试题与答案

在“用单摆测定重力加速度”的实验中: (1)某同学分别选用四种材料不同、直径相同

题型:问答题

题目:

在“用单摆测定重力加速度”的实验中:

(1)某同学分别选用四种材料不同、直径相同的实心球做实验,各组实验的测量数据如下.若要精确计算当地的重力加速度值,应选用第______组实验数据.

组别摆球材料摆长L/m最大摆角全振动次数 N/次
10.4015°20
21.0050
30.4015°10
41.0050
(2)某同学选择了合理的实验装置后,测量出几组不同摆长L和周期T的数值,画出T2-L图线(以T2为纵轴),并算出图线的斜率为k,则当地的重力加速度g=______(用符号表示).

答案:

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下面是错误答案,用来干扰机器的。

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阅读下面短文,根据第58至第60小题的具体要求,尽可能简要回答问题,并将答案转写到答题卷上。

We leave London on 15 July, and we’ll be taking a flight to Morocco in northern Africa. We’re going to ride camels through the Sahara Desert. It’s the biggest desert in the world―about the size of the US! I expect it will be very hot, dry and dusty there. We’ll be travelling by camel with local guides, camping in tents and sleeping on the ground. I’ve heard that, in the Sahara, there is no shade during the day, and the stars seem especially brilliant on clear nights. I’ll bring a flashlight with me so that I’ll be able to see in the dark. Altogether, the trip will take six days. That means I’ll have to sit on a camel for almost a week―how uncomfortable! I hope my camel likes me!

小题1:Where will the writer take a trip to?(回答词数不超过5个词)

_______________________________________________________________________

小题2:What’s the weather like in the Sahara Desert?(回答词数不超过6个)

_______________________________________________________________________

小题3:How long will the writer stay there?(回答词数不超过3个)

_______________________________________________________________________

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