广东省中考物理复习专题检测试题专题六综合能力题

____________

____________________________________.________________________________________________________________________________________________________________________________________________.________________________________________________________________________.LED

LED

LED

bde

LED

___________________________________________________________________________________________________________________________________________________________________________________.

LED

________W.________(

______________________________ ________________________________________________________________________________ AB./

/

m

________________

)________________________________________________________________________________

________________________________________

r

r

).//

.________________A B

______A B ________( ________________________________________________________________________________________________________________________________________________.

________

________(

________

________(

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泄漏时能及时察觉到．人能闻到这种气味，说明分子在永不停息地______________________________(________

.

m____________J

______________________________________________________________________________________________

________________

.________(______________________________________.________________________________________________________________________________________________________________________________________________.

km/h __________________

km/h

km/h________________________

km/h______________________________

________(

m

________________________________________________________________________________________________________________________________________________.

________

________________________________________________________________________________________________________________________________________________. ________________________________________________________________________________________________________________________________________________.

________________________

____________________

______________________________________.

________________________________________________________________________________________

/m /m /m /m

_____________________________________________________________________.

________________________________________________________________________

__________ /N ________________________________________________________________________________________________________________________________________________.________________________________________________________________________________________________________________________________________________________________________________________________________________________.____________(

m

m

h/cm

/m

_____________________