فيزياء الصف الأول

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: . : ) 1( ) / / / / / / ......... ( ) 2( ) / / / ................. ( : ) 1( . ) 2( . : . : ) 2 ( . ) 1( . : . : ) 1 ( . ) 2 ( . ) 3 ( : ) 1 ( . : ) 3 ( ) 2 ( ) 1 ( . ) 1 ( : \ \ \ \ \ \ . ) 2 ( : \ \ \ ........ : . m L\X\d 1 L 2 m LL A 2 3 m LLL V 3 S t 41Kg 3 Kg / m m / s 2m / s ) Kg.m.s-2 ( N ) ( N . m 2N / m ( 2- Kg.m2.s ) ( 2- Kg.m2.s ) = M / V v = X / t a = v/ t 2a=x/t F=M .a W=F.X P=F /A 2K.E=Mv P.E=M.g.d M v g a F W P K.E P.E 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 : . ) ( : . : . : ) 1 ( 2 (. ( Analog . ( ( 3 Digital . :)3( : ) 2 ( ) 1 ( . :) 2 ( : ) 1 ( :2 . : . : ) . ( m : . : .3C05B001 A : . : ) . . v=X/t ) ( m/s : ) 1 ( : ) 2 ( : - : x :v X Xt t 4 5 . ) 2 a = v / t ( m / s : X X2t t2X X2t t26v VVO Voat + Vo Vt +t V-o vo + + t = av (( =) V ) a 2 t 22 : =vt - voa.tvt = vo + a . t :X = V av . t= X.t= X. t= X t.72VO 2aVtVo t vV- 2 v O + Vt t o =2 t 2 2 2avt - vo a a(= X+) . t2 X = Vo t + a t :X = V av . t= X. .= X8Vt 2 - VO2= 2axVt 2 = VO2 + 2 a X91V2V : . : . : . . . . : : = ) 3 ( . ) 2 ( ) 1 ( : . , :1m1 / m2 = v2 / v 1( m1 = m2 ( v2 / vif m2 = 1Kg) 1m1 = ( v2 / v 1 m 01 ) ( Kg.m / s : : PLPL = M v : PL PL = M V : M V / t = P L / t = F : F = MV/t = PL/t : . : F = P L / t = M V / t = M V / t ) F = M ( V / t . but ( V / t ) = a F = M.a 2Kg . m / s : 1 ) 1 2(m / s :1M1 / M2 = a2 / a ) 1M1 = M2 ( a2 / a if M2 = 1Kg ) 1M1 = ( a2 / a 1 m : 11 : . - .F( g ) = M . g M = F/ a . . : . : 2F1 = - F : 1m1/m2 = a2 /a .21?????? ????? A ??????? ????? r Vo ???????? Vo X Br????? ??????? ????????? ?C ?V Vo V o : : : 1 - = AB AB = VO . t But a = v / t v = ac . t : v / vo = AB / r . (ac . t) / VO = (VO t) / r 2ac r = Vo ac = Vo2 / r Fc = M . ac . ) Fc = M . ( Vo2 / r312M1 .M1 2. M M 2d2 d : : 1 ) 2( M1 & M 2F 1F 2 ) ) d d . :2F M1 . M2F 1/ d F F = G G ) 76.6 01-11 ) :2N . m2 / Kg : : . : 1 1 .21F1 / F2 = d22 / d F :2d 41??? : re re re? hre re h : + cos = re / ( re + re = re cos51 008 . (h2.7 / 063 = 008 / 2 re h cos re = ( h cos ) / (1 re 2 / 800 = 50 / 1( cosre = ( 800 50 ) / 2 re = 6.36 10re = 6.36 10 6 m 6 m161 . Me??????M2 ?????? rM1 . Me 2re 2re 1 M 1 . re Me re :F = GF = M1 . g 1.g = GMe = g . re 2 / G . : :3 V = 4/3 re=M/V M & V . : : g = G :71g 1 / g 2 = ( M1 . r22 ) / ( M2 . r12 )18FNFNFgFg sin ?Y :FgFgCOS?X = Fg = FN : F sin FN Fcos : 1 Fcos Fsin Fg & FN2 09 3 Fsin Fg :91 W = . : W = F . X Joul : 1 1 W = F . X . COS .w=f.x 09 = 081 = 0=W 081cos = W =F . X . COS : ) ( : : 02 = FFgCOS? FCOS F SIN F Sin F F SIN 122A VVt2 = Vo2 + 2 a x 0 = VO V t2 = 2aX 2a X = V 2M a X = M V 2F . X = M V W = M V2 = K . E 2K . E = M V ) 2 ( : : : W = F d cos if 0= W = Fd but F =Mg W = M g d = w P.E : : 2Yd)1(1Y M1B VP.E = M g d : : A21K . E = M V 1P . E = M g Y : B K.E2222= M V2P . E = M g YV22 V12 = 2 g d 1 ( d = ( y2 - yM ) 1 M V22 - M V12 = M g ( Y2 Y 1 M V22 - M V12 = M g Y2 M g Y : (-1 M V22 - M V12 ) = M g Y2 M g Y : : :2 M V12 + M g Y1 = M V22 - M g Y ) + ( ) = A + ( B322V1V ) : ( PL . : PL = M . v . : a = v /t but )F= M .(a )F= (vM/t M : )F= M .(v/t F = PL / t : . 42?Mv ?t : 1- 2- . 3- . : . = F :t = Mv F t M v Iimp :FIimp= FtN.S Kg . m / sIimp = M v :1 = 2 - 3 .52 : . . : : : 5.2 24 : : . : 1 2 62 : . M v2 = M g r e v2 = 2 g re v=2 g re v 61.11 / : : 1 722 3 = . 4 00063 .82 : . :F=M.g : . ) Fc = M . ( Vo2 / ro :g = Vo2 / ro 2Vo Vo= g . ro = g . ro R o = re + h ) ( T .T = (2 ro ) / Vo92Me .Mmo 2rov ) ( o : F = Mmo Vo2 / roF = G :2Vo) = G ( M e / ro G ( M e / ro ) m / s ) G ( M e / ro= Vo = Vo ': g= Vog . ro03 :) 2'g = G ( Me / ro13 : :23? 021 :? 021 ) ( m : : )=(m ) 1 ( ( ( Fg ) ( Ft : = Ft Fg ) 2 ( : ? 021 = Ft Fg ) 3 ( ) : ( a Ft - Fg = M a Ft = Fg + M a ) 4 ( ) : ( a Fg - Ft = M a Ft = Fg - M a a = g ) 5 ( ) : ( g : Ft = Fg - M g 0 = : Ft .33?????? ????? : ) 1 ( :????? ????? : ) ( . : 2 - 1- 4 . 3 ) 43 ( .53 : F K C 372 + K = C 372 C = K ) 23 - C = 5/9 ( F 23 + ) 5 / 9 F = ( C : 01 , 01 . ) ( 63 730Xt - X - 001 X 0 X 001 = t : X R X L P X83 : . = ) ( Q : 2 . 1 M . 4 . 3 - . t q : 1 . C th : 1 1 . :Q = M . C . tq = Q / t q = J / K ) C = Q / ( M . t93. Joule : q : CthC = J / Kg .K q = M.C : q J / K : q , C04 : ) 1 ( ) 2 ( )1( ) 3 ( )2( )3( . :Lth 1 = M . Lth = Q/M J / Kg : 43.3501 / Lth : Bth 1 = M . BthJ / Kg : .= BthQ/M14 )( ) ( :) 2 ( ) 1 ( : . :( )d) 1 ( .24() 2q1 , q) 2 ( ) 3 ( .342q1.q 2d2q1 . q 2d : F q1 . q2 F F = K2F 1/d K 9 901 K ) 2) N . m2 / C : 44M 1 1M2 dd 22M1 . M2 M1 . M 2d 2d : . : . : 1 . ) ( m : F=M.a .a =F/M (N ) Kg a = F 1 = m ) : ( g F = M2 . g F =G :M2 . g = G g =G Me re :g =G 54 M d : W = F. d W = M.g.d ) ( P . E P . E . P . E . : (P.E)= Mgd (P.E)/M=gd ) ( P . E / M V V = (P.E)/M = Mgd 1 . ) ( J / Kg : = 01 J/Kg ) : ( g g = V / d ) J / ( Kg.m = g g g g = V / d g = F / M g = V / t ) J / ( Kg . m N / Kg 2m / s 64 ) : ( = F/q)(N/C : 1 . = 6 N . C : 1 2F = K q / d ) ( N/C : : 1 ) .( V V = W / q J/C W = V. q J : 5 . : 1 1 . : 1 1 : )V =K(q/d V q V1/d V q / d )V=K(q/d ) ( ) :( V74(=K ) 2q / d )V=K (q/d : /V=1/d =V/d ) ( Volt / m : : C Q ) (V C= Q/V : f 1 / 1f = 1 c v : = 005 f : 1 005 . : v V = d :84 ( ( I . : I = q/t ) ( C/s q=I.t : : 1 1 . 1 / 1 ) ( V ) ( : : 1 . 2 . 3 . " ". 4 " " . : 1- 2- 3- 4- . ) V ( . :94VBR ) :( R . R = V/I ) Ohm ( : : 1- 2- ............................... 3- = 5 . 4- 2.0 . : . : ) ( I ) ( V : 3VB = V1 + V2 + V R 3R = R1 +R2 +R ) ( V : V = I.R .051R 1V2R 2V3R 3V51 : . : W = V.q q = I.t W =V.I.t But : V = I / R W = I2 . R . t But ) ( JouleI=V/RW = ( V2 . t ) / R : V I t25 ) ( k.w.h 601 6.3 = 06 06 1 k . w . h = 1000 w JPw Pw = W / tBut W=V.I.t Watt Watt .Pw = V . I : Pw1- 2- : = X X : 5.1 5 . 8 . 35 :1- . 2- . 3- . 4- . 5- . 6- . : . : .45