问题 实验题

在用打点计时器“研究匀变速直线运动”的实验中,如图所示的是一次记录小车运动情况的纸带,图中A、B、C、D、E为相邻的计数点,而相邻计数点间还有四个点未画出。

(1)(2分)根据           可以判定小车做匀加速运动。

(2)(2分)根据运动学有关公式可求得vB=1.38m/s,vC     m/s,vD=3.90m/s。

(3)(4分)利用求得的数值在右边坐标系中作出小车的v-t图线(以打A点时开始记时),并根据图线求出小车运动的加速度a=     m/s2

(4)(2分)将图线延长与纵轴相交,交点的纵坐标是0.12m/s,则此速度的物理意义是        

答案

(1)(2分)相邻相等时间间隔内的位移差相等

(2)(2分)vC==m/s=2.64m/s

(3)(4分)图略;加速度a=12.6m/s2

(4)(2分)此速度的物理意义是打点计时器打下计时点A时纸带对应的速度

阅读理解

Summer Holiday Fun 2010 !

The summer holidays are upon us again. Here is our guide to summer holiday fun in Peterborough!

Peterborough Museum

The Age of the Dinosaurs is the museum’s main attraction this summer. Get up close to prehistoric creatures via some great hands—on exhibits! Watch out for monsters lurking around every ember! The museum is open from 10: 00am to 5: 00pm Monday to Saturday, and from 12: 00pm to 4: 00 pm on Sundays in August.

Call 01733 864663 for details

Saxon Youth Club

School holiday fun: Young people aged 13-19 will be able to produce their own music, compete in spots activities, or try their hand at cooking at Saxon Youth Club,Saxon Community Centre, Norman Road. Peterborough every Monday and Wednesday from 3: 00pm. Moreover, an aero ball tournament will take place on Thursday 12th August between 3: 30pm and 6: 30pm.

Call 0135 3720274 for details

Houghton Mill   

Alice through the Looking Class—a new production of the family favorite on Monday 30th August. Bring rugs or chairs to sit on and a picnic if you wish to eat during the play. Gates open 5: 30pm, performance 6: 30pm—8: 30pm. Tea room will be open until end of the interval. Adult £10. Child£7. Family £20.

Booking advisable on 0845 4505157.

Farmland Museum and Denny Abbey

Farmland Games: From Wellie Wading to Pretend Ploughing matches, come and join the Farmland Team. Collect your sporting stickers and create a colorful rosette that is fit for a winner!No need to book, just turn up between 12: 00pm and 4: 00pm on Thursday 19th August. Suitable for children aged four and above, each child should be accompanied by an adult and all activities are included in the normal admission price Tickets Cost£7 per child.

For further information, call 01223 810080. 

53. If you are interested in cooking, you can go to______.

A. Peterborough Museum                    B. Houghton Mill

C. Saxon Youth Club                           D. Farmland Museum

54. You want to watch the new play with your parents, so it will cost you______.

A. £7          B. £17               C. £27                      D. £20

55. Which of the following activities needs parents’ company?

A. Playing farmland games               B. Watching a new play.

C. Competing in spots activities.         D. Visiting the dinosaur exhibition.

56. If Tom comes to Peterborough for amusement on August 19, he will have ______activities to choose from for himself.

A. one activity    B. two activities        C. three activities   D. four activities

单项选择题