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浙江省杭州高中高二物理下学期期中试题(无答案)新人教版


2012



1. 90 100

2.

8 3

24

1

A.

B.

C. D.



2 e=EmSint



Ae=EmSint

Be=EmSin2t

Ce=2EmSint

De=2EmSin2t

3

A

B

C

D

4.

,, v1v2

, v2=2v1,, T1 T2

AT2=T1

BT2=2T1.

CT2=4T1

DT2=T1/4

5

A



B



C

D

6,,



A.,C E

B.M P

C.P M

D.BD

7



A B C D 8,. , A B C D, 4 4 16 9 A B C D 10 S L I1 E I2 S E E A L I1
B L b a
C E I1 I2 D E I2
11
R m F h A B mgh R C R D F mgh R 12 5cm 2Hz x x

A
B C x6m D 025s x7m y>0

20

131 1mm 10



mm

2,
, , 1 2
________; ____________; ____________. 14 m K

T 2 m K





m 50 T

m(10-3kg) 5.00

10.00

15.00

20.00

25.00

30.00

T(s) T2(s2)

42.7
50.0
0.729

44.8
50.0
0.803

46.8
50.0
0.876

48.5
50.0
0.941

50.4
50.0
1.016

52.1
50.0
1.086

1 m T2 T2-m T

T2 ______________________________________________

2________________N/m 3 T2-m

______________________________________________

15 B abcd

L R. ad .



ad t

______________

16 i = Im sin t ( m

A ) t = T/ 12 T i = 10 m A

0.28 A n1 n2 ____

17 50g

t=0.02s 4m/s t=1.2s



J

____________HZ1min



4 10 40
18 10 B= 2 / T OO
=100 rad/s 60cm 20cm 1 2 S 120V 10min ?

19ABCD n
1 AB P AP=AD/2
1 AD 2 AD AD 20 k=400N/m A BB A B mA=mB=1kgg=10m/s2 A 5cm A B 1 A 2 A 3 AB A B

21 1m

=37 3 D L1L2

B B1T d=3.75m a ma=0.2kg Ra=3 b mb=0.1kg Rb=6 MN b b

D

M

N

a

B

L1

b

a ab g=10m/s2

sin37=0.6cos37=0.8

b ?

L2

a

a a

37

?

_________ ________ _________ ____________ _________ .........................................................................................................................................................



2012



1

2

3

4

5

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7

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9



10

11

12



131___________________ 2________________________________________

14

1___________________________________________________________________________ 2________________3_______________________________________________________ 15_________________ 16______________ 17_______________________________________________ 18

19



20 21


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