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重梳理、抓落实、切实提高复习效果 —— 高考物理复习之我见 PowerPoint PPT Presentation


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重梳理、抓落实、切实提高复习效果 —— 高考物理复习之我见. 主讲人:交通大学附属中学 王铁桦. 一、学生在高考复习中普遍存的问题. 问题一:忽视基础知识和基本技能的掌握. 问题二:重结论的记忆,轻物理过程与方法的理解. 问题三:埋头做习题,忽视物理知识与生活、社会 和科技的联系. 问题四:重理论计算,轻实验操作. 一、学生在高考复习中普遍存的问题. 问题一:忽视基础知识和基本技能的掌握.

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重梳理、抓落实、切实提高复习效果 —— 高考物理复习之我见

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5157091


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80


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200311

.. Mr

EG= G.


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200220

g MmM / m = 81RRR/ R= 3.6rRr / R= 60. g

: ..


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200322

h = 0.2 mA

= 30

v0 = 5 m/s.A, g = 10 m/s2.

t ..


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v0


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2006200.696,0.561

2010

V140 m/sV220 m/s

t1 = = t2 = = t= t1+t2


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s

s

s

m

vm=36(m/s)

(s)

218m

218m

t1vmt2v2s218m


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200313, . 271105 Pa6104 Pa. -13________Pa12 m, 133 Pa. 1105 Pa________m


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200214PS

A B C D


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2007150.860.38

1.5V1mA0-9999aK2K1I11.00mAK1K2I10.80mA____________

b

K1K2IK2K1____________R0Rx___________


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1

766


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ass0(s0)t0v?a=1.0m/s2, s=30m, s0=20m, t0=4.0sv


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1

22M10.350km/h25m8m1m


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1

2ao


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a1a2B


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:m1m2m1<m2

Rm

am1m2H


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200650.3870.419

r2rOm OF F=mg=m F=


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2007160.394,0.530

aER1R2R3A V

1PabAR1R2__________________

2R16R212r6PabEPRbR3

A2B4 C6D8


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200323

A=0.04m2L = 0.05mU = 2500 V. 10 13q = +1.010 -17 Cm = 2.010 15 kg, .

1

2

3


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200622 0.410.74

2214amRbBf

1v2

2v1

3Q


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1

2

=

3

v0=2v1


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2

h=150V=6.03

mKgv0


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13min32.7km151 km808000/266

1

220km/h15min


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1 151

266


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21/41/2

4000/

15x


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3

(a)(b)

1

2(a)


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4

6m/s8m/s9m/s5m1m/s2?


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.FS=0.03m2,S=4S=0.20m2=1.00103kg/m3

p0=1.00105paH=9.00mW1W2g=10m/s2


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BCADPCBACCB37PQm ABHF

1PQ

2Q


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dp0

(a)vhP

(b)1/4 P


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A

B

O

OHaABABAB60AhhAB


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  • v t0 t t t0 c


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Dt/2

Dt

0

cDt/2

L0

L0

vDt/2

  • t >t0


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[email protected]


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rvSCDCDRR = rvd/hrvdhR<<1CDR-1R ~ 103105CDR 10g30cmh = 1.810-5Ns/m2r = 1.29kg/m3


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v ~ 0.5m/s

R = rvd/hR ~ 105

CD = 243/16 = 9/2


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200221

R1

r1

r2

R2

1fFTfs

2R120R2334824

3R1


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DIS

3/

1

2


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1.0m1.010-4m2ABAbAxFFAxx0.11.2 m


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x0.6mF0.24N

x0.6m

x1.0m


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