3. S畛 GD-T Qu畉ng Ng達i
Tr動畛ng THCS DTNT T但y Tr
畛 KI畛M TRA H畛C K畛 I
NM H畛C:2012 2013
H畛 v t棚n: ..............
L畛p : ..
MN: V畉t l箪 7
Th畛i gian: 45 ph炭t(KKTGG)
A. TR畉C NGHI畛M:(4 i畛m) Ch畛n ph動董ng 叩n tr畉 l畛i 炭ng cho c叩c c但u sau
C但u 1. Tia ph畉n x畉 tr棚n g動董ng ph畉ng n畉m trong c湛ng m畉t ph畉ng v畛i
A. tia t畛i v 動畛ng vu担ng g坦c v畛i tia t畛i.
B. tia t畛i v ph叩p tuy畉n v畛i g動董ng.
C. 動畛ng ph叩p tuy畉n v畛i g動董ng v 動畛ng vu担ng g坦c v畛i tia t畛i.
D. tia t畛i v ph叩p tuy畉n c畛a g動董ng t畉i i畛m t畛i.
C但u 2. 畉nh 畉o t畉o b畛i g動董ng c畉u l探m l 畉nh
A. l畛n b畉ng v畉t
B. l畛n h董n v畉t.
C. g畉p 担i v畉t
D. b辿 h董n v畉t.
C但u 3. Khi c坦 hi畛n t動畛ng nguy畛t th畛c, v畛 tr鱈 t動董ng 畛i c畛a Tr叩i 畉t, M畉t Tr畛i v M畉t Trng l畉n
l動畛t l
A. Tr叩i 畉t M畉t Tr畛i M畉t Trng.
B. Tr叩i 畉t M畉t Trng M畉t Tr畛i.
C. M畉t Trng Tr叩i 畉t M畉t Tr畛i.
D. M畉t Tr畛i Tr叩i 畉t M畉t Trng.
C但u 4. Trong c叩c h狸nh v畉 d動畛i 但y bi畉t IR l tia ph畉n x畉, h狸nh v畉 no bi畛u di畛n 炭ng tia ph畉n x畉
c畛a 叩nh s叩ng
n
n
n
S
S
R
n
S
S
R
R
I
I
I
I
R
A.
C.
B.
H狸nh 1
C但u 5. Trong c叩c h狸nh v畉 d動畛i 但y, h狸nh v畉 no kh担ng 炭ng?
D.
4. B
B
A
S
A
B'
A.
B'
B
A'
B'
A'
A'
S'
A
B.
C.
D.
H狸nh 2
C但u 6. Trong c叩c b畛 m畉t d動畛i 但y, b畛 m畉t c畛a v畉t ph畉n x畉 但m t畛t nh畉t l:
A. B畛 m畉t c畛a m畛t t畉m v畉i
B. B畛 m畉t c畛a m畛t t畉m k鱈nh
C. B畛 m畉t g畛 gh畛 c畛a m畛t t畉m g畛 m畛m
D. B畛 m畉t c畛a m畛t mi畉ng x畛p.
C但u 7. Ng動畛i ta s畛 d畛ng s畛 ph畉n x畉 c畛a si棚u 但m 畛 x叩c 畛nh 畛 s但u c畛a 叩y bi畛n. Gi畉 s畛 tu ph叩t ra
si棚u 但m truy畛n trong n動畛c v畛i v畉n t畛c 1500m/s v thu 動畛c 但m ph畉n x畉 c畛a n坦 t畛 叩y bi畛n sau 1
gi但y. 畛 s但u c畛a 叩y bi畛n l:
A. 1500 m
B. 1500 km
C. 750 m
D. 750 km
C但u 8. Khi ta nghe th畉y ti畉ng tr畛ng, b畛 ph畉n dao 畛ng ph叩t ra 但m l
A. d湛i tr畛ng.
B. m畉t tr畛ng.
C. tang tr畛ng.
D. vi畛n tr畛ng.
B. T畛 LU畉N:(6 i畛m)
C但u 9. Cho h狸nh 3, bi畉t SI l tia t畛i, IR l tia ph畉n x畉.
R
R
H達y v畉 ti畉p tia t畛i, tia ph畉n x畉 trong c叩c tr動畛ng h畛p
sau v ch畛 r探 chi畛u truy畛n c畛a c叩c tia s叩ng?
C但u 10. nhi畛m ti畉ng 畛n l g狸? H達y ch畛 ra tr動畛ng h畛p
I
I
g但y 担 nhi畛m ti畉ng 畛n g畉n n董i em sinh s畛ng v 畛 ra
a.
bi畛n ph叩p ch畛ng 担 nhi畛m ti畉ng 畛n 坦?
b.
H狸nh 3
....H畉t....
Bi lm
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
.......
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................
................................................................................................................................................................