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.

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

B.  = 
0
+
2
1

0
t + t
2C.  = (
0

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


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



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)








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

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

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

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

Câu31(QID: 31. Câu hỏi ngắn)

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

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


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


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
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.
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

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

A. W

=
22
1
12
mL


B. W

=
22
1
2
mL


*C. W

=
22
1
24
mL


D. W

=

=
1
2
mR


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

*B. W


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

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

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




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


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

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

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

13

 
t+) t
 =
m
kCâu65(QID: 65. Câu hỏi ngắn)


t+, 



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

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+)
= -

max
=
2
A
T

2
()t
T


Câu72(QID: 72. Câu hỏi ngắn)







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


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


2
= 2m
1

*B. m
2
= 4m
1

C. m
2
=
1
1
4
m

D. m
2
=
1
1
2
mCâu77(QID: 77. Câu hỏi ngắn)

 


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

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

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




D.
1
2
l
T
g

Câu82(QID: 82. Câu hỏi ngắn)


t+)

2
l
T
g



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

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



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





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

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



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


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


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 ( )

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

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

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)


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



t
=
2
1
2
g
ms
l


22
0
()
g
ss
l




=
2
2
0
2
1

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

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

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

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

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