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001探究题(黄冈市物理中考题调考题汇编)(国外英文资料)
001探究题(黄冈市物理中考题调考题汇编)
001 research questions (compilation of questions in Huanggang Physics)
(09) 36, polevaulter to fall on the thick foam mat on the ship near the Barges (d sea n) ship contact hanging buffer tires. The police to rescue personnel when the towers fall, spread over the air on the ground
(1) please give a similar example __________________________________________________.
(2) according to the above phenomenon, Xiao Ming asks a question, when an object hits other objects, is the size of the impact force relative to the phase?
The interaction of the time? You have raised the question: _________________________________________
(3) according to the proposed small problems, your guess is: _________________________________________
(4) Xiao Ming according to his guess, designed the following experimental scheme:
Stacked with different thickness of flour in the same two glass tank, from the same ________, has landed the same egg. Fall in flour thick groove, leaving deep pit, egg intact; fall in flour and smaller thickness of slot, egg rupture, here, Xiao Ming is by comparing the length of time that ________ impact. Thus, you have come to the conclusion that is _____________________________________________________________________________.
(09) 36., here are some common phenomenon: in the horizontal ground flat brick and brick are placed vertically in a stable equilibrium state, but the degree of stability of different vertical brick easily overturned, and flat brick not easily overturned; weightlifters are generally short of motorcycle luggage loading; the shelves are too high, traffic safety; laboratory scale placed in a large area on the bottom surface; three camera mounted on the support surface in large tripod.
(1) please give a similar example: ________________________________________________.
(2) according to the above phenomenon, Xiao Ming has raised a question: is the stability of the object relative to the center of gravity of the object? Will you ple
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