EVALUACIÓN EVAL UACIÓN SUMATIV SUMATIVA A CIENCIAS CI ENCIAS NATURALES OCTAVO OCTAVO BÁSICO BÁSI CO NOMBRE:__________________ NOMBRE:______ _________________________ __________________________ _____________________ ________ FECHA: _____________ ___________________ ______ 1 A B C D
2 A B C D
3 A B C D
4 A B C D
5 A B C D
6 A B C D
7 A B C D
8 A B C D
9 A B C D
10 A B C D
11 A B C D
12 A B C D
13 A B C D
14 A B C D
15 A B C D
16 A B C D
17 A B C D
I.- Lea atentamente atentamente cada pe!"nta # maca c$n "na c"% &a a&tenat'(a c$ecta en &a TABLA )"e e*t+ a',a. / pt*0 . C'ent12c$ )"e a*'!n3 &$* t4m'n$* de 5ca!a p$*'t'(a6 # 5ca!a ne!at'(a6 a &$* d$* t'p$* de ca!a e&4ct'ca A. Charles François du Fay C. Ben!a"#n Fran$lin
B. John Dalon D. %ales de &ileo
7. La 8"e%a e&4ct'ca ente d$* c"ep$* c$n ca!a e&4ct'ca9 # )"e *e enc"entan dent$ de& m'*m$ camp$ e&4ct'c$: A. 'uede ser de ara((i)n o re'ulsi)n* 'ero no 'uede ser nula. ara((i)n. C. 'uede ser de ara((i)n* de re'ulsi)n o nula. re'ulsi)n
B. iene +ue ser de D. iene +ue ser de
. A& d'*m'n"' &a d'*tanc'a )"e *epaa d$* ca!a* p$*'t'(a*9 ded"c'm$* )"e &a 8"e%a e&4ct'ca e*"&tante ente e&&a*: A. au"enar, sie"'re. B. dis"inuir, sie"'re. C. au"enar, o dis"inuir,* de'endiendo de las "a-niudes aso(iadas. D. 'er"ane(er, i-ual.
;. S' "n c"ep$ p$*ee p $*ee "n n. ?@"4 m4t$d$* de e&ect'%ac'3n e&ect'%ac'3n e)"'een0 )"e a& a& men$* "n c"ep$ c"ep$ e*t4 e&4ct'camente ca!ad$ pe('amente . Cona(o.
. ndu((i)n.
. Froa"ieno
A. olo C. olo y
B. olo D. * y
/. $t$ne* # e&ect$ne*9 p$*een ca!a e&4ct'ca: A. roones (ar-a neura y ele(rones 'osii/a. 'roones 'osii/a. C. le(rones (ar-a ne-ai/a y 'roones (ar-a neura. ne-ai/a y ele(rones 'osii/a.
B. le(rones (ar-a ne-ai/a y D. roones (ar-a
. L$* _____c$nd"cen ,'en &a e&ect'c'dad. __ ____ e* e& meD$______9 e* ,aat$ *e "*a en &a ma#$1a de &$* _______. A. o &eales* l Core* aislanes* ala"res. Condu(ores* Cales C. &eales* l ro* Condu(ores* Cales aislanes* Ala"res.
B. &eales* l Core* D. o "eales* a 'laa*
. ?@"4 e* &a e*'*tenc'a R0 A. 'osi(i)n +ue 'resena un "aerial al 'aso de la (orriene 'asa 'or un (ondu(or C. o'orar la "ayor (anidad de (alor de un (ir(uio 'asa en un (ondu(or
B. Canidad de (ar-a +ue D. &edida de ener-#a +ue
. La 'nten*'dad I0 e*: A. l re(orrido del /ola!e en un (ondu(or B. oen(ial enre el 'olo 'osii/o y ne-ai/o C. Canidad de (ar-a el(ri(a +ue 'asa 'or un (ondu(or en un deer"inado ie"'o. D. in-una de las aneriores
. ?@"4 e* e& ($&taDe A. &edida de la ener-#a +ue 'asa en un (ondu(or B. s la uera +ue se e!er(e sore las (ar-as 'ara (olo(arlas en "o/i"ieno C. o'orar la "ayor (anidad de (alor de un (ir(uio D. in-una de las aneriores
7. Meta& c$nd"ct$ de e&ect'c'dad9 c$n*'dead$ e& meD$ # )"e adem+* e* de ,aD$ c$*t$. A. laa C. Cau(ho
B. Core D. ro
. ?c"+&e* de &$* *'!"'ente $pead$e* e&4ct'c$* *e nece*'tan paa 8$ma "n c'c"'t$ e&4ct'c$ A. :n -enerador* un re(e'or* un inerru'or y la li(uadora l,"'ara y (orriene el(ri(a C. :n -enerador* un (ondu(or* un re(e'or y un inerru'or aneriores
B. Cale* li(uadora* D. in-una de las
;. ?C3m$ *e m'de &a 'nten*'dad de c$'ente I0 # c$n )"4 apaat$ *e m'de A. e "ide en oh"ios (on el )h"ero /ol#"ero C. e "ide ;a 'or se-undo (on el "ul#"ero a"'er#"ero.
B. e "ide en (orriene (on el D. e "ide en a"'erios (on el
=. Re*pect$ de& ca&$ # &a tempeat"a9 *e p"ede a2ma )"e: . la e"'eraura se rela(iona (on la /elo(idad de las 'ar#(ulas. . el (alor es una "edida de la ener-#a 'ro"edio de las 'ar#(ulas . "ienras "ayor sea la /elo(idad de las 'ar#(ulas* "ayor es su e"'eraura A. olo aneriores
B. olo
C. olo y
D. %odas las
>. La e*ca&a a,*$&"ta de tempeat"a* t'ene c$m$ >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (. >>>i la (ar-a el(ri(a de un (uer'o au"ena* la inensidad de la uera el(ri(a +ue e!er(e a"in au"ena. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> d. >>> :n (uer'o (on (ar-a ne-ai/a ha -anado (ar-as ne-ai/as. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> e. >>>:n (uer'o (ar-ado 'osii/a"ene ha -anado (ar-as 'osii/as. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
II.- C$mp&eta &a* *'!"'ente* 8a*e*. p"nt$*0. a. Cuando la (anidad de (ar-as >>>>>>>>>>>>>>>> es i-ual a la (anidad de (ar-as ne-ai/as* el (uer'o se en(uenra en esado >>>>>>>>>>>>>>>>>. . :n (uer'o ad+uiere (ar-as 'or >>>>>>>>>>>>>* >>>>>>>>>>>>>>>>> o 'or >>>>>>>>>>>>>> . (. i un (uer'o -ana (ar-as ne-ai/as* ad+uiere (ar-a de si-no >>>>>>>>>>>>>>>>>>>* y si las 'ierde* ad+uiere (ar-a de si-no >>>>>>>>>>>>>>>>>>. d. as (ar-as de i-ual si-no se >>>>>>>>>>>>>>>>>>>>>> y las de disino si-no se >>>>>>>>>>>>>>>>>.
III.- Ind'ca e& t'p$ de p$pa!ac'3n de& ca&$ en cada 'ma!en. p"nt$*0
Thank you for interesting in our services. We are a non-profit group that run this website to share documents. We need your help to maintenance this website.