www.ebsi.co.kr 2 A A 1 133 Cs 1 11 1 A C C A A B A B 15 A C 30 A B A C B. 1m 1m A. 1 C.1m P k A B u k GPS GPS GPS GPS 4 2
www.ebsi.co.kr A B t B A ;2!;t v v= = (3_t)+(6_0.5t) v=4 m/s t+0.5t 3 m/s 6 m/s 3+6 v = =4.5 2 (m/s) 3 m/s 2 4.5 m/s 4 m/s 0~3 t 6d3d 2 0~3 t 6d 3 t~5 t 2d 0~5 t 8d 0~5 t 4d 5d A A B B (+) AB våı=vı-vå=10- -15 =25 m/s 25 m/s A B 1 25 m A B 40 40A s A =15_40=600(m) B s B =10_40=400(m) A B 600 m 100 0.2 m/s 0.1 m/s 400 400 0.1 m/s v =5 m/svœ=30 m/s v :vœ=1:6 0~3 1~3 a 30-5 = =12.5(m/s ) 2 A C 110 m 55 m 2 50 m B A B 2 30 m/s5 10 m/s 30+10 2~5v = =20(m/s) 2 80 (m) 60 40 20 0 30 (m/s) 20 10 100 200 300 400 500 (s) == 0 1 2 3 4 5 (s) 0~2 =;2!;_(20+30)_2=50(m ) 2~5 =;2!;_(30+10)_3=60(m ) 40 m =0.1 m/s 400 s 3
18 m/s 18+0 0 v = =9 m/s 2 9 m/s 6 s=9_6=54 m 1 3 m/s 2 v =18-6=12 m/s4 v =18-12=6 m/s t A B 5 A B 15 m/s (m/s) 30 20 10 0 t B A 10 (s) =B =3 m/s 2 =A =1 m/s 2 = =15 m/s (m/s) 18 = =54 m 0 6 (s) s=;2!;_6_18=54(m) ==-3 m/s 2 0-18 a= =-3(m/s 2 ) (-) 6 (-) 3 m/s 2 3 B A 2 A B 2 A B 2 A B ;2!; A B 2 a= A B 4 Dv t B A 3 4
www.ebsi.co.kr 15 1 150 10 6 9 15 GPS GPS 3 GPS 3 45 km BC vıç= 60 min 45 km = =45 km/h AB 1 h C D 4 m/s 1 m/s 3 m/s 4 m/s 1 m/s 0~t t~2t 0.5t1.5t A ;1 4; m/s B ;7#; m/s=;1 4; m/s A B A B A B 2 B A 2 A 0.5 m/s s 0 t 2t AB 30 km 30 km 30 =0.5 v AB = 0.5 h =60 km/h 0 2 B 0 2 B A 4 B A 4m 4 6 5
A B A B 2m 4 6 A B 6 B A 2m 6A B 2 m/s 7 A B 0 20 15 m/s s=15_20=300(m) 20 30 10 10 m/s 15 m/s A B B 10 m/s 10~20 m/s 15 m/s 20~30 m/s 25 m/s 10~20 m/s 20~30 m/s 15:25= 3:5 B 20 m/sb L ;8#;L A =;8$;L 2 A B ;8!;L A B A B =;;8;L; 5 m/s =0~20 (m/s) 30 20 10 0 B A L L (m/s) 15 10 5 0 10 20 30 40 (s) 0 20 s=20_15=300(m) 20 40 a=3.2 m/s 80 m/s 80=3.2 t t=25 80 m/s 40 m/s s=40_25=1,000 m 0~10160 m s=;2!;at 160=;2!;_a_10 a=3.2 m/s 6
www.ebsi.co.kr 2 A B 3mg p A 3mg p Aq AA p A q A q B B q 100 m 21.51 0.5 =1 =1.5 =2 A B F=ma A B 2 3kg 12 N F 12 N A B a= = =4 m/s m 3 kg B AB 1 kg_4 m/s 2 =4 N AB A B A BB A AB B 0.1 kg 20 m/s p=mv=0.1 kg_20 m/s=2 kg m/s Dp=mDv =0.1 kg_ 30-(-20)m/s=5 kg m/s 5N s A på=m_4v= 4mv B pı=2m_3v=6mv B A Dp=mDv A B Dv Dpm B A 2B A 2 B A 2 A 4v-(-v)=5vB 3v-(-2v)=5vA B 7
A B A B B A 2 A B 2 I I=FDt F= I Dt A BDt B A 2 A B 2 U=mgh= 2 kg_10 m/s _0.8 m=16 J 16 J 16 J16 J=;2!;mv 0 2 =;2!; _2 kg_v 0 2 vº=4 m/s 0 A(m) 500 N 10 m W=500 N_10 m=5,000 J F 100 m 5,000 J=F_100 m F=50 N F W=;2!;_6 N_1 m+6 N_1 m=9 J B 9J B 9J=;2!;_2 kg_v v=3 m/s ;2!;mv 0 2 +m_10 m/s _0.8 m=;2!;m_(5 m/s) 2 vº =3 m/s t B(2m) 2Ít A B A B 3 0 0 0 F a= A 5m F FÅ=2m_ =;5@;F 5m ;5@;F B Fı=3m_ F =;5#;F 5m A A A B (50-20)N a= =1 m/s A 30 kg 8
ß ß www.ebsi.co.kr FÅ=10 kg_1 m/s =10 N A B B A 2 A 10 NA B T T- 20 N=10 N T=30 N A T A 20 N A T-20 N=10 N T=30 N = 10 N 0~0.4 2 m/s a= =5 m/s 2 0.4 s 60 kg 5 m/s 2 F=60 kg_5 m/s 2 =300 N 2~5AB A B 0 A AB 30 N 0~2 B 2 m/s B 2N N- 10=2 A BN=12 N A BB A T B A B B A mg_4h=;2!;mv 1 2 v ='å 8gh=2'å 2gh h ;2!;mv 2 2 =mgh v ='åß 2gh ;2!; I=m'åß 2gh- -2m'åß 2gh =3m'åß 2gh 3"ç 2m gh 2 2kg m/s 4 m/s 2 4 2N 4 m/s 2~4 s=vºt+;2!;at =4_2+ ;2!;_4_2 =16 m 1 1N 1 N=0.5 kg_a 1 a =2 m/s 1 6 5 3 B B A B A B A B A (N) 2 1 0 2 4 0~3 0~3 4N s 3 4kg m/s 6 (s) 11N 1 N =2 m/s 2 0.5 kg 9
250 N 25 kg 2t=4 4t=8 8m -1 m/s 2 225 N 2t~4t W=225 N_8 m=1,800 J 0~t 50 N 50 N=25 kg 4 m/s _a a=2 m/s 2 m/s = t t=2 (m/s) 4 =0 =0 =250 N =25 kg B DK=;2!;_60_ 13-3 =4,800 J A B4,800 J A ;2!;_50_12 =3,600 (J) B 4,800 J A B 1,200 J A B A B A B 1,500 =30(m/s 2 ) 50 30 (m/s) 13 12 B 0 t 2t 3t 4t (s) 3 A 0 t (s) t 2t 0 250 N 250 N 25 kg A B 100 N W =100 J B 100 J C B A C W =100 N _1 m+50 N_1 m=150 J A DpÅ=50 kg_ 12 m/s=600 kg m/s 1,500 N600=1,500_t A B t=0.4 12 30= 0.4 t A 50 kg 1,500 N 1,500 a= =30(m/s 2 ) 50 12 30= A t B t=;3!0@;=0.4 m_10 m/s _H=m_10 m/s _1 m+ ;2!;_m_(4 m/s) H=1.8 m ;2!;mv B 2 =18m B vı=6 m/s B C 10
www.ebsi.co.kr 2 2AU 8AU 2 T T' a'=5 AU 3 = a 3 a' 3 1 2 T' = T' 1 3 5 3 =5'5 2 AU 8 AU 3 1,000 AU a 3 =1,000 AU 3 =(10AU) 3 10 AU 1AU 10 T 2 =10,000 2 =(100 ) 2 100 T 2 T' = 2 T'= a 3 (2a) 3 2'2 T 2 2'2 3 (AU 3 ) 30,000 10,000 1,000 100 10 1 0 1 10 100 1,000 10,000 2 ( 2 ) 2 =2 AU+8 AU=10 AU =5 AU T 2 a 3 T 2 =ka 3 k= T 2 = T' 2 a 3 a' 3 2 1 2 A B A C ;2!; A B B C T 2 AOB 4 BOC = 100 =100 1 1 2 2 A B AB A B 11
Mm F=G r Mm Mm F=G G =ma r r M a=g r 0 0 10 m/s 6kg 60 N 10 N : 6º: m/s =g 6 kg 60 N 6 kg 10 N =;6!;g c v L 2 (c 2Í _Ív 2 ) cí+ív L 1 cí_ív T = L 1 + L 1 = 2L 1 c+v c-v c(1-v /c ) 2L 2L T = 2 = 2 "Ω( c -v Ω ) c"ω( 1ç- v /c Ω ) 8 0.8c v 12
www.ebsi.co.kr 8 _c t= =10 0.8c 8 1W 1 1J 1 4_10 26 J 1 4_10 fl J 4_10 fl =m_ 3_10 ;9$;_10 kg 4_10 fl W 1 5 5s_ 4_10 fl J/s =2_10 J 4 1 4 1 m M r G Mm G Mm =mg r 2 r 2 g= GM r 2 mg mg=ma a=g 13
C A, B, C O A B C B A C B 1 2 34 1 23 2.7 K 4 A A C B v r H 0 v=hºr0.56c=70 km/s/mpc_r 0.56_3_10fi km/s r= =2.4_10 Mpc 70 km/s/mpc up, down, charm, strange, top, bottom 6 3 2 down 1 up 2 up 14
www.ebsi.co.kr 1 down u(+;3@;e)+u(+;3@;e)+d(- ;3!;e)=+1e 0 d u u up down up down WZ 0 d d u A 2 2 +e B 0 C 3 3 mm Mm G r 2pr v 2pr T= v=æ GM v r 4p T = r GM 15
P Q 2 2v 3 3r 3r T { 2 2 2 }3 P Q 4 r +r =2a a: 3 2 2pr T= v v=æ GM r M r t s t r A=;2!;rs da =;2!;r ds =;2!;rv dt dt 2 ;2!;rv r s Mm F=G (F)(r ) Mm G =ma r 2 GM a= r 2 P P r Mm GM mg=g g= r r 0.05 0.9 A G =;9%;G B G =: 9º:G 0.3 0.9 300 C G =3G 10 h A >h B >h C t' t t'>t t v vt t' v vt'>vt vt r 2 16
www.ebsi.co.kr v v B B B A B t c 10 B A 10 m/s 65 kg 650 N 5kg 50 N A B B A A B 17
100 Mpc 7,000 km/s300 Mpc 21,000 km/s 2.5\10 4 (km/s) 2\10 4 1.5\10 4 10 4 5,000 0 0 100 200 300 (Mpc) 100 Mpc 7,000 km/s 300 Mpc 21,000 km/s 70 km/s/mpc 70 km/s/mpc 1 Mpc 70 km/s A 1 Mpc B70 km/s 0 +1 (u) 2(d)1 0 (u)1(d)2 3 0 W A C B C 18
www.ebsi.co.kr 2 B (-) P Q Q A B Q P A B B 0 B B 0 (-) B (+) A B (+) B A P Q 4 A B A (+) (-) F E= E q q F=qE (+) B A AB AB B (+) A (+) (-) A (-) (-) 19
(+) (-) (+) (-) _ +++ + + + (-) (+) (-) (-) (-) _ (-) (-) (-) (-) N N S N N h =_tanh h 20
www.ebsi.co.kr N +x a N S b N N N S N S S N (-) O O 21
N N S v Q P a b c d a 3 AB AB AB AB B + A (+) B B (-) B A A B B A F (+) (-) B 22
www.ebsi.co.kr (+) B F E= q (-) A (-) B A AB A B A AB B (+) (-) B (+) A A (+) Q(-) A P P A P Q + + A + + + + (+) A (-) (+) A P P B A A (-) B (+) B A B A P ABQ AB P Q (+)(-) PQ A (-) B C (+) A B(-) (+) B C (+) A C A B C B A, B, C C (-) A (-) C (+) A A (-)B C (+) A A B C + +++ + + +++ _ B C + 23
B C(+) B C B C (+) + + A + B + + C + B' B + B =B'+B B B =-B'+B 2B=B +B O A O 0 B B A O B A O A B B A O B A BO B Q Q Q 0 PR SN PQR AB AB AB O 0 O 0 A B AB A B v q r P P P R R P R P q r v 2pr T= v q vq I= = T 2pr 24
www.ebsi.co.kr 0 a Sb N P Q N Q 0 Q R a 2t 3t 0 0 0 t (+) 1~4 2~4 ;2T; 2t 0 ;2T; (+) R a R b t 2t 0 t R b R a B a a, b B h U=Babsinh x h=xt U=Babsinxth=0t=0 DU I cosxt xt=0 h=0 Dt b 0~1 4~6 0~1 25
2 A B 1 2 + _ bc a B A 0 0 C 0 26
www.ebsi.co.kr C (Si) 1 n (As) 5(Ge) 4 (As) p n 4 Ge Ge Ge Ge Ge Ge Ge As Ge Ge 5 Ge Ge Ge Ge Ge (Ge) (As) 4 5 4 1 n p n p n AB AB (+) B p (-) A n p (+)n (-) 27
B C pnp 0 0 90 a, b(-) (+) ab(-) (+) b a a _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ _+ b _+ _+ _+ a b _+ _+ _+ _+ _+ _+ _+ _+ _+ (+) (-) (-) (+) a (-)b (+) a (-)b (+) (-)(+) a (-)b (+) b a 3 1 a, b, c 1 12.75 ev12.09 ev10.2 ev 1 a b, c (n) 1 c b, c 1 12.09 ev+10.2 ev=22.29 ev a 1 12.75 ev 28
www.ebsi.co.kr hg f ed h g f n=1 n=2 n=3 n=4 n=5 c 0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2 (\10 _6 m) a b a, b, c, d 1 2 n=2 n=3-1.51-(-3.40)=1.89(ev) n=2 n=3 1.89 ev n=1n= n=1 n= n=1 n= c a b d b e a A B (+) A A 1 abc a bb c A B A 29
A p p AC A p C n B A, C A, C I I p n p n I I c I e V be p n p p n p p n I b p V be V cb I c 0 90 B A LCD LED LCD LED LCD LCD LED LED LED TV LCD LEDLED LED 30
www.ebsi.co.kr 2 P S >> x x 4~5 P, Q, R Q P Q Q R ;2!;T P Q T 0;4!; T;4@; T;4#; T;4$; T PQR 0 P P A Q 0 Q 4 _T 4 R R A P Q R 1 _T 4 P Q R 3 _T 4 R P A Q 2 _T 4 R 31
S N S (LED) (PD) A B S N S N N S N (LED) 5V or 12V 0V (PD) (PD) (LED) cb a 32
www.ebsi.co.kr 1.0 0.5 (a) (b) (c) 0 350 400 450 500 550 600 650 700 750 (nm) c CCD CCD 3 ;2!; 0 0 2 2L 33
;2!; 2 ;2!; 3 ;3!; 3 A A C ;2!; A C 2 128 cm B D 2 B D ;2!; 349.2 Hz P Q A CA 440 Hz 1 12 12 12 '2?1.06 440 Hz 880 Hz A B 34
www.ebsi.co.kr p n 35
2 xy a a AM FM c A B C X A C A C B X c X Q P P P P Q Q (AM) 36
www.ebsi.co.kr 0 0 R R 0 0 RFID 45 45 1 1 2 2 c 3_10 8 m/s 3 k= = = m f 2_10 9 Hz 20 RFID RFID 90 90 90 90 37
A B CD DVD Xc 3 X A B XX X X X ( c) 38
www.ebsi.co.kr f 0 R P Q PQ Q A A A B B B V V 0 A B A B A B LC ( f 0 ) 1 1 2 V V 0 A B B A A B LC f 0 f 0 LC LC 39
fºl 1 f 0 1 f 0 L L f 0 L 2 a N S N S (+) S N N S (-) a A B A B B A A B A B A B B A A B A B A B h A B S N N S 40
www.ebsi.co.kr P P { } 2 r V V 2 R b R a r n ;n!; 1 n n 2 1 1 2 2 1 2 R V Z Z A Z A- Z ZA 2~3 41
( 235 92U) (H O) ( 235 92U) (D O) ( 238 92U) ( 239 94Pu) (H O) (D O) (Na) a b 228 88 Ra 228 2 89Ac+ 0-1 e 226 88 Ra 2 222 86 Rn + He b a n p n p n p A B 42
www.ebsi.co.kr 3 R R N R 1 S N S R NS R R tº A B B A B R A B R N R 2 S Vº Vº A B Iº 3Iº 3:1 A B2:1 1:2 I R P A :P B =3:4 V 0 0 I 0 0 nv 0 Vº Iº n V 0 0.9P 0 0.1P 0 0.99P 0 0.01P 0 ;1 0; '1å0 1 2 _ I 0 n 43
a p pn n cb 2 1 2+ -+- a bc a b (+) (_) c a b (_) (+) c 235 92U+ 1 0 n 2 144 55Cs+ 90 37Rb+2 1 0 n 90 1 14 17 2 7N+ He 8 O+ H a 2 16 13 2 8O+ ºn 6 C+ He 2 2 2 H+ e 1 1( H) 2( H) 2 ( He) 2 2 2 H+ He 3 2( He) 2 ( H) ( He) 1 2 0 2 1 Hß 1 H+ +1 e 2 1 3 1H+ 1 Hß 2 He 1 2 0 2 1 Hß 1 H+ +1 e 2 1 3 1H+ 1 Hß 2 He 2 3 2 Heß 4 2 He+2 1 1 H ( H) 4 ( He) 1 4 H 2 He+2 e+26 MeV ( H) 236 200 MeV 0.85 MeV 8 22.4 MeV 2.8 MeV X 1 2 X H 2 3 ( 2 He) 3 2 ( 2 He) 4 ( 2 He) 44
www.ebsi.co.kr 4.02820 u 4.02388 u 0.00432 u 5.03015 u 5.01127 u 0.01888 u E E 0.00432 u 0.01888 u E=Dmc 1 u=1.66_10 kg c=3_10 m/s 0.00432_1.66_10 kg=7.171_ 10 kg 0.01888_1.66_10 kg=3.134_ 10 kg E = 7.171_10 kg _ 3_10 m/s =6.454_10 J E = 3.134_10 kg _ 3_10 m/s =2.821_10 J B c A 131 53 I 2 131 54 Xe+ 0-1 e A- b b c ( 10 5B) 5 5 ºn+ 10 4 2 5B 2He+ Li ( He) n p A n R n A - p B + R b R a A P Q Q P Q +P - a 2 2 2e+ 93 237 144 241 95 Am 237 2 93Np+ He 45
2 w F w_2l= F_L F=2w w w 2L 2w w 3w 3w L 2w F_b=w_a F wa b w =2F( F_ l =w_ l ) 2 4 w =4F( F_l=w_ l ) 4 w =;2!;F( F_ l =w_l) 2 w >w >w _ 1:2 2:1 1:1 3w_2r=6w_r A 2w_2r=4wrB w_r=wr A A F A 2r 2r O r O T w 0 T_2L-w_L=0 w T= 2 2L w T r B F B 46
www.ebsi.co.kr 0 0 A 3kg 2kg 50 N 30 N_3 m + 20 N_5 m =190 N m 0F P _4-190=0 F P =47.5 N (+) F P FØ FØ=2.5 N F O O 3 m 4 m 5 m F P 30 N 6 m = A A P 20 N O P F P 3m4m5m S qshg qshg qgh S A h qgh A h 2 2 1 2 1 47
3 F 0 0 + r r F_r-F_ =F_ 2 2 F F 0 -T 1 _0.3 m+t 2 _0.4 m+(-500 N_0.2 m)=0 0 -T 1 -T 2 +500 N+w=0 T 1 =T 2 w=1,500 N F F 0 0 F F 0 F F F F O O O F F F T 1 0.3 m 0.4 m w T 1 T 2 T 1 T 2 F A F B w A F A +F B _w=0 F A F B L F B L A w A w F B L w 0 -w_ +F B _L=0 F B = 4 4 F A =;4#;w L T 2 500ÍN F B B F B L _w\_ 4 +F B \L 48
www.ebsi.co.kr 100 N 0.01 m 0.1_10fi N/m 1.1_10fi N/m =1.0\10 5 N/m 2 =0.1\10 5 N/m 2 0.01 m 2 1.1\10 5 N/m 2 0 0.9 0.9 A A F F = F A =F A A A P qgh+p 0 S P 0 +P 2 P 0 +P A 2 A A AA A A P P 0 + P _ 2 P 0 0 H _ 2 H A 49
2 C A A B A>B>C P 2 P 1 0 B C V 1 V 2 CA A T 1 T 2 T 3 0 2 0 S 1 S 0 S 2 S 0 S 1 S 2 T 2 T 1 50
www.ebsi.co.kr 1 2 0 AC B 3 51
P P P P +P =P A A B A B A =_ A B A B 0æ 0æA B ( ) 0 A B AC2 BD LED LED (+) p (-) np n p n LED (+) p (-) n + 80 kcal/kg 539 kcal/kg _ p n A B LED p (+) n (-) 52
www.ebsi.co.kr I N S N S a z b -z b z z I y x N a b S I I z N S NS 53
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