Tài liệu KIỂM TRA KIẾN THỨC VẬT LÝ LỚP 12. phần 1 pdf

1
KIỂM TRA KIẾN THỨC VẬT LÝ LỚP 12.
ÔN THI TỐT NGHIỆP THPT & ĐẠI HỌC.



Câu1(QID: 1. Câu hỏi ngắn)


 



Câu2(QID: 2. Câu hỏi ngắn)


 



Câu3(QID: 3. Câu hỏi ngắn)

 




Câu4(QID: 4. Câu hỏi ngắn)

A. 3 rad/s.

*B. 6 rad/s.
C. 108  rad/s.
D. 18 rad/s

Câu5(QID: 5. Câu hỏi ngắn)
Trong c




D. góc quay

Câu6(QID: 6. Câu hỏi ngắn)




D. góc quay

Câu7(QID: 7. Câu hỏi ngắn)



2




Câu8(QID: 8. Câu hỏi ngắn)


0
và 
0

0
= 0,  

*A.  = 
0
+ 
0
t +
2
1
t
2

B.  = 
0
+
2
1

0
t + t
2


C.  = (
0

+ 
0
)t +
2
1
t
2

D.  = 
0
+ t +
2
1
t
2

Câu9(QID: 9. Câu hỏi ngắn)
 





Câu10(QID: 10. Câu hỏi ngắn)






Câu11(QID: 11. Câu hỏi ngắn)






Câu12(QID: 12. Câu hỏi ngắn)



  a
n
= r.
2
*C.

t
= r.
2
D.



2
2
4
2
rr


Câu13(QID: 13. Câu hỏi ngắn)

0



3
 > 0
 < 0

0
> 0

0
< 0

Câu14(QID: 14. Câu hỏi ngắn)





gian

Câu15(QID: 15. Câu hỏi ngắn)


A. 20 rad

B. 100 rad
C. 40 rad
*D. 200 rad

Câu16(QID: 16. Câu hỏi ngắn)


*A.  = -0,3 rad/s
2
; n = 9,55 vòng
B.  = -0,3 rad/s
2
; n = 19,1 vòng
C.  = -120 rad/s
2
; n = 9,55 vòng
D.  = -3,33 rad/s
2
; n = 9,55 vòng

Câu17(QID: 17. Câu hỏi ngắn)

 
A.  = 6 rad/s
2
;  = 12 rad/s.
*B.  = 1,5 rad/s
2
;  = 3 rad/s
C.  = 15 rad/s

2
;  = 30 rad/s.
D.  = 0,75 rad/s
2
;  = 1,5 rad/s

Câu18(QID: 18. Câu hỏi ngắn)



A. v = 400 m/s
B. v = 200 m/s
*C. v = 20 m/s
D. v = 1 m/s

Câu19(QID: 19. Câu hỏi ngắn)
-0,25
rad/s
2

0


4
*A. n = 7,96 vòng
B. n = 50 vòng
C. n = 10 vòng
D. n = 0,796 vòng

Câu20(QID: 20. Câu hỏi ngắn)



A. v = 0,18 m/s ; = 11,12 rad/s
B. v = 4 m/s ; = 4 rad/s
C. v = 2 m/s; = 5,56 rad/s
*D. v = 4 m/s; = 11,12 rad/s

Câu21(QID: 21. Câu hỏi ngắn)






Câu22(QID: 22. Câu hỏi ngắn)

quay?





Câu23(QID: 23. Câu hỏi ngắn)







Câu24(QID: 24. Câu hỏi ngắn)


A. I =
1
2
mr
2
.
*B. I = mr
2
C.
I =
1
12
mr
2
.
D. I =
2
5
mr
2

Câu25(QID: 25. Câu hỏi ngắn)




5





Câu26(QID: 26. Câu hỏi ngắn)
) vuông

A. I = mR
2

B. I =
1
12
mR
2

*C. I =
1
2
mR
2

D. I =
2
5
mR
2

Câu27(QID: 27. Câu hỏi ngắn)
 

*A. M = mr
2

B. M =
1
2
mr
2

 M = mr
2

D. M =
1
2
mr
2

Câu28(QID: 28. Câu hỏi ngắn)

 
A. Momen quán 
 

 

Câu29(QID: 29. Câu hỏi ngắn)







Câu30(QID: 30. Câu hỏi ngắn)
). 





Câu31(QID: 31. Câu hỏi ngắn)

6







Câu32(QID: 32. Câu hỏi ngắn)






Câu33(QID: 33. Câu hỏi ngắn)

mo
A. I = 3 kg.m
2

*B. I = 1,5 kg.m
2
C.
I = 7,5 kg.m
2

D. I = 23,43 kg.m
2

Câu34(QID: 34. Câu hỏi ngắn)

tính 12 kg.m
2

2

*A. 15s
B. 30s
C. 25s
D. 180s

Câu35(QID: 35. Câu hỏi ngắn)

kg.m

2

*A. 900 rad
B. 4 500 rad
C. 9 000 rad
D. 600 rad

Câu36(QID: 36. Câu hỏi ngắn)



A. M
F
= 0,83 N.m.
B. M
F
= 0,026 N.m.
*C. M
F
= 0,083 N.m.
D. M
F
= 0,166 N.m.

Câu37(QID: 37. Câu hỏi ngắn)

1


2



7

2


A. T = 30,8 N; a = 5,6 m/s
2
.
B. T = 8,4 N; a = 2,8 m/s
2
C.
T = 12,6 N a = 5,6 m/s
2
.
*D. T = 8,4 N; a = 5,6 m/s
2

Câu38(QID: 38. Câu hỏi ngắn)



0

2



2


A. I = 0,288 kg.m
2

*B. I = 0,144 kg.m
2
C.
I = 0,336 kg.m
2

D. I = 1,44 kg.m
2

Câu39(QID: 39. Câu hỏi ngắn)

1
= 3 kg và m
2


2
và bán
c là

2

A. a = 1,42 m/s
2

B. a = 2,4 m/s

2

*C. a = 1,2 m/s
2

D. a = 12 m/s
2


Câu40(QID: 40. Câu hỏi ngắn)

1
, bán kính r
1
yên qua tâm

2
, bán kính r
2


3


A.
3
2
1
1 2 3
2

2
2mg
a
r
m m m
r




8
B.
3
2
1
1 2 3
2
2
1
()
2
mg
a
r
m m m
r



C.

3
1
1 2 3
2
11
22
mg
a
r
m m m
r



*D.
3
2
1
1 2 3
2
2
11
22
mg
a
r
m m m
r



Câu41(QID: 41. Câu hỏi ngắn)









Câu42(QID: 42. Câu hỏi ngắn)



 


Câu43(QID: 43. Câu hỏi ngắn)






Câu44(QID: 44. Câu hỏi ngắn)
 
i
, v

i
, r
i
là


A. W

=
2
1
2
i
m


B. W

=
22
1
2
ii
mr


C. W

=
2

1
2
ii
mv

*D. W

=
2
1
2
I



Câu45(QID: 45. Câu hỏi ngắn)

9

góc 
A. W

=
22
1
2
mR


*B. W


=
22
1
5
mR


C. W

=
22
2
5
mR


D. W

=
24
1
5
mR



Câu46(QID: 46. Câu hỏi ngắn)



A. W

=
22
1
12
mL


B. W

=
22
1
2
mL


*C. W

=
22
1
24
mL


D. W

=

2
1
5
mL



Câu47(QID: 47. Câu hỏi ngắn)


A. W

=
22
1
12
mR


B. W

=
22
1
5
mR


C. W


=
1
2
mR


*D. W

=
22
1
2
mR



Câu48(QID: 48. Câu hỏi ngắn)


A. W

=
22
1
2
mR


*B. W


=
22
1
4
mR


C. W

=
22
1
5
mR


D. W

=
22
1
12
mR



Câu49(QID: 49. Câu hỏi ngắn)

10




2


 

2


Câu50(QID: 50. Câu hỏi ngắn)




2


2

 


Câu51(QID: 51. Câu hỏi ngắn)
 

c


A. W =

22
11
22
c
Iv m



B. W =
2
1
2
c
mv

C. W =
2
1
2
I


*D. W =
22
11
22
c
mv I



Câu52(QID: 52. Câu hỏi ngắn)




 




Câu53(QID: 53. Câu hỏi ngắn)


c
 

A. W =
22
11
22
c
Iv m



*B. W =
22
1

()
2
mR I



C. W =
2
1
()
2
c
I
mv
R



11
D. W =
2
1
()
2
mR I




Câu54(QID: 54. Câu hỏi ngắn)



2
thì momen quán tính lúc sau là:
*A. 0,9 kg.m
2

B. 14,4 kg.m
2
C.
9 kg.m
2

D. 1,44 kg.m
2

Câu55(QID: 55. Câu hỏi ngắn)



A. 0,122 vòng/giây
*B. 0,735 vòng/giây
C. 1,22 vòng/giây
D. 7,35 vòng/giây

Câu56(QID: 56. Câu hỏi ngắn)

góc  

A. 221,76 rad/s

B. 58,4 rad/s.
C. 4,8 rad/s
*D. 5,84 rad/s

Câu57(QID: 57. Câu hỏi ngắn)

1


2



A.
2
2
2
1
m vR
I m R




B.
2
1
m vR
I m R





C.
2
2
2
1
m v R
I m R




*D.
2
2
1
m vR
I m R





Câu58(QID: 58. Câu hỏi ngắn)
 

A. 24 kg.m
2

*B. 0,2 kg.m
2


12
C. 48 kg.m
2

D. 2,4 kg.m
2


Câu59(QID: 59. Câu hỏi ngắn)
g.m
2


*A. W

= 21 600 J
B. W

= 43 200 J
C. W

= 2 400 J
D. W

= 25 600 J

Câu60(QID: 60. Câu hỏi ngắn)



A. W

= 4 500 J
B. W

= 6 000 J
C. W

= 2 400 J
*D. W

= 9 000 J

Câu61(QID: 61. Câu hỏi ngắn)






Câu62(QID: 62. Câu hỏi ngắn)


*A.
'' 0

k
xx
m


B.
'' 0
k
xx
m


C.
'0
k
xx
m


D.
'' 0
k
xx
m



Câu63(QID: 63. Câu hỏi ngắn)







Câu64(QID: 64. Câu hỏi ngắn)
 
trình x= Acos(t+

13

 
t+) t
 =
m
k


Câu65(QID: 65. Câu hỏi ngắn)


t+, 



Câu66(QID: 66. Câu hỏi ngắn)

A. 






Câu67(QID: 67. Câu hỏi ngắn)






Câu68(QID: 68. Câu hỏi ngắn)


*A.
2
m
T
k



B.
2
k
T
m



C.
1

2
m
T
k



D.
1
2
k
T
m




Câu69(QID: 69. Câu hỏi ngắn)




D. 

Câu70(QID: 70. Câu hỏi ngắn)
t+). 

14
-Asin(t+)
= -

2
Acos(t+)

2





Câu71(QID: 71. Câu hỏi ngắn)

 là v
max
=
2
2
A
T



2
2
4
x
T





max
=
2
A
T




2
()t
T





Câu72(QID: 72. Câu hỏi ngắn)







Câu73(QID: 73. Câu hỏi ngắn)
 600 N/m.


là:

A.
0,05cos(40 )( )
2
x t m



B.
0,05cos40 ( )x t m

C.
2cos(40 )( )
2
x t m



*D.
0,05cos(40 )( )
2
x t m




Câu74(QID: 74. Câu hỏi ngắn)

1

1


2


2

1
và m
2


*A. T = 5 s
B. T = 7 s
C. T = 1 s
D. T = 3,5 s

Câu75(QID: 75. Câu hỏi ngắn)

15

1


A. T
2
=
1
2
T

B. T
2
= 2T
1

C. T
2


= T
1
2

*D.
1
2
2
T
T 


Câu76(QID: 76. Câu hỏi ngắn)


1

2


A. m

2
= 2m
1

*B. m
2
= 4m
1

C. m
2
=
1
1
4
m

D. m
2
=
1
1
2
m


Câu77(QID: 77. Câu hỏi ngắn)

 


A.
2cos(20 )( )
2
x t cm



*B.
2cos20 ( )x t cm

C.
2cos(20 )( )
2
x t cm



D.
2sin20 ( )x t cm


Câu78(QID: 78. Câu hỏi ngắn)
 

sai?
 = 10 rad/s

 = 0

5

s



Câu79(QID: 79. Câu hỏi ngắn)


2


A. v = 31,4 cm/s
B. v = 18,3 cm/s
*C. v = 54,7 cm/s

16
D. v = 42,6 cm/s

Câu80(QID: 80. Câu hỏi ngắn)

1
, k
2




12
12
()
2

a
m k k
T
kk




12
2
b
m
T
kk



;

12
2
b
m
T
kk




12

12
()
2
a
m k k
T
kk



;
*C.
12
2
ab
m
TT
kk




D.
12
12
()
2
ab
m k k
TT

kk





Câu81(QID: 81. Câu hỏi ngắn)


A.
2
g
T
l



*B.
2
l
T
g



C.
2
l
T
g




D.
1
2
l
T
g




Câu82(QID: 82. Câu hỏi ngắn)


t+)

2
l
T
g





17


Câu83(QID: 83. Câu hỏi ngắn)






Câu84(QID: 84. Câu hỏi ngắn)






Câu85(QID: 85. Câu hỏi ngắn)



2


2




Câu86(QID: 86. Câu hỏi ngắn)





50
T



2
T

Câu87(QID: 87. Câu hỏi ngắn)



0


A.
0
( os )
g
v l c
l



*B.
0
2 ( os )v gl l c



C.
0
2 ( os )v gl l c



D.
0
2
( os )
g
v l c
l




Câu88(QID: 88. Câu hỏi ngắn)

18


0


A.
0
(2 3cos )T mg




B.
0
(3cos 2)T mg



C.
0
3
cos
2
T mg



*D.
0
(3 2cos )T mg




Câu89(QID: 89. Câu hỏi ngắn)



A.
mgI

=
d


*B.
mgd
=
I


C.
mI
=
gd


D.
2mg
=
Id



Câu90(QID: 90. Câu hỏi ngắn)






Câu91(QID: 91. Câu hỏi ngắn)






Câu92(QID: 92. Câu hỏi ngắn)


t



Câu93(QID: 93. Câu hỏi ngắn)


0

0
=12,5


19
A.
5cos(2,5 )( )
2
s t cm



B.
5 2 cos(2,5 )( )
2
s t cm



*C.
5cos(2,5 )( )
2
s t cm



D.
5cos(2,512 )( )
2
s t cm




Câu94(QID: 94. Câu hỏi ngắn)

 = 60
0


 = 30

0
là v = 3,3 m/s
B là v
max
= 3,87 m/s


Câu95(QID: 95. Câu hỏi ngắn)

1

1

2

2
= 0,8

1
+l
2

A. T = 1,4 s
*B. T=1s
C. T=0,2 s
D. T=0,7s

Câu96(QID: 96. Câu hỏi ngắn)







D. T=0

Câu97(QID: 97. Câu hỏi ngắn)

1
= 64 cm, l
2

Hai con 
0

2
m/s
2


A.  = 20s
B.  = 12s
C.  = 8s
*D.  = 14,4s

Câu98(QID: 98. Câu hỏi ngắn)
  

2



A. l = 9 cm và f = 1 Hz
*B. l = 25 cm và f = 1 Hz

20
C. l = 41 cm và f = 1 Hz
D. l = 25 cm và f = 6 Hz

Câu99(QID: 99. Câu hỏi ngắn)



A.
22
12
2
12
ga
T
La




B.
2
12
2
12
La

T
ga




*C.
22
12
2
12
La
T
ga




D.
22
12
2
12
La
T
ga




Câu100(QID: 100. Câu hỏi ngắn)






*A. g = 9,82 m/s
2
B.
g = 9,76 m/s
2
C.
g = 10 m/s
2
D.
g = 9,28 m/s
2

Câu101(QID: 101. Câu hỏi ngắn)
t+). Thông tin



t
=
2 2 2
1
os ( )

2
m A c t
  




=
2 2 2
1
sin ( )
2
m A t
  


Hình 10

21

t
=
22
1
4
mA



Câu102(QID: 102. Câu hỏi ngắn)


 :
*A. W =
2
1
2
kA

B. W =
2 2 2
1
2
mA


C. W =
22
1
2
kA

D. W =
22
1
2
A



Câu103(QID: 103. Câu hỏi ngắn)

 

A.
1
2


B.


C.
4


*D.
2



Câu104(QID: 104. Câu hỏi ngắn)




2
T


 =
4

T



Câu105(QID: 105. Câu hỏi ngắn)


0
 
*A.
0
k
vx
m


B.
0
2
k
vx
m


C.
0
2
k
vx
m



D.
0
m
vx
k



Câu106(QID: 106. Câu hỏi ngắn)

22
 

A.
22
1
2
v A x



B.
2 2 2
v A x



C.

22
()v A x



*D.
22
v A x




Câu107(QID: 107. Câu hỏi ngắn)




C.
3



Câu108(QID: 108. Câu hỏi ngắn)






Câu109(QID: 109. Câu hỏi ngắn)


0
khi

2
l

A. 2v
0

B.
2
v
0

C.
0
1
2
v

*D.
0
1
2
v


Câu110(QID: 110. Câu hỏi ngắn)



A. W
t
=
2
2
g
ms
l

B. W
t
=
2
2
2
1
2
g
ms
l

C. W
t
=
2
1
4
g
ms

l

*D. W
t
=
2
1
2
g
ms
l


Câu111(QID: 111. Câu hỏi ngắn)

23

-
0




=
0
1
()
2
g
m s s

l



t
=
2
1
2
g
ms
l


22
0
()
g
ss
l




=
2
2
0
2
1

2
g
ms
l


Câu112(QID: 112. Câu hỏi ngắn)

1
và A
2

1
> A
2

1
và W
2


A. W
1
= W
2
B.
W
1
> W
2

C.
W
1
< W
2
*D.

1
và W
2

Câu113(QID: 113. Câu hỏi ngắn)

0




 = 10 rad/s


Câu114(QID: 114. Câu hỏi ngắn)

2
A



*A.
3

W
4

B.
1
W
2

C.
2W

D.
4W


Câu115(QID: 115. Câu hỏi ngắn)


A.
2
A
x 

*B.
2
A
x 

C.
4

A
x 


24
D.
22
A
x 


Câu116(QID: 116. Câu hỏi ngắn)






0t
=0,18 J
 

=0,5 J


Câu117(QID: 117. Câu hỏi ngắn)


A. v = 0,12 m/s
*B. v = 0,14 m/s

C. v = 0,19 m/s
D. v = 0,0196 m/s

Câu118(QID: 118. Câu hỏi ngắn)


2


0
=30
0

A. v = 2,59 m/s; T = 23,65 N
*B. v = 1,64 m/s; T = 6,35 N
C. v = 2,59 m/s; T = 6,35 N
D. v = 1,64 m/s; T = 23,65 N

Câu119(QID: 119. Câu hỏi ngắn)


2


m
=60
0
 = 30
0
là:

A. v = 14,6 m/s; T = 3,99 N
*B. v = 3,82 m/s; T = 7,98 N
C. v = 14,6 m/s; T = 7,98 N
D. v = 3,82 m/s; T = 3,99 N

Câu120(QID: 120. Câu hỏi ngắn)
 

0

A. W =
2 2 2
1
( ' )
2
mgl ml



B. W =
2 2 2
1
( ' )
4
mgl ml



C. W =
2 2 2

1
( ' )
4
mgl ml




25
*D. W =
2 2 2
1
( ' )
2
mgl ml




Câu121(QID: 121. Câu hỏi ngắn)






Câu122(QID: 122. Câu hỏi ngắn)








Câu123(QID: 123. Câu hỏi ngắn)

 
*A. Không khí   
  không khí
  không khí
 không khí  

Câu124(QID: 124. Câu hỏi ngắn)




*C.
2

D. 2
2


Câu125(QID: 125. Câu hỏi ngắn)






D. 

Câu126(QID: 126. Câu hỏi ngắn)






Câu127(QID: 127. Câu hỏi ngắn)
