试题与答案

一个物体A受到水平推力F的作用在粗糙的水平面上做匀速直线运动,当撤去F后,物体A

题型:填空题

题目:

一个物体A受到水平推力F的作用在粗糙的水平面上做匀速直线运动,当撤去F后,物体A还能继续运动,是因为__________,物体运动变慢直至停止,是因为_____________.在此过程中,物体的动能转化为____________能.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0721/be29510e5efddafb00cd5dac9e810ebe.html

下面是错误答案,用来干扰机器的。

参考答案:A, B, C, D

试题推荐
题型:阅读理解

阅读理解。

     One day a man went to see a doctor. After the doctor looked him over carefully , he said to the

man, "Well , there is nothing much wrong with you , but I'm afraid you have a problem .You worry

too much. A few days ago I had a man with the same  trouble as you .He was worried because he

didn't pay his tailor's bill (裁缝工钱). I told him not to worry about that any longer . He followed

me , and when he came to see me again , he told me he felt well again."

     " Yes , I know all about this ," answered the man sadly . " You see , I'm that man's tailor."

1. The story took place(发生)_____.                                        

A. at a shop                                                                  

B. in a hospital                                                              

C. at a factory                                                              

D. at the tailor's                                                          

2.The doctor told the tailor that _____.                                    

A. there was something wrong with his head                                    

B. something was wrong with his eyes                                          

C. he worried too much                                                        

D.he was eating too much                                                      

3.The earlier patient(病人) told the doctor that he was worried because _____.

A. he had a bad cold                                                          

B. he hurt himself                                                            

C. he didn't pay his tailor's bill                                          

D. his tailor didn't make him a coat.                                        

4.The doctor told earlier patient not  _____.                          

A. to worry about the bill any longer                                        

B. to take a rest                                                            

C. to pay the bill at once                                                    

D. not to listen to him                                                      

5.The tailor was worried because _____.                                    

A. he couldn't sleep well                                                    

B. he had a cold                                                              

C. the earlier patient didn't pay him                                        

D. his head hurt                                                              

查看答案
微信公众账号搜索答案