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
55
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] Which of the following is an example of inertia?
选项
A、A boat can stay on water.
B、A plane can fly in the air.
C、You can walk faster on a very smooth surface.
D、You can go forward and backward on a swing.
答案
D
解析
见第一段中的最后一句,因此选项D为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3326146.html
相关试题推荐
WhatactionsdoFrancisandCarolagreetodoregardingthefollowingpreparatio
WhatactionsdoFrancisandCarolagreetodoregardingthefollowingpreparatio
WhatactionsdoFrancisandCarolagreetodoregardingthefollowingpreparatio
Whichattitudeisassociatedwiththefollowingpeopleduringtheconversation?
Whichattitudeisassociatedwiththefollowingpeopleduringtheconversation?
Whichattitudeisassociatedwiththefollowingpeopleduringtheconversation?
Accordingtothespeakers,whatfunctionhastapaclothplayedinthefollowing
Accordingtothespeakers,whatfunctionhastapaclothplayedinthefollowing
Accordingtothespeakers,whatfunctionhastapaclothplayedinthefollowing
Whowilldothefollowingtasks?Writethecorrectletter,A,BorCnexttoQue
随机试题
Havingseenwhatwehaddonewhenshewasabsentfromthehouse,shegaveasati
EndtheUniversityasWeKnowIt1.ProblemsconfrontingAme
Of100billionnervecellsinthehumanbrain,howmanyformafterbirth?Fo
Thespecialeducationmentionedinthetextismainlyconcernedwith______.[br
男性,24岁。间断咳嗽、咳痰带血1个月,乏力、纳差伴尿少、水肿1周。化验尿蛋白(
(2017年真题)我国的基金会计核算细化到了()。A.季度 B.日 C
人感染高致病性禽流感潜伏期为A.1~3日 B.2~5日 C.3~7日 D.
反映肾小球滤过功能的指标A.尿钠与滤过钠排泄分数(FeNa)测定B.酚红排泄试验
关于术前呼吸道的准备,下列哪项是错误的A.指导吸烟患者术前2周停止吸烟 B.指
中度缺氧缺血性脑病的临床表现是A.出生24小时内症状最明显 B.淡漠与激惹交替
最新回复
(
0
)