopq78()'!" ! eflnS'g rst78()'uv6 ! $! k]lmwxyzS{|}9=>()~78()'� � " d>��}��v'�� � � � } 9 � ] ~ # ! w � � ' ^_ " ������=>()'c- ! " *+,-#./0 !! ef���]�OP��'() " �i*\]'�bDj : ! "! �"�78()�=>()'��^_ " $9�]~#! �'�� ! #! ��]lMN #'¡¢ # £¤2¥¦§ ! ��]l'¨ ©�ª?« ! " 12 () ! =>() ! 78() ! (H¬YFG " J¬YFG­� '@A ! " 32 q=>()FG'®¯~!" ! !"#$ %&'()* +,#$)- ./0"12 3456789:;<? =>5?@ABCDE:? FG=>5HIDE:? JK=>5LMDE:? FG=N5LMDE:? 345678：Δ = -x x x 2 1 Δx Δt =>5?@: =v BC： m/skm/h cm/s FG=>：QRSTUVW KXY5CZ[\&]WC Z^_KX5`a JK=>:DQRSTUVb Kc(dVbCe)5=> FG=N：STQR5 fg[KX5`a h%ijkl 1、2、3、4、5、6、7、8 / ! 01'01*234 !! " 56 " # °�VW#$'%& " ±L²³�´�µ¶·'] � " ]��VW%&'¸YFG " ¹º»¼½¾¿¸YFGÀ $ " 789: # BC ! ÁÂ� ! ÃÄ� % >� ! >Å ! 3ÆDÇÈ ! " 56 # # É#$Ê�Ë%&> " ±L¾:ÌÍ^_VW#$ 3Æ' $ " 789: # :ÃÄ� ! mÃÄ�S " ~ÎX>Å " ! qj'C # ! RÏ " ! >Å#$'3Ð " ~ÑX>Å " " qj'C # " RÏ> Å " " #$'3Ð " Ò ! #&# " '# ! " ÓRÏ� " ! ¥ " " ÔÕ>�Ö '3Æ ! × # efØÙÚÛ " ܯÚÝ~]l'ÞßfÈ ! " 56 $ # ±L²³*+3ƾVW#$3Ðàá'#!5 " ?â?s " #$'3Æã¹ " #$%&½Óãä $ " 789: # â? ! å°#$'%&äæ~%&'>�Z� ! " 56 ! # çÍ " TUèVW#$%&'äæ $ & ÚÝéê]lä(ØÙÚÛS'ë$ìÄí ' ( ! ( !"#$%&' ! ()%* ! %+ " ,- # î�ïí # ðVW#$%&'äæ " ñ¶·ò9]¥¿óF G & #!5 '$ " ;<'=> # " ?@ " # I ) ôõö÷ * °r " %&øÁoö÷'÷+¾ù� ' " ú?st ) ÃÄ * ~ ) ÃÄ'àá5 * ZUâd " ûZU�� $ " ;<9: # ÃÄ:èRÏ3Ð " ÃÄ'àá5RÏ3Æ " a T " %&ømüC'3Ð ! mýC'3Ð�mþÈSC'3Ð & %( ) ÿ ' E " !"Im#$ÃÄ� % : Ã Ä � & ' C è R Ï " � m �üC÷¥ýC'ÔÕfÈ S " % & ø ' 3 Æ " I : ü C D ý C�'ÃÄàá5èRÏ ! " ?@ # # T' " :�(RÏÃÄ~ÃÄ'àá5 " ?):� (RÏ>�'àá5 $ " 56';< # " ?@ $ # 'S*+ & BC ' m,¿Y^,%& $ " ?@ ! # T-*+.ÃÄ(,Ñ/XY^,%& " 3Æ ! # ¾0b»¾1b $ " ABCD # *+m. # (0^,%& " 'Ï*+�ÃÄ # ! &!() " m³fXÕ>�­% " ¥2ÃÄ # " &#() ÿ " Ò ! #&# " '# ! &#()'!()&"() " 3Æ ! # # ( " RÏ3Æ'^,. # ( 0^, ! 34 # ÔP�]RW~gh'#!56wX7 " T # *+.ù