2. (Jilin Province in 2005) "Until I raised my cup, I asked the bright moon to bring me my shadow and let the three of us". One of the three "people" here is formed by the linear propagation of light.
3. (Jilin Province in 2005) Money has the saying that "dew becomes frost", but this statement is wrong, because frost is formed by water vapor in the air, not dew, and dew is a small drop of water formed by water vapor.
4. (Yichang City, Hubei Province, 2005) "Wear leather clothes in the morning, wear gauze in the afternoon, and eat watermelon around the stove." This proverb reflects that the temperature changes obviously day and night in summer in some parts of Xinjiang. The main reason is that the volume of sand is smaller than that of water.
A, heat b, density c, specific heat d, internal energy
5. (Changde City, Hunan Province, 2005) There is a folk proverb in China called "The tank wears a skirt, and it will rain", in which "the tank wears a skirt" means that a layer of dense water droplets appears on the outer surface of the tank. Regarding the formation of water droplets, the following explanation is correct ()
It is formed by the liquefaction of water vapor in the air.
B, it is formed by evaporation of water in the water tank.
C is formed by the diffusion of water molecules in the water tank.
D, there may be cracks in the water tank, and the water in the water tank seeps out of the water tank.
6. (Changde City, Hunan Province, 2005) There is a saying that river water pollution in China has become increasingly serious in recent decades. "In the 1970s, Taomi cooked; In the 1980 s, water the flowers for irrigation; In the 1990 s, fish and shrimp were unparalleled. " It is the responsibility of every citizen to improve environmental awareness and prevent environmental pollution. The following related practices are correct ()
A, using industrial wastewater to directly irrigate farmland can save water.
B, when washing clothes, use phosphorus-free washing powder with little pollution as much as possible.
C, uniformly collecting and burying the waste dry batteries.
D, recycling municipal solid waste and burning it in the suburbs.
7. (Guiyang City, Guizhou Province, 2005) "Hanshan Temple outside Gusu City, the midnight bell arrives at the passenger ship." This is a famous sentence in Tang poetry. The guests on board heard the bell of Hanshan Temple, because the big clock of Hanshan Temple was hit.
Yes
8. (Nantong City, Jiangsu Province, 2005) As the saying goes, "When the water doesn't boil, the boiling water doesn't ring". Is boiling water really silent? Xiao Ming wanted to study this and got his father's support. Xiao Ming uses a round-bottomed iron pot to boil water on the gas stove. Use thermometer and digital sound level meter (instrument for measuring sound intensity) to measure the temperature of water in the pot respectively. The intensity and measurement results of the sound beside the pan are as follows:
Water temperature℃ 2 1 40 60 70 80 85 90 95
Sound intensity decibel 37.5 38.0 40.5 43.4 46.8 52.9 54.4 55.2 52.8
Phenomenon: no bubbles, no bubbles, small bubbles, a small number of bubbles rise, bubbles increase, a large number of bubbles rise, bubbles form on the water surface, and water becomes turbid and boiling.
When the water is boiling, the pointer of the thermometer is shown in the following figure 17. Please fill in the blanks in the form and analyze the above information. We can see that the loudness is the highest when the temperature is high. Now, what's your new understanding of the sentence "When water boils, boiling water doesn't ring"?
9. (Changzhou City, Jiangsu Province, 2005) Fan Zhongyan, a writer in the Song Dynasty, wrote in his immortal masterpiece "The Story of Yueyang Tower": "The moon is a thousand miles away, illuminating people, and the still shadow sinks to the wall" ()
A, "Hao Yue" is an artificial light source B, and "Hao Yue" is a natural light source.
C. "Still shadows sink to the wall" is a virtual image formed by reflection.
D. "Static shadow sinking wall" is a virtual image formed by refraction.
10, (Suzhou City, Jiangsu Province, 2005) "On a frosty night, Jiang Feng sleeps in a fishing fire, and the bell rings at midnight at Hanshan Temple outside Gusu." From a physical point of view, the "moon setting" in the poem is
Take this as a reference. "Bell" is caused by bell.
1 1, (Jiangxi Province, 2005) Lushan Mountain is famous for its beautiful scenery. Li Bai, a poet in the Tang Dynasty, wrote in his poem Looking at Lushan Waterfall: "Rizhao incense burner is full of purple smoke. Looking at the waterfall in Qianchuan from afar, it is suspected that the Milky Way has fallen for nine days. " From a physical point of view, the misunderstanding of this poem is ()
A. The process of forming "smoke" is endothermic.
B, "smoke" is formed by liquefaction
C, the kinetic energy of "flying" water is increasing.
D, the gravitational potential energy of "flying down" water is decreasing.
12, (Jingzhou City, Hubei Province, 2005) Li Yi, a poet in the Tang Dynasty, wrote a poem entitled "Happy to see my brother goodbye", which described: "After these ten years of boredom, we meet again. We have all changed a lot. The first time I heard your last name, I thought you were a stranger. Then I heard your name, and I remembered your young face. As can be seen from "Ask the surname", there is a feature in the voice that reminds the poet of his memory ten years ago. This function is ()
A, tone b, loudness c, timbre d, amplitude
13, (Nanjing, Jiangsu Province, 2005) Poem "Holding the moon in your hand, flowers are full of skirts". ("hold" means "hold") includes physical knowledge and.
14, (Investigation in Weifang City, Shandong Province in 2005) "A person knows by hearing the voice" means that a familiar person will know who he is when he hears the voice, and the main basis for judgment is ().
A, tone b, timbre c, loudness d, frequency
15, (Investigation in Weifang City, Shandong Province in 2005) On May 23rd this year, an extremely rare mirage appeared over the beach near Penglai Pavilion. The reason for this phenomenon is ().
A, light propagates along a straight line; B, the scene is imaged through the water surface.
C diffuse reflection occurs when light passes through air with uneven density.
D. Light refracts through air with uneven density.
16. (Guilin, 2005) In the poem "Peach Blossoms Set each other off in Red", the reason why peach blossoms are red is explained by optical knowledge ().
A. Peach blossoms can glow red by themselves. B. Peach blossoms absorb red light.
C. Peach blossoms reflect red light D. None of the above statements is true.
17, (Guilin City, 2005) In the poems of poets praising Guilin's landscape in past dynasties, there is a famous poem "The peak reflects the mountains and floats, and there is no mountain and no water, so it is not lost". The "reflection" in the poem is formed by the phenomenon of light. The crystal clear Lijiang River looks shallower than it really is, which is caused by the phenomenon of light.