(Luyện thi cấp tốc Lý) Những vấn đề quan trọng với con lắc lò xo_Trắc nghiệm và đáp án
Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (141.52 KB, 7 trang )
NHỮNG VẤN ĐỀ QUAN TRỌNG CỦA CON LẮC LÒ XO
Câu 1: !
"# $%&'&%()%*%&+*%
,# -&(.&*%&.(
# /'0*%&.(12304/'0
$# "5,5.
Câu 2: 60*%&.(712%89!
"#:/,#;#/$#<
Câu 3: =>%?-8không @
"#AB
C
"
C
D
E
=
%FG?H;0&+7#
,#AB
C
)
0
C
D
E
=
%FG?H&0I,#
#AB
CC
"
C
D
E
ω=
%FGA9J%#
$#AB
CC
"
C
D
)
C
D
E
==
%F;A9J%
Câu 4 : 3>?-Đúng#%04%()%KB0%()%
HL/1
"#M1N4L*%&'%KB#
,#A1N4L*%&'%KB0%H#
#M1N4L*%&'%()%H#
$#MA1N4L%()%H#
Câu 5: O&%()%*%&.%J%31G7%PQ
R
8%0431GH
L/1
"#A1N;S8/*%&'%#
,#A1N;?T&*%&'%#
#S8/*%&8%04%*%&J%31GH#
$#S8/*%&8%04%*%&J%31GH#
U%#0VWA1'( D
Câu 6#O&%()%*%&04S8/DRUX#6Y%0J%31GKB)/
*140Z?H&%7C[\%0*%&#/%7&70Z
?H5.*1G14)/*14#=1GL*%&'0!
A#)]C%8
( )
t#CR
π
^58_# B#)]C%8
( )
ππ
+t#CR
^58_#
C.)]C%8
−
C
#CR
π
π
t
^58_# D#)]
C
%8
+
C
#CR
π
π
t
^58_#
Câu 7#O&0/12]D*%&.%J%31G04L
]C8#I0Z?H040
%
]<D5P`8]DRa`8#]R 0I0Z
?HJ%.*1G#=1GL*%&'0?-B%
"#)]Q%8^
π
b
π
`C_^_ ,#)]DR%8^
π
b
π
`C_^_
#)]Q%8
π
^_ $#)]DR%8^
π
c
π
`C_^_
Câu 8.O&%()%[0d/12]eR0()%/12A
>-5ST12f/Z#*%&.%J%31GKB04S8/P5Q
UX# % I> L *% &5 ( )% F PR 0 * F Qg # F
]h5e`8
C
#/%7&N0Z?H5.*1G14)/5]R ()%
F#=1GL*%&'0*7!
"#)]e%8^h
π
c
π
_ ,#)]e%8^h
π
_
#)]e
C
%8^h
π
c
π
_ $#)]e
C
%8^h
π
_
Câu 9#%()%[00()%&BJ%KB#i,()%j&
%7DR# ]R50BT5.%0/PR`8J%.Ik7%#
=1GL*%&'00()%#
"#)]P%8^DRcπ_^58_ ,#)]C%8^DRcπ`C_^58_#
#)]P%8DR^58_#l $#)]P%8^DRcπ`C_^58_
Câu 10# O&%()%J%KB50J%]PRR5&B'()%
6]DRRW`#F]DR`8
C
5
DR
C
≈
π
#6Y%0)/*14,C[.%00
/
<DR
π
=v
`8514T#/mN,5m)14T5]R.0/#
=1GL*%&'0!
"#
_
<
C
Q%8^P
π
π
+=
tx
,#
_
<
P
Q%8^P
π
π
+=
tx
#
_
<
Q%8^P
π
π
+=
tx
$#
_
g
Q8^C
π
π
+=
tx
U%#0VWA1'( C
Câu 11#J%&%()%J%31GKB#6%N7>?HL(
)%jP#n0Z?H014TTP[?A\#W12'
*%&>Z%8@?;]DW`
"#E]Ro ,#E]e#DR
bC
o #E]eo $#E]Po
Câu 12#O&0d0%&()%&B]CRRW`*%&04?T&"]Q#
60>0Z?T<&
"#R5CQo ,#R5RPo #R5Rho $#R5CDo
Câu 13:O&F-/12]QRR*%&.%04p]C8#W
12*%&'E]R5RRPo#,T&*%&'F-!
"#P# ,#C# #Dg# $#C5Q#
Câu 14#O&0d]CRR0%&()%&B]CRRW`J%
q
1
r
1G
r
)A
r
#%
r
*%&TI
s
t
%*
u
DR#v
r
w
u
T
r
%
r
%
u
)%?
t
J
r
C#
"#R5Dgo ,#R5RPo #R5Rho $#R5CDo
Câu 15#O& %()% [0d /12 ]R5P0()% &B
]DRRW`#6Y%0x,C[.%&0/?S
_`^QDQ scm
π
#F
DR
C
=
π
#W12*%&'0!
"#R5CPQo# ,#C5PQo# #CP5Qo# $#CPQo#
Câu 16. O&%()%5IS/12]R5C#614%-&L
*%&0431GL!
_^P8Q cmtx
π
=
#W12j.%0!
"#
J
C
DR#C
−
# ,#
J
C
DR#P
−
#
J
D
DR#C
−
# $#
JC
#
Câu 17#OA
t
%
r
%
u
)%*%A
t
T
u
%
u
0G
r
?TA
t
"5
t
A
t
u
%w
u
A
t
?
u
T
r
#
"#
"
)
C
=
,#
"
)
C
=
#
C
)
"
=
$#
"
)
C C
=
Câu 18#O&0/12]D*%&.%J%31G04L]C8#
I0Z?H040
%
]<D#P`8]DRa`8#]R 0I0Z?HJ%.
*1G#7-]R5Q8+3y[>*yT0>Z?%T@
"#QW ,#DRW #DW $#R5DW
U%#0VWA1'( <
Câu 19#O& ()% ]CR W` J% KB5 J% 0% ()% 0 / 12
]CRR#n0Z?H0T&%7Q[?A\#:>Z+7'+
[3y0+[
"#z
3)
]CW{z
)
]QW ,#z
3)
]CW{z
)
]<W
#z
3)
]DW{z
)
]<W $#z
3)
]R5PW{z
)
]R5QW
Câu 20#O& % ( )% ?x I + ' A F ] DR `8
C
# %
]DRR5]DRW`#12fN0Z()%.*+T#,A-0*%
&#>ZxF'+[()%
"#z
]DW ,#z
]RW #z
]R5QW $#z
]CW
Câu 21#O&%()%*%&J%31G04?T&"]R5D0L]R5Q
8#6/12'I]R5CQ#+[+7>*yTI?H?%T
"#PW ,#g5QW #DRW $#PRW
Câu 22#O&%()%*%&N31GKB#()%/12A>-
0&B]PRW`#0/12]CRR#Y%0n0Z?H14
)/&%7Q[?A\%0*%&#+3y[>*y0%0N0Z?T
&4?H?%T@^,?T*14,5?TT,_
"#z
,
]z
]CW ,#z
,
]CW{z
]RW
#z
,
]PW{z
]RW $#z
,
]PW{z
]CW
Câu 23#O&%()%*%&N31GKB#()%/12A>-
0&B]PRW`#0/12]CRR#Y%0n0Z?H14)/
&%7Q[?A\%0*%&#:>Z+70+-'+[
>Z?%T@
"#z
)
]CW{z
]CW ,#z
)
]PW{z
]CW
#z
)
]CW{z
]RW $#z
)
]PW{z
]RW
Câu 24#O&0]CQR04()%dH*%&.%0431GL)]
P%8^C
π
c
π
`P_#+[0+3y[&F3<S;
"#R5eW{R5PW ,#D5CW{R5CW #R5CW{R5CW $#;I>
Câu 25.O&%()%[0d/12]PRR0()%/12A
>-5&B]DRRW`#%12dTd3KT
R
<R
=
α
8%04d
3KHJ%.14T#|10;0Z()%?ZjP[A0
/S%0*%&.%#/%7&N0Z?H5/ ?S
05.*1Gm)14TT#+[+7F3?%TS+[0
N0Z?H!
"#D# ,#C# #< $#P#
U%#0VWA1'( P
Câu 26. O&%()%[&0d/12]R5P0%S()%&
BPRW`#W1Y%Idx0Z?H&%7P[\%*%
&#/*%&+7'0d
"#PR`8 ,#CR`8 #<R`8 $#QR`8
Câu 27. O&%()%[&0/12]DRRJ%0%&()%&B]
DRRW`#60*%&#%I>L*%&500/+7?HgC5e
`8#FaC]DR#/'0I0Z>0Z?HDJ%.*1G
>Z?%T@
"#gC5e`8 ,#QR5CQ`8 #QP5}}`8 $#<g`8
Câu 28. O&%()%*%&J%31GL)]Q%8^Paca`<_#v>Z
0n0Z?HSBD;0Z)]C5QSBC#
"#D`CP8 ,#DD`CP8 #}`CP8 $#e`CP8#
Câu 29. O&()%/12A>-5*CR0&B]R5CW`#W1
J%0%()%&0d/12]CRR0%0*%&.(04
12R5RCQo#v>Z.*+-'()%#
"#DQ ,#bDQ #CQ $#DR
Câu 30. O&()%/12A>-0&B]QRW`#W1J%0%()%
&0d/12]CRRL()%.*<C#~%0
*%&.(0412R5RgCQo#v>Z.*+T'()%#,;/
1]DR`8
C
#
"#C} ,#Ce #C< $#<D
Câu 31. O&()%.*CQ0&B]PRW`#6J%&0d/
12]DRR0%()%0%0*%&.(L0/'070Z
?HDRR`8#v>Z.*+7'()%#
"#CR ,#CC5Q #C}5Q $#<C5Q
Câu 32. O&()%/12A>-50&B]QRW`#W1J%0%()%
&0d/12]DCQ#~%0*%&.(0431GL
*%& #v>Z()%Y%&L#
.*1G14TT#
"#D`g8 ,#D`P #D`<8 $#D`Q8
U%#0VWA1'( Q
