试题与答案

在测量某一定值电阻Rx阻值的实验中,由于张楠同学的疏忽,做完实验后他才发现把测量

题型:问答题

题目:

在测量某一定值电阻Rx阻值的实验中,由于张楠同学的疏忽,做完实验后他才发现把测量的电流值都写在草稿纸上而忘记填入记录表格中.

实验次数12345
电压U/V0.51.01.52.02.5
电流I/A
(1)请你帮助张楠同学把记录在草稿纸上的电流值对应填入表格中,你所依据的物理规律是______.

(2)根据测量数据计算该定值电阻的阻值为______Ω(小数点后保留一位数字).

答案:

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题型:阅读理解

Successful athletes today are able to earn enormous salaries and many of them choose to share the wealth they have by donating to charities.

Perhaps the generosity displayed by these athletes will inspire others to join them in helping the less fortunate.

小题1:What do we know from the passage?

A.Donating to charities is common among famous athletes.

B.All the athletes mentioned in this passage are famous basketball players.

C.Some athletes mentioned in this passage will donate all their money in future.

D.Successful athletes will be scolded if they don’t donate their money to people in need.小题2:Who has a foundation that is named after him/ her?

A.Ron Artest.

B.Steve Nash.

C.Tiger Woods.

D.Hannah Teter.小题3:How many athletes mentioned by the author mainly help the school children?

A.Two.

B.Three.

C.Four.

D.Five.小题4:This passage was written in order to___________.

A.tell us the successful athletes are generous

B.tell us there are a lot of charities in the US

C.inspire more and more people to help the needy

D.praise the successful athletes for their good deeds

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