跪求 高中 英语物理题目（来自美国、英国原题）！！！1
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发布时间：2023-10-25 22:03
共2个回答
热心网友
时间：2024-11-16 00:39
Multiple Choice questions
1. Atoms are always neutral because they contain equal numbers of protons and electrons. If a neutral atom lost an electron, what will be the change on the remaining particle?
(A) positive
(B) negative
(C) neutral
(D) zero
2.The plate tectonic model involves the concept of zones of weakness within the Earth. Where are these zones of weakness always located?
(A) At all boundaries between crustal plates
(B) Where one crustal plate rises on top of another crutal plate
(C) In regions where mountain ranges are forming
(D) In deep oceanic trenches
3. Examine the word equation below.
sulfuric acid + sodium hydroxide （箭头）sodium sulfate + water
The reaction shown is an example of:
(A) decomposition
(B) neutralisation
(C) acid + metal
(D) corrosion
Extended Rsponse questions
1. The methods of energy transfer in sound waves compared to water waves (or light waves) are different. Compare these methods of energy transfer. Diagrams (or a table) are useful.
2. Radioactive minerals emit radiation from their nuclei. State one advantage and one disadvantage of nuclear radiation in society.
3. Define half-life (这里指radiation)
4. Scientists carried out a controlled experiment that supported the hypothesis:
Cane toads are attracted to UV light.
Design a method for a controlled experiment to test this hypothesis. Include all variables (independent/dependent/fixed) and equipment. Write your method in a sequence of steps.
全手打，science里包括生物的，带图的题我都没有打，基本没剩多少了，但是程度也就这样了，lz满意的话给点分吧。
热心网友
时间：2024-11-16 00:39
