BỘ ĐỀ KIỂM TRA VẬT LÍ 10 HAY

N{fr ae

tni

zlq

mnnn rRA 4s' HKI zar0-20n- vA'r

ly r0 cB

I

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s6 thft

VIfl phdng thi

blfthi

Ciiiu 1: Chon phiit bi6u sui:

Vec-to'vin t6c cua chuy6n d6ng tron dAu
A. luOn c6 phuo-ng ti6p tuyt5n v6'i duo'ng trdn qu!
B. c6 dQ l6'n l
dao.

C. co clQ ldn khOng d6i, con hu6'ng lu6n thay ct6i.
D. e6 hu'6'ng khdng tl6i theo thd'i gian
Ciiu 2: MOt vAt ro'itu do. L,6y e:l0 m/s2. Trong 2 gidy dAu ti6n, n6 didugc quSng rlu'o'ng bbng

A. l5nr
(liiu 3: Mfrt v0t chuytin

B.

lOm .

C.20m.

D.5rn

ddng trdn dOu mdi vdng di tr6t Z giay. TAn s6 cua vdt ld
A. khOng xric cfinh. B. 4 hz.
D. 0,5 Hz
C.2 Hz
Cfiu 4: MOt chSt diiSm M chuy6rr d6ng trdn ddu trOn dud'ng trdn t6m O v6'i t6c d0 g6c ld 2 radls.
'['rong 5 s b6n kinh OM qu6t duglc mQt g6c bing
lAn rad
A. 5 rrid
ti.2A'n rad.
C. I0 rad
.
{ Srn 5: MQt vAt chuy6rr dQng thing nhanir ci6n dAu vdi vfln tOc ban dau barrg 0 ., cu' Ix6i gia), vAn toc
cira v# lai tlng thOm du'oc Zmls. VAn tOc crta vat luc t - 5 s la
D. 15 m/s
A. 20 m/s.
B. l0 m/s
C. 13 m/s
Cflu 6: MOt vQt chuy6n dOng trdn d6u m6i gi6y v4t cli cluo-c 4 vdrrg. Chu kj,'cua chuy6n dQng crla v6t

ln

A.+s

8.0,25s

C.2s.

D.

ls

Ciiu 7: Phu'cto hlng km" t do blng giir; . Ctrdt Oidm d6 xua't ph6t til clidm nio vd chuydn dQng v(li vAn toc
iriurg bao nhie u 'i

A. TU mOt diim ciich O li 40km, vdi vdn tdc 1Skm/h.
It. Tir diCm O, vrli vQn tdc 40km/h.
C. TU didm O, vr'li v6,n tdc l5km/h.
D. Tir mQt didm cfch O lI l5km, vdi v{n t6'c 40km/h.
Cflu 8: 'fil tdng I 0 cria mQt tod nhd, thi cing hic hai hon drl c6 kh6i lu'o.ng I kg vd 2 kg. Bo qua s[r'c
can lA. lrdn dd 2 kgch4m d6t trir6'c
B. hon d6 I kg cham cl6t tru6'c
(1. kh6ng tne triCt hon c15 ndo ch4m dAt tru6'c . D. hai hdn tl6 cham d6t cirng lric
Ciiu 9: MQt virt chuyi5n dQng c6 phuong trinh chuyAn ifQng llr x = l0 + 21 , trong d6 x tinh bing m, t
tinh bdng s. 'I'irrlr chAt chuy6n ddng cua v4t ld
B. thing d6u
A. thlng nhanh dAn d€u
D. thing bitin dOi .

C. thlng clrpm dAn d0u
CAU 10: Chon cAu drtng
T'r'
chrryfjrr dong thing chfrm

Cfr'n

dduth\
Trang 1,4 - t\{A

cte

thi 209


*",

A. Gia toc lh dai lugng khong ddi.
B. VAn tdc trlc thiri tang theo hlm sd bac hai cira thdi gian .
C. V6c to gia t6c cDng chidu v6i v6c to virn tdcD. Qulng duong di du-o.c ld hlm'sd bac nhdt cira thdi gian .

CAu 1l: M6t 6tO di til A tldn B mdt 6 giir, trong2 gid ddu 6tO di vdi tdc d0 60 km/h, tron g l git) sau
6rd di v<'ri tdc dO 75 km/h. t6c d0 trung binh cfia 6t0 tr6n doan ihldng AB t$t
D. 60 km/h.
C. 67,5 km/h.
B" 7 5 krn/h.
A.70 km/h
hinh dddi. Viin tdc
*thiri

nhd
gian ctia vat chuydn ilQng thang d6u
Cfiu l2: Cho dd thi toa d0
cfra chuydn dQng Ih

x(m)
ZA
5

0

A. 7,5

r"n/s

.

B. l0 m/s

C.20

m/s

2

D.

t(s)

12,5 m/s

Cflu t3: Mqt vat chuydn dQng thlng ch{m ddn ddu, trong 2.s v{n tdc giirn til l1rnls xudng cbn
ril/s. Gia t6c cria vet [e
D. 4,5 mlsz
C . - 4r5 mls}
1,5 rr,ls},,,
ftE.
A. 2 m/s2,
Clfiu 14: Trong dd thi vQn toc cira chuydn dOng thlng hjnh vd b0n, doan nlto ung v6i
chuy€ln clOng thlng ddu ?
B. Doan DE
A. floan Ots
C" Ooan CD

D. Doatr tsC

L'f,u 15: Trong c6c phrftIng trinh sau ddy, phtlOng trinh

diu'l

A.x=t2-3t.

3

ndLo mO

ti chuydn dQng thfrng nhanh ddn

C.x=41.

B.x=5t+4.

D.x= -3t2-t.

VAf lV l0 : Til cirng mQt cl6 cao(trong

kh6ng khi), d6ng thdi
td' kia vo trdn vd n6n
phing
cdn
tha nlie nhdng iaiio
to di6u gi?
chf'ng
clidt thi ro'gi6y bi vo trdn s€ cham ddt tru6'c. Theo em, thi nghiem ndy-nhdm
A. Trong khdng khi, vflt nhe bao gid'cfrng roi ch4m hon vdt n[ng.
B. 'l-rong kh6ng khi, v4t roi nhanh ho'n kh6ng ph6i bao gio'cfing ld vdt nlng hu-n.
C. Trong kh6ng khi, v4t nflng bao gid' cfrng ro"i nhanh ho-n,vflt nhg'
D. Mgi v4t dD nflng hay nhg cl6u roitrong kh6ng khf nhu nhau.

Cflu 16: 1'hi nghi6m 3 trapg 24

shch

gi6y ctrng lopi cirng kich thu6'c nhung mOt td dC

CAu 17: Chuydn dQng th.ing lhTl dAn dAu
A. gia t6c kh6ng O-Oiifreo thoi gian
C. lio t5c giam?Au theo tho'i gian

co

^ t5c gi6m dAu theo tho-i gian
B. vpn
D. gia t5c tlng d6u theo thdi gian
,.

Cflu l8: M6t 0t6 rlang chuydn clQng v<1i vdn tdc 36km/h thi h6m phanh vI chuydn
ddu vr,ti gia tdc - 2mls2. Sau khi h6m phanh bao i6u thi xe dtrng hln'? .
D'25s
C. l8s
R.5s.
A. lOs
Cfiu 19: Phurlng trinh chuydn clQng cria mQt ctrdt didm doc theo trqc Ox c6 dang :
x = - 50 + 20 t( x do blng km, t rlo bXng gid)
'l'rang

clQng

214

ch{m ddn

- MA OA tni

}AL)


'.

ld

10km'

Quang drrdng rli dugc ctia chdt clidm sau 2h chuydndQng

A.40km.

B.90km.

C' -

:, ri
r
^r
D' l0km'

litZmls2.
Cffu 20: MQt vflt chuy6n dQngthEng nhanh dAn d6u v6'i vQn trSc ban ddu ld3 m/s vd giatdc
VAn tOc cira vAt tfic t: 5 s lh
D' 15 mis
C. l0 m/s
B. I 3 m/s
A. 20 rnis.
Cftu 21: Tr6ng cdc phtfclng trinh sau tl6y, phrrOng trinh nio mO ti chuy0$dQng thSng chdm ddn

dcu.'

C.x-5t+4. , D-x= -4t.
Cffu 22: N4gt v4t chgy$n dQng co c$ng thirc vdn tOc Ii v - l0 + 2t,trong do v t[nh bdng m/s., t tinh
bdng sl Cia t6c cita vflt llr'
B. 12 mlsz

A. 2 tr/s2
A.K= -t2+3t.

I].x=

-3t2-t.

t

D. kh6ng du dU'kien d0 xdc dinh'
C. l0 rn/s2
gian cua chu5,$p
Cfiur 23: Mc2t vt1t chuyen d6ng thdng dAu xu6t ph6t rtl toa dQ x0 thi dO thi toa dQ-thd'i
d6rrg nay ld mQt duo'ng thang

A. c[t truc tung t4i tung d0 xt,
C. di qLIa g6c top dQ

B. c[t trpc hoanh tpi x
D. cft truc tung tai x - v
61

thi vfln t6c -tht)i gian cria vat chuydn dQng thlng nhu hinh dtldi. VAn tdc vfln tOc
han cldu (irng voj to = 0) cira chuydn d0ng lh
v(mis)
B. 20 m/s
A.J,5mls.
(1. 10 m/s
D. 35 m/s

Cflu 24t Cho

c1d

35
ZA

0

2

Cf,u 25: Chuy6n dQng tron ddu
A. c6 dQ l6'n v6n t6c tlng ddiu theo thoi gian
B. kh6ng c6 gia t6c, vi c6 d016'n vQn t6c kh6ng tl6i theo thoi gian
Cl. co dO l6'n vpn t5c gi6m ddu theo thd'i gian
D. c6 vecto gia t5c lu6n hu6'ng vdo tAm qu! dao trdn.
Cfru 26: Ro'i tu do ld lo4i chuy€n clQng
,t. thing chpm dAn

C. ttr8ng

Aeu

il6u

(s)

B. kh6ng x6c dinh'
O. ttring nhanh dAn deu

27:'l'rur)ng hA. Hai hirn bi hic va cham v(Ji nhau.
It. Xc chtl khr{ch clang chay trong bdn.
C" Xc dc) chzry til Cdn GiuQc din Vfrng Tiru.
D. Tr;iiDt't chuydn dQng t\I quay quanh truc cria n6.

Cfr.u

Clf,u 28: Don vi c[ra giat6c

li

D. m/s2
C- m
B. m/s
A. kg.
Cffu 292 Mqt xe do clro' kh6ch dang ch?y' thdrtg dAu tren drrd'ng ph6. So vo'i ngu'd'i hi xe thi vat
'
sau day chuy6n d0ng?
B. hlrn g ghe thu' ba tr6n xe do.
A. c6y' cQt dien tt€n du'o'ng PhO.
D. hlrng ghe thu'ndm trOn xe do.

C. satr xe
goc cua chuy0n d6ng tron d6u
A. l{1, thay c1,3i theo thd'i gian

Clfiu 30: J-Oc

niro

c10

B. t[ng theo tho'i gian
tr). giam theo tho'i gian.

Trang

314

- MA d€ thi 20q


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DE rHt HK I (2oro _20111 Ll
tuoNr vAr
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rHiii'dnx oo F[oT.-'

-

CCu 1. Dlnh luQt vgn vflt h5p
ph-5t bi6u dlnh tuft

:

lf

din:

vi6t cong tfo-c c0a dlnh rult, n6i

16

i nghia vi don v! c0a t&ng dqi tugng

C6u 2. - Th6 nio li hai lr,rc cin blng?
-- vb hai tr,rc cin
- Trong va chgm giri'a b6ng vi sin nha thi

uing.

vi

-

lpc cria sin tic dgng vio bong c6 phii

l$c c0a bong tic dung xu6ng sin
li hai lpc cin blng kh6ng? Tei

sao?
Cilu 3. Dinh nghia chuy6n dQng rron diru? NGu dtc rli6m vi c6ng thrtc cria gia tiic
hudmg tflm?.
cdu 4 -Nau dlnh nghia momen ryc ,vi& bi6u thrbc tinh momen lrc
-cdnh toy itbn cfia lyc ld gi ? Khi ndo thi lyc tdc dyngido
'-- vQt cd

'---o
qaay
cO
ainn
khilng
tdm
vQlquay
_!Ug
.a. Thd

?

i

CduS

nio

li

chuydn dQng th8ng nhanh ddn ddu, rhfrng chflm ddn ddu?
b. Neu tinh chdt chuydn dQng cfia mSt v0t dtrgc cho bdi cdcphuong trinh
sau:

ri =5+l0r*S,5r: (x : ffi,t:^s)
x?= -l0r -i (x: m.t: s\

C€u 6

MOt vft chuydn.IOng ddsc cho bdi dd thi nhtf hinh v6.

a. Neu tinh chdt chuydn dQng vi tfnh vfn tdc cria vft?
b. viet ptrddng trinh chuydn dOng *ila vfr?

pnat Uicu diAu kipncan Uing cria
vft c6 m4t chdn

d6?

vft

c6 tryc quay cO ainn vd didu kiQn
--'-- c6n beng cria

Ceu

tU.

.

!- MOt v$t go tctrOi tuqng 4kg bet ddu truqt tr6n sdn nhi du6i t6c dune cta m6t
r{,r.gqe !h.g 20N. Ue 16 ria s6t t*"t eitr r4r ra .a" fa O,ii, ia], fir;i"'

a. Tinh d0 lon lgc ma s6t trlc dpng vio
b. Tinh gia t5c eta vft?

v4t?

- -,

cdu 70. M0tp-to c6 khoi lugng 800 kg dang chuyCn d0ng th6rrg nhanh den dAu voi

gia tdc 2 m/s2. Luc Fdo do
$qns- co eeira c6 d0 l&n 2000 N thi luc ma sft giira b6nh
xe vi m?t
dudrng ln bao nhibu?


Dt rry Hpc

fif;U1f#of^1$ro-2or

rxorbuu,aiffi^'e
CeuloQngltrqne*"i
lc^sdri",i|ld,.I

H qud

:i

,'

A;i6

b6o

totu tlOng l'png .vi6t ui6u ururc
dinh

r

rw

'

uao toan

tinh einp nrriet ?ph6t uidu vi vi6t
ui6u thth c,a dtu h hff

I

d.ns rtryng cho

**1n,*I,;;
--rrvr.ye
ffiiffP
rdffitffiUilti*#*im"'*donsnrng.
;d;;l;""Tfi,[,1*,,siin t *,
v6i
ri"r,
t***!'ffit.Y*;nr6;
c.o-r

chsy

v6n tdc 40 km/h.

:!;ly$,tfr f $,,HH1.[#*,=S:"]+1g,rru:r,ffiu:gru,Hmd
-- --rv'
tr

Wn t6c v
dgngluqng crla h0.?
b/Tinh v6n t{c,cta
t*ri na cham.
rc

gl+

u*

*,

?

gun* Irrc hsc, ndu r0 quv
,6c ddu cua cdc rrai

r,srg tuns
"** "' '"#H
nhlet r,mg r00 I r*rr no ra
thuc r,ien
ffi#
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l",!{f,.[t-uie.,

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c6 od aey*rt

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cgi_Bn cdc d4i luong

#;f;?Frd#lt'tr*fd1ffi ffii

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bidu

rEt nuoc

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i

tr*c?

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ry tr,.,y tioh

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qua mnrr chuydn

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a' rtnh

aal'&.Ji

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b. nm vi

tr{ pne *?i*, crla hdp bi
"ii"
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Th&i gian: 45
Ntun hqc

,

Phrrirt

2011-2012

cfiu 1: ( 1 d)
-'-Ph6t bi6u nguycn l)t th11 ntrdt cria nhi€t'tlqng

;il#db;

I

s
luc hqc? N€u c6c quy

crf moJ *qt ry ffi :flf-ta thuc hign
nhipt
tA,,g klti;"y&t ra m6i tnroxg xung quanh moJ

Vflq dung, Tin4 dQ bien thicn n$i ndng

m.t c6ng 50J de
luqng 30

A^"i

(

J.

1,5

"[;

rfii;id

d)

cria vst co khoi lugng m dang chuy€n
a/ Dinh nghia vd vifu biau thrlc dong nflng
dQng vfntiSc v.
vAt
dQng n[ng lJ.W 510mis2'Tim vQn ttic cria
b71146t vgt c6 11.qng lugmg 1N c6
Cfiu3 ( 1,5 it)
J plrrf, ogl""t e nangtt)t gtruhn€ cria mQ!
-. r- +i-- t-:^ ***,,ki v6t
ui*
$6''F1"
b/MOt i0 xo c6 d0 ..1',g K=200O{fii,;Ot da" ia
? Thc neng niy c6
nhi6u
bao
ba"g
he
cril
at,
til?

td xo bi n6n z.*"trri
"e"g
0C
php thu$c vlo kh6i lusng ituJfl kh6ne ? . . ^
60 27
nhi€t
atrrtvn
2
su6t
6p
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Cfiu 4 (
5 atn
d6 ep su6tkht trong binh
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fru,,Iie.t db khi sau khi $*s "6.1q ( ) . ^ e diau kiOn chufrn ( Ooc ; 1 atn )
uat
b/ Ttuh th6 tich c,a binh. Bi6t 1

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t

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ttring &?nS
Cfiu d ( 1,5 d)Tir dg cgo 5m so voi m4t d[t, n6m
van ti5c 20mrs.

t[*i'.ti"f, "d;;6;

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;affii

uo

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mqt v6f v6i
lel:*
*f,' tho"s klri' lAv g :

eO cao tom ntrff mn vtr'.t&tdugc?
chiau dai & z9o9:
cflu 7 (1,5 d) M6J ttraflh d6ng va mol ttranh ntr6m c6 cung
thanh ch€nh nhau 1'50mm
t,rlg nhi,., AO ctia frai tfr-,f, {9ry3tt* thi chiAu. dai hai
Jal ttiu ddng viu nhom mn tuqt
Tinh chi6u dii cria hni thanh e

ffi

2g'bid;G-fr;

[-rz.

io"rr vi 24. lo*t<'.


sd crAo DUC vAEAo rAo

DE

LongAn

ni

rcnyr rRA ryac Ki rr NAM HQC20L1,,vronr: vdT Ltl6p lb

&

Thdi gian ldm bdi : 45 phtit

-wg

chfnh thr?c

2012

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.f
'a€

Cf,u

I (1,5d): Ph6t bi6u vi

,,

chdmg minh dinh lu0t Hric?

Cfru 2 (l,jd): Vi61
thyc tfnhlcOng co hsc, s6u rd t6n crla c6c dai lugng
9O1g
dugc ggi li o6ngphrit dQng hay cdng cin l*ri nio?

?h6t bi6u dinh lu4t.S 6c
94"_l $,Id):
tqa d0 dO thi kh6ng dugc vE ndt li6n?

-lo.

tong c6ng thtlc. C6ng cria lgc

VE duong tlang tfch trong hQ trrrc tqa d0 O, T). T4r sao & gen g5c

4
9?" .(1,5.d):,M91 vft c6 ttr6i tuqng. z}ls danechuytin ttQng voi v6n tdc 10 m/s thi tang ti5c chuy6n dQng
th6ng nhanh aAn 06u vd sau khi t6ngldc di dugc iOm tfri vflt dat vfln t6c 15 m/s. Tinh :

a. dQng n5ng cfia vflt tpi ngay thli tti6m tnng tdc vd t4i tfrU qi6m vflt rti duo. c 10m sau khi tang
b. d0 l6n cta hgp lgc t6c dgng l€n vft 0 qu6ng dudmg tiing ttic rOm tr6n

t5c

5 (1r5rl): T,i
d6t, mOt vOj c6 ttr6i tuqng
ryFt
-Ciuqua srlc cdn cttakh6ng
86
khtvdlAy g: 10ms-2.

m=

\

200gdugc ndm l6n theo phuong theng drmg v6i vgn ti5c 30m/s.

4t *

tt

2. x6c ttlnh rtQ cao crrc Aai fia i6t dpt doq..
vilrf nio vft epng nlng b[ng *E
vfn t5c cria vat tai vi rf tt6.
"'o
"x,e{di;dinh
a.Taivitrlniov6tc6ttQngn[ngbangbatAntfr6n6ng?X6crtinhvOnt5ccriavattaivitrf

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Cffu 6 (1,5d:cho.10g
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av y61177nhi9t dO l0oc, ,g,Iti ta ttun n6ng ttdng 6p khtSi khi diSn t0 lit.
l. fi*r ttrti ti,chti,%i,q
ttrtii tt i truO" ttri tlun n6ng; - \
n
z-ri^hnhietdOkhSikhisaukhictunn6ngl. \
lnU= ll,tf (
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3. Tpi

cia

7

(ltl):

MQt thanh

^l # *#r uaoe *-J,

oA doqs ch6t c6 khoi lusng I kg. MQt aar.o cria thanh r\e" le,

ben 16 (b6 qua ma s6t cria ben lA), cdn dAu A du-ot tiro uio t"Ong.bang*Oirqi d6y AB. Thanh duo. c gil c6n
rJ

J
bdng ndm ngang ve
hgp vcri thanh mQt g6c a =300 . Ldy
10 m/s2.Tinh llrc clng d6y vi phan lgc

$e1tre9

cria tuong t,5c dgng l6n thanh.

r{r qA'€ (/v)

g:


l^x

I

S# GD-ST Long An
TR{IONG TIft'T Chm Giur$c.

7p

flE KlEilrSRA TAP TRUNG
NAM HQCI2012-2813
MON: Yg,T Lrf LoP to -tsAN

DE CHII{TI TT{IIC

s.'

Y

,/

c0uAu

"Thdi gian ldm b:dti 45 phrit, kh6ng kA thdi gian giao dA

Mfr d0:361

.A
rq*j

S'Yq

D6nh df;u X

S0 Phdch

'
u

$/3'i'0,

*.

fi1,0

m,

Th*Tu
rifi.

6*

f "+'-teq

ig

fr

Cffu 1: MQt vflt ttrOi tuqng 1,0 kg c6 th6 ning Z,0l d6i vdi
''

SO

mit Aiit.l-dy g:9,8

d o,zo4 m.

Xe,B

m/s2.

Khi d6, vflt

m.

Cda 2z MQt vfln ttQng vi6n c6 t45 gi}'y. DQng ntuig cria vfln ttQng vi6n d6 ld:

'

>(

g 560J.

87sJ.

thli

gian

NirsJ.

Wt4oJ.
Ciu 3: Ctri6c xe chpy t6n dudng ngang vdi vfln tdc 20mls va chAm m€m vio mQt chii5c xe k*r6c

dang drmg y6n vd c6 crlng tla:

)K.vr: Yz:20mls

tffu, :20mls )yz:10m/s

fftl:

Yz= 10m/s
CAu 4: MOt vOt duo. c n6m l6n 0 dQ caolm so voi mEt d6t v6i v0n t6c dlu 2 m/s. gi6t kh6i lugng
cria vSt baog 0,5 kg &6y e:.10m/s2). Co nlng cria vflt so vdi m{t d6t barg;

-@6I.
Yot
rAt teng g6p b5n, ttrt

{rt
Khi vfln
Cao

ti5c cria --OJ
etQng luqng cria vflt tdng g6p hai
dQng ndng cria vft ting g6p mudi

St

A.

$

s6u.

CAu 6: Don v! cria dQng luqng ld:
-Sdkg.m/s
pfNm/s.

Dfl{:

mgh.

Xsoo

w.

P(N/s'

dudi t6c dpng cria lgc

F kh6ng d6i.

E?:Ft.

Cflu 8: COng thtic tfnh c6ng cria mQt lgc

*t A_ F.s.cosc[.

i

BP:Fv.

'

ntrng cria vflt t6ng g6p b6n.
O. tfr6 nlng cria v$t ffing g6p hai.
elQng

V,N.m.

Ciu 7z MQt vfit chuyi5n,.ilQng voi vfln t6c
lgc F ld:

{P:Fvt.

B.

ilst.

-?

COng sufu

cta

>{P:Fv,.

li:

4A:F.s.
.f{7iL=/2.mv2.
C0u 9: MQt gdu nudc tkhoalg thdi gian I phrit 40 giily GliV g: l0 m/sz). COng su6t trung binh cira lUc k6o ld:

{.sw.

"Chfn phEn mUdi c0a nEn

( sow.

ting thinh c6ng ti

,

srJ

tt/ tin

vi

p.6w.

dem hdt ngh! lt/c ra thr"fc*riQn"

Trang 5/9 - Me

AA

tii ioi


Cf,u 10: Tlong c6c cdu sag ddy cdu nlo
itQng co.ng
chuy6n dQnE thirig

#chuy6n

i(

et6y.
dAu.

li

sai? D.OnF ndng cria vflt kh6ng eOi Wri
ffchuy6n ctQng trdn d6u.

vflt

i

lD+chuy6n dQ"g vdi gia t6ckh6ng d6i.

Cflu Ll: DQng n[ng cria mQt vat ffing khi
:
Dfvfn t6c cria v$ty; const.
*"0n tOc cta rr6t gia*.
.{4 c6c luc t6c dUng 16n rr6t sinh c6ng dUong. [. c6c ltrc t6c dpngl€n vft kh6ng sinh cOng.
C0u 12: Khi vflt chiu t6c dpng cria lgc din trOi 6O qua'ma s6t) thi co ndng cria vflt duu. c xdc ttinh
theo c6ng

t

thrlc:

w*L*u'+

I

k.LJ

E

Si lr ={, *r2!*sr.
Cffu 13: Khi mQt t€n lta

chuySn dQng'thi ci vfln t6c vd t*rOi tuqng cta n6 d6u thay AOi. ffri
lugng giarn mQt nta, vfln tiSc t[ng g6q hai thi ctlng ndng cria tOnltta:
D. t[ng g6p 2 mn.
C; ttuig g6p Gn.
B. giim Z
a. ftrOng

ttr5i

tAn.

AOi.

Cf,u 14: Qua eAu e mtOi lugng m1 chuySn elQng vdi v$n tOc i, va ch4m vlo qui cAu B
Ta c6:
m2 d(mg y€n. Sau va chgm, ci hai qui ciu c6 cirng vfn t6c
B. mri, = ffiziz
A. ffitVt = -ffizVz

t<*r6i

tuqng

l.

C, mri, = (mr + mz)i,

.

D.

ffirir= + (m, + mr)i,
/,

C0u 15: MQt v$t c6 khdi lugng 2 kg ru tU do xuting d5t trong khoang thdi gian 0,5s. D0 bi6n
thi6n D. 5,0 kg.m/s.
4 A. 9r8 kg.m/s.
C.4,9 kg.m/s.
B. 10 kg.rn7s.
Cf;u 15: Chgn c*u.9,zr-dr6-nfurg c*a hrroiTg tupiig lirp uo Ui6u fmc=D. Atz: mg(21 - zz).
B. Wt:mg(4-z). C. Wr:mgh.
A. Wt:mga.
Cfiu 17: Chgn cdu,sai:

}(co* thrlctinh th6 nrng dan hdi ry

uao eQ'.,ing cla vflt dnn hdi.
phu
thuqc vdo chi€u bi6n dang.
m6 n[ng'dan trdi tCOng thric tinh ttriS nang Aan nOi kN'.
C0u 18: MOt vOt nh6 khOi tuqng m l00g giin vdo dAu m6t ld xo Aan nOiqO dQ cung k 200
N/m(ktr5i lugng l$6ng ril*ng k6), diu kia cria tO xo dugc gan c5 dinh. He duqt\d{Lr0n mQt mat
phdng ngang ktr6ng mi s6t K6o vflt gi6n ra 5cm so vdi vitri ban ddu r6i thd nhe nhdng. Co ndng
cria h0 vat tai vi tri d6 li:

fl)n|nrng

Aan ndi phg thuQc

K
B.

:

:

r

J.

D. 50.10-2 J.
c. 200.10-2 J.
B. 100.10-2 J.
Ciu 19: Va chpm nio sau tHy l| va cham m6m?
$" Vi€n d4n xuy€n qd6 mQt tim bia fipn ctuong bay cria n6.
E Vi6n ct4n S Qua b6ng dang bay tlfp vdo tudrng vd niy ra.
X Qua b6ng tennis etflp rui5ng sdn thi d6u.
,
fa +tg vi cria itan ln 50g. Lric tho6t kh6i ndng stng, dAn c6 vfln t6c
C0u 20: fh6i toq *
800m/s. Van tOc giflt liri cria sfng td:
f). 6mls
C. lZmls
B.7mls

A. l0m/s
Cf,u 2L:NQi dung nio sau ttdy khdng phf,i ln tinh ch6t cria'ch6t khi ?
{Chiitkhi e6 tinh dE n6n.

A.

25. 10'2

rG

"Ch[n phEn rnLrdi cfra nEn t*ng thanh c6ng lir

sf tr/ tin va dem hdt.nghi l{c ra tht/c hiQn"
Trang

619

- MA

dC

thi 361


c6 ttrtii tuqmg riOng nh6 hon so vdi chdr t6ng ,
,
c6 kh6i luqng ri6ng l6n hon so v6i ctr6t tOng
fir, khi ludn chuy6n A6ng h6n lopn kh6ng netog .
Y!C!:q!e"
Ciu22: N6n khi dnng nhiQt tir the fich l2ltt tttin 8 tit tt i tu tTriiy ap sudt tAng mQt lugng b6,g

48kpu . Ap su6t ban itlu cria.khf ld :

fl^"lalkhi

gc!ilkhi

ciu 23:
W.PrU =

{'44

.

HQ

thrlc ndo sau cldy phri hqp vdi qu6 trinir oang

nilQt q'

PzVz

= PzT,

DD
g.a=2

'V,

V,

DD

xt=t
yams $ Aqq trong binh .N6u thc uctr cta khi tE ,e g6p 3 ltu , cdn nhiQt ttQ,giim tri
i0,sudt
9Z:?!,99
nta.thi 6p
cua lugng khf

mQt

ndy s€
g6p d6i.

,

:

. EGtrong d6i. t(ta"e e6p a Hn.
V.ta"g
cflu 25: MOt kh6i khf dpg.trong binh kfn e nhiet dO 670c c6 6p su6t l,i it".Ap

)egiam dt 616n

bao nhieu ktri ha nhiet

A.0,68affn

ciiu 26:M0t xi-lanh

do

d6n27oB.4,Zatm.

q6 th6 fich

_^#.lQo atm !

2 lit.,chua khi o

)(,81

cfia}TzEuong bi6u di6n nair

C.l,9Z atm

arn.

suSt

khi rong binh

tl,S ut n

nic cd 6p su& ram . Nguoi ta nung n6ng klri ctiSn

e0,45

atm

sau d6y khOng phni ctia aeng qua

g4,22

atm

finh

C
;

vit

ftFg a*g.l6n cao vdi vfn t6c 9mls ,cho g=l0m/s2( b6 qua lrrc
l&f ).D0 cao cria v0t k*ri th6 nang bang nua d6ng ndng ld :
A.1,45m
8.1,35m
c.I,25m' D.0,g0m
C.Au

?s]YQt


can cua k*rong

cla29z cdc ttlnh luflt ch6t khi chi ctung khi ch6t khi khio s6t ld:
tro' X tt i don nguycn tii- V.khi litutug. / fixatc6 kh6i luqng ri6ng nh6.
firkhi

"Ch[n phHn mudi crja nEn t6ng thinh c6ng

li

16.

sr/ trf

t
TrangTl9 - Me d6 thi 361


\

t\.

C6u 30: Bii5t kh0i lugng ri6ng cua_ ktr6ng khf & 00c
00C vd l,0r.1Ospa le l,zgJ0-3glcm3. Kh6i lrrgn*-ri.ng
cira kh6ng khi O 1000C ,ra Z,OO, l05pa li :

I

.

A. nv I ,87 .1 0-3glcryn'
C. N 0,0255g/crn3.

/

B. nv l,8g/cm3.

D. nv 1,87$cm3

d

{-o

ct..

)t

'

uot d ru kf ^**4' ,,qql*l

tff?

,/"i

.

/ t
.,t$;

L*-f*
I

{;Y"L-'o

'1.

{

s.

at|

,.,

"Ch[n phEn mudi c0a nEn t6ng thanh c6ng Ie

sf ttJtin vir dem hdt nghi lgffin"
Trang 8lg - MA A6 tiri 3Gl


i Hf Ffi = r{ i E" r.{E$..g }fl,r_Ec 8,i01? _.zsjlg-E

r.rEE?
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plaumig nxr:,a rigang ffiOd g6c ,f,50
Arg*; E0in-*$y aa lS$fq .T'rr-rh iO*S crea Erge d6
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rdrig{ d$;;giqrc in+f .uf*y un6o vai di[* *ry
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es dfiv
ni*.f.*mr ISm s,* flrr]* iri$e: e:frng"tr* I tilT.H$i rn$i nf;rag rxi* khi f#mgXm3r.g!#ru mr$f.
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treng kuo:rg hgry haa vSt chu5fu €*ng e6 pl*rcnig ruS$ggtr
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h.

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niirra B!!:stEtg nhu. hIE& yE.

;ffi;ffi?E#Hr*l sE ry r#r, bu*s ffi6J rE+Fn +essr
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HQC rci z' NAvr n-Q^c zol3;3014
MoN: vAT r,{'. xnol 10 c0 BAN
,
Tltdi gian: 45 Phtitt
.t
gi6v bdi
(trotg

dfing
dung
nQi
tnann
Ae
iau
ronsia"
trpoe
ch6
Cffu 1: (1,5rti6m) DiAn vio
9ay
cuT tir c\.oiA.n tucrnqlns vdi m6i cdu) '
ghi
ita"
a5-uEi,
tim, c6c ,rn khoniril
"t
AQne thl vec-to dQns lugng cria n6 c6 hudng
rniOt vflt dang
"t"y6" rnQt vQt c6 dugc Oo nO dang chuyiSn" dQng gqi ld'
". Darlg ning lugng-ma
b.
vflt la
. .. . crla trQng 1qc thi co ndng ctra
c. Khi mqt v4t rh";A;6il ffong trgng
dai luqng b6o
m6t
'po*g
d4ng
Aan"g tich trong hq tqra d0 Q,T) c6

J.
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tat
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"a
t6c dung vio vQt sinh c6ng

Di
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todn.

g.

trubng.

(

pbtE ndng ctia v$t:...,. n6u luc

:l),il

Jfu:

ffiT}6

.unu trong trulng hqp t6ng quat

r Khi ndo thi cong cria mQt lu-c c6 si'6 tri

6m ?
duong? Khi nlo thi cdng cria mQt lgc c6 c6ng
li cOng duong hay 6m ?
b. COng cria ngga k6o xe vd eria xe k6o ngga

gi6m
dinh, git cho c6ng A khdng thay d6i vi mu6n
c. Khi k6o vflt tr€n mot do?n dulng s nh6t
luc k6o thi cdn"chri diAu gi
*!^ - t-!^
mot khoi khi e nhiQt dQ270c,6p
c6u 3: 1t,5 diem) MQt xy-ranh c6 pirtong d6ng kin chrla
su6t I atm.
thi th6 tich t6ng 1,5 lan so v6i lirc dau' Tinh 6p
a) N*ng n6ng t..r z -c ^t
su6t crin kh6i khi trong xy-lanh lirc
chAt khi di 1,5 lAn thi
gi6m th6 tich

ta
d.i,
khdng
C
nhioti6'*r'
git
ta
b) Ngay tirc niy
rrav ra 6ao nhi6u?
ao urlit"'Jvuffii
h;c crng bA rnat? vi6t cong thric'

f

?.

^

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cfiu

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ndo ?
,dffii;Qt hsng khi Ii tuong hg thric Lu = Q ,Q>0 diSn t6 qu6 trinh
Q:250J lim cho
-AD: nguli ta truy6npno mrOi-ttrit ong mqt xilanh mqt-ntrlft.lu*ngt16 tang hav giim
[ di .Nqi n6ng cfia kh6i khi
kh6i khi rhuc hien cong A: 150i ;afft
bao nhi6u?
Cflu 6: (1,5 tti6m)
kh6ng bi
treo thigs dung gJ3"g th6i ban dau
MOt ld xo c6 krroi luqng ktrong dang k€ ilugc
560.sit i ro xo'd6n raZ,&cm'Ldv
oo
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B: 10m/s'.
etQ.ctmg cria ld-xo?
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tit oA,,' ti6t aT' nghie"g dai 10 1r' 8: 10 rn/s2'

fi;;;;

rusng 500 g trust kh.ng ma sdt,
a.Tinh c$ng ctra sdelpc t6c dgng 10n vflt'
b. Tinh van i6c cira vflt 0 ch6n d6c.


"&m KIHM TRA Hoc rci e
t.i rt) c$ nAru * TII$I GIAN 6o'
( md cd t(} cfiu , m$n cffiu t gidm )
,a

*5

I

r N6u dinh nghia vi vi6t cdng thfc cta dQng nang ? Khi ndo dQng n6ng cta v4t tang
l€n, giam di '?
Ciiw2 r Vi6t cong thuc cua sy no.kh6i , chf thich cdc d4i lugng trong c6ng thtc Jrong
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Cfru

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Cfru 3; NCu dlnh nghTa nQi n[ng cria mQt vat. Ngi ndng cta m$t v4t php thuQc vdo nhigt dd
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suy-ra phrrcrng trinh cria ilinh ludt B6i-lcy Ma-ri-6t.
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Tonte2OJ. Ngi ndng cua khi t[ng hay giim , mQt luqng li bao nhi€uiun ?
6 .' Mqt sqi ddy tii tliQn o nhiQt dq 300C c6 chiAu ddi 2000m. Cho c{,: I1,5.10-un(. O

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Cfru 9; ThA rnQt thoi d6ng co khdi lugng 0,5kg o nhiet d9 800C vio 0,25kg nudc 0 nhief dg
t . Bo qua su trao d6i nhiQt vdi c6c v4t khric. NfriQt dO khi c6 cdn bing nhigi lA 380C .Cho
nhiQt dung ri0ng ptia ddng vi ctra nu6c l6n luqt ld 4CI0Jlkg.K vi +ZOilkg.K .Tinh nhiQt
lugng do thrii ddng toa ra vd tim nhiQt d0 t cua nu0c .
Cfru 10.'Toa xe I c6 fhOi luqne 2tinch4y vdi v4n ttlc-Sm/s d6n va ch4m vdo toaxe [I
duqgen cO kh6i lugng 5 t6n .S1u va cham toa II chuytin dQng v6i vfln tdc 3m/s .X6c dinh
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Cfru 3.' NCu dlnh nghia n6i ndng cria mQt v{t. NQi n[ng cfia mQt vflt php thuQc vdo nhiQt
vi thi5 tich cria vft : ldm sao bii5t dugc nQi nlng cta mQt v4t td da thay rl6i ?
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Cfru 9.' Thi mQt th6i rt6ng c6 kh5i
0,25kg nudc sp
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