河北省保定市2020年高考物理摸底試卷

河北省保定高考理摸底試解析版一不項(xiàng)擇（題個(gè)小，小4分，分每題出四選中其小題有個(gè)正的8-10小題多選正，部對(duì)分，對(duì)不全分，錯(cuò)得0）3A

GB

G

GCGGDGGABAAB1sABCADAB1.8m0.05s10m/sAB6ND1/20

12121212121212120gAABA

CBDBnAOOnBOnCnDABmv37gsin370.6A

B

C

D

+130A12B2

C22/20

D

2222ABCDRgnA2xB2CD1037vt01kgB2stA10m/sBAsin37cos37AB48JC12JD二實(shí)題本共2個(gè)小，分cmC

m/s3/20

ABABABABABABmmmmmmm12312AAB1AABmBdABCgDEAB2AB

mmAC

ABABABAB

BD

ABAABA34ttt三解題本共4個(gè)小，分13ts31214ABABB0.5AmBg4/20

1AABABABBBAB115ABBg1A2B16RACcos5312OBBOB5/20

2020年河北保定市高考理摸底試參考答案試題解析一不項(xiàng)擇（題個(gè)小，小4分，分每題出四選中其小題有個(gè)正的8-10小題多選正，部對(duì)分，對(duì)不全分，錯(cuò)得0）3A

GB

G

GCGGDGGmgFsin30FT+Tcos30mgB

GBACD本6/20

ABABB2ABABB2ABAAB1sABCADABxtBAAtBAB1sAx0.5mBx1m1sABBCAx2m2sABCDB1m/sBAABDC此1.8m0.05s10m/s

AB6ND7/20

221221根

mvmv0.505.5N5.5NACDB本gAABA

CBDB剪ABaA8/20

BAAB1212121BAAB1212121212CDFsin0F

CDA本nAOOnBOnCnDABmSr

ABCTOABCDDAvr9/20

0x112221200x11222120v37gsin37A

B

C

D

+1Gfmgcos370.4mgg0.2gtt+t

+1CC30A12B2

C2

Dv10/

v

DABCD本ABCD非AABBCCDDBC本RgnA2x11/

B2CD兩mgm

T2

ABCDmgm

vCDAC本1037vt01kgB2stA10m/sBAsin37cos37AB48JC12JD12/

111112221211111222121f1212v2m/s2sQsx解mgcos37mgsin370則故A2s2s2sv2svt2svt

xvt+

mgx+xsin37Bfmgsin375Nwmgcos37x34J故2s

6m2sQx12J故AD分2svt二實(shí)題本共2個(gè)小，分cmC13/

2241526224152631222ABx500.02sO0.10sCv

m/s0.68m/seq\o\ac(△,x)eq\o\ac(△,)aTssTssTssT

222a+aa

0.68要12AAB1AEAABmBdABCg14/

ABABmmABABmmmmmmm123A123A1ABADEAB2AB

mmAC

ABABABAB

BD

ABAABA34ttt

+

234dmvvvvmvv

+

mABAE2mgsintanθ15/

2020C34

+

AE

+

本三解題本共4個(gè)小，分13ts312根tvt+a

xx

2

解14ABABB16/

ABBABBAAABBABBABBAAABB0.5AmBg1AABABABBBAB1AB2AABBmgBAB3mg地BFmg0.5mg地2AtBl1AamgmaAaBaAmg

ABFmg3l

4mgAAABABBBAB14mg15AB17/20

BABABg1A2B小lBvBAvTA2B0BNNNNfffA2B解18/

B2BBBB2BBB16RACcos5312OB