2007CAP Prize Exam加拿大高中物理大獎賽真題答案下載

歷年CAP High School Prize Exam加拿大高中物理大獎賽

真題與答案下載

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2007 CAP Prize Exam完整版真題免費(fèi)下載

共計(jì)3小時(shí)考試時(shí)間

此套試卷由三部分組成

20道選擇題

5道帶繪圖簡答題

以及3道開放性簡答題組成

每道大題含有不同數(shù)量的小題

請點(diǎn)擊訪問下方鏈接進(jìn)入下載頁面

2007 CAP Prize Exam完整版真題

2007CAP Prize Exam加拿大物理奧林匹克完整版答案免費(fèi)下載

部分真題答案預(yù)覽：

Part A選擇題部分：

1. C
2. D
3. B
4. B
5. B

Part B簡答題部分

Solution to Problem 21：

The material of both balls is an insulator. Therefore, charges cannot travel inside the balls. However, the electric field of the charged ball induces the?polarization of molecules in the neutral ball and the neutral ball may be treated as a dipole. However, the electric field of the dipole is weaker than the field between the charged ball and the negative “end” of the neutral ball. Therefore, the field lines everywhere have the horizontal component from the charged ball to the neutral ball. The position of the balls and their threads does not change relatively to the initial one, as the balls attract each other.

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