物理习题(Physics Exercises).doc
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物理习题(Physics Exercises)
Second day physics teaching experiment version of the light dispersion, invisible light synchronization exercises
Dispersion of light
1., three kinds of colored light mixed to produce all kinds of light, the three colors called. Xiaohua to draw the picture of his riotous with colour palette, at least,,
Three colors. This shows that the mixing of color light and color mixing is true (fill in the same or different ).
2. through blue transparent glass, the following observation, the result is ()
A. observe yellow objects and appear green
B. looks at the white object and assumes blue
C. observed red objects, showing red
D. observe that any color object appears blue
3. Xiaohua want to know what color appears red green and blue 22 primary colors mixed after this? Please help him design the inquiry process and ask to write it out:
Materials needed:
Experiment process:
Experimental phenomena:
4. reading materials:
Why did the gardener fail?
A love of gardening, found that most plant leaves were green, like green plants may be the reason, so he will be the greenhouse roof and around the installation of green glass, just let the green plants in sunlight irradiation. He thought it would make the plant grow faster and yield more, but the gardener failed. Because the opaque body color is determined by its light reflection, the leaves are green, plant reflection is green, it means that it is not like the green plants, only to plant as green plants will lack of other colors are required and slow growth, even withered.
(1) does the plant really like green? Please analyze: what color does the red flower reflect?
(2) what is the color of the transparent body?
Invisible light
1. the light outside the red end of the spectrum is called the light outside the violet end.
2. the following phenomena belong to the application of infrared or ultraviolet light, or related to them, please classify:
A night vision apparatus, a remote controller, a sun umbrella, and a long
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