首页
登录
职称英语
If you left your book on the table overnight, you would find the following m
If you left your book on the table overnight, you would find the following m
游客
2024-01-02
4
管理
问题
If you left your book on the table overnight, you would find the following morning that it was still exactly where you had left it, provided nobody had moved it. If a ball is made to roll on a very smooth surface, it will roll a long distance unless something stops it or changes its direction. This tendency of an object to remain at rest unless something moves it and to continue moving unless something stops it is known as the Law of Inertia.
The following examples show the truth of this law.
(a) Put a table-cloth on a table and arrange a pile of books on it. Hold one edge of the table-cloth and pull it quickly. The table-cloth will come off, leaving the pile of books undisturbed.
(b) Place a small piece of cardboard on an open jar and place a coin on it directly over its mouth. Use one finger to flick the piece of cardboard away. You will notice that the coin drops into the jar.
(c) Sitting in a car which starts suddenly, you feel you are jerked backwards. In fact, you are not jerked backwards. Your lower half, which is in contact with the cushion, is forced to move forward with the car, and the upper part of your body, which remained at rest, is left behind. [br] In the second example, when the cardboard is flicked away, the coin will ______
选项
A、drop into the jar
B、cover the mouth
C、stay on the cupboard
D、move into your hand
答案
A
解析
见第二段(b)中的最后一句:You will notice that the coin drops into the jar.
转载请注明原文地址:https://www.tihaiku.com/zcyy/3326144.html
相关试题推荐
WhatactionsdoFrancisandCarolagreetodoregardingthefollowingpreparatio
WhatactionsdoFrancisandCarolagreetodoregardingthefollowingpreparatio
Whichattitudeisassociatedwiththefollowingpeopleduringtheconversation?
Whichattitudeisassociatedwiththefollowingpeopleduringtheconversation?
ChooseTWOletters,A-E.WhichTWOofthefollowingpointsdoesthetutorwarns
Accordingtothespeakers,whatfunctionhastapaclothplayedinthefollowing
Accordingtothespeakers,whatfunctionhastapaclothplayedinthefollowing
Accordingtothespeakers,whatfunctionhastapaclothplayedinthefollowing
Whowilldothefollowingtasks?Writethecorrectletter,A,BorCnexttoQue
Whowilldothefollowingtasks?Writethecorrectletter,A,BorCnexttoQue
随机试题
ThefertilelandoftheNiledeltaisbeingerodedalongEgypt’sMediterrane
Aroundtheworld,thereareanumberofdifferenttraditionsthatformpart
HowtoSucceedinYourLiteratureClassCollegeliteratu
Itneverrainsbutitpours.Justasbossesandboardshavefinallysorted
吊顶内不应安装哪种管道?( )A.采暖通风管道 B.强电弱电管线 C.给水
葛天氏部落的乐舞主要体现在()。A.《云门》 B.《咸池》 C.《吕氏
通过对蓄电池组中的单体蓄电池进行内阻测试,能够准确地掌握蓄电池组中得每个单体蓄电
民用机场道面水泥不宜选用( )。A.矿渣硅酸盐水泥 B.快硬早强型水泥
抗病毒治疗用利巴韦林,应在流行性出血热哪一期使用最有效A.少尿期 B.发热后期
关于胎膜早破患者阴道流液的pH说法正确的是A.pH4.5 B.pH4.5~5.
最新回复
(
0
)