Physics Unit22: Electromagnetic Waves - 51fly国际课程 (51fly.win)

手机扫一扫，访问本页面

?作业考试练习?国际高中通用物理?Physics Unit22: Electromagnetic Waves

考生身份 | 我的作答记录 | 错题本 | 搜藏集 | 帮助

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp，上传完成后会在上方生成预览，用鼠标连续双击缩略图，或拖动缩略图，该图片就被绑定至本题，显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片，绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别

习题练习：Physics Unit22: Electromagnetic Waves

本习题练习来源于51fly国际课程 (https://51fly.win)，是在线习题练习的打印版，您也可以访问本平台网站(https://51fly.win/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 82 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://51fly.win/test82.html
作者: physics 总分: 35分得分: _____________

答题人: 匿名未登录开始时间: 22年08月28日 10:07 切换到: 整卷模式

1#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The basic equations for all elect/c puf3;af y1bromagnetism were developed by

A. Newton.

B. Gauss.

C. Maxwell.

D. Hertz.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

An electric field is pywsp, ig,s j 9f4wj:)v,s/aixwinx+ 0roduced by a

A. constant magnetic field.

B. changing magnetic field.

C. either a constant or a changing magnetic field.

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A changing electric field will producev0 vw)vwtoozy* wx-qih /r8,9 a

A. current.

B. gravitational field.

C. magnetic field.

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

All electromagnetic waves travel through a vacuum atxt9;eji tgei4xf656 )mfm9 sj

A. the same speed.

B. speeds that are proportional to their frequency.

C. speeds that are inversely proportional to their frequency.

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a vacuum, the velocir /h-belv2* ldty of all electromagnetic waves

A. is zero.

B. is nearly $3 \times 10^{8} \; m/s$.

C. depends on the frequency.

D. depends on their amplitude.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Electromagnetic waves can travel thr fz.)o*u3 onlqough

A. glass.

B. iron.

C. water.

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The strength of both the electrica 8e2mi3 nkkck: */rjf and magnetic fields in the radiation field are in mra/k2kck*83f:ej found to decrease with distance as

A. $1/r$

B. $1/r^2$

C. $1/r^3$

D. $1/r^4$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The $E$ and $B$ fields in electromagnetic waves are oriented

A. parallel to the wave's direction of travel, as well as to each other.

B. parallel to the waves direction of travel, and perpendicular to each other.

C. perpendicular to the wave's direction of travel, and parallel to each other.

D. perpendicular to the wave's direction of travel, and also to each other.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

An electromagnetic wave is tj 3s.zufsr5 a1raveling to the east. At one instant at a given point irau31fj.z5ss ts $E$ vector points straight up. What is the direction of its $B$ vector?

A. north

B. down

C. east

D. south

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

An electromagnetic wave is radiated by a straight wire antenna that is oe *dqpf9qxr2 (riented vertically. What should be the orientation of a straight wire receivi9* xqdrpqe(2fng antenna? It should be placed

A. vertically.

B. horizontally and in a direction parallel to the wave's direction of motion.

C. horizontally and in a direction perpendicular to the wave's direction of motion.

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Electromagnetic wavez,cn:ag1l 2x; :uuvuus are

A. longitudinal.

B. transverse.

C. both longitudinal and transverse.

D. neither longitudinal or transverse.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Of the following, which is not electromagnz)q7f7klhrkkqf1+ 2m 4deb t3etic in nature?

A. microwaves

B. gamma rays

C. sound waves

D. radio waves

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Visible light ranges in wavk 7obesqf 5mvbzaoenp83.+ :1elength from

A. 400 mm to 750 mm.

B. 400 nm to 750 nm.

C. 500 mm to 850 mm.

D. 500 nm to 850 nm.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The energy an electromx6fpqw-rcjd x3 n(/ohe ytxy.u 9*q43agnetic wave transports per unit time per unit area is theencfhx4*xy -/xw(3p36 tyoq. q rdu j9

A. energy density.

B. power.

C. intensity.

D. radiation pressure.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The force per unit area exerted by an electromagneti/n 9p0.zoxt)6vb7chq r byy 1ac wave is called the

A. energy density.

B. power.

C. intensity.

D. radiation pressure.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which of the following correctly lists electromagnek8n l4lik5cs 6 3bq(mutic waves in order from longest to shortest wavelk6n8mk sq l(3iu4lc b5ength?

A. gamma rays, ultraviolet, infrared, microwaves

B. microwaves, ultraviolet, visible light, gamma rays

C. radio waves, infrared, gamma rays, ultraviolet

D. television, infrared, visible light, X-rays

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

If the electric field in an EM wave has a peak value of 2.0 V/m, what is tk,c8e7y4f,43udi ema1nx b huhe peak vne h4 m7u 3x4 daekc,18ufy,bialue of the magnetic field?

A. $6.7 \; nT$

B. $2.0 \; T$

C. $3.0 \times 10^{8} \; T$

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the wavelengthz;lc8h ffn(f,n*e d g8o 1q(s)8nt rvr of light waves if their frequency is $5.0 \times 10^{14} \; Hz$?

A. $0.60 \; m$

B. $6.0 \; mm$

C. $0.060 \; mm$

D. $0.60 \; mm$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

19#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the wavelength of a 92.9-MHz radio wave?y7eu22lacm )u ji 59mo

A. $32 \; mm$

B. $32 \; cm$

C. $3.2 \; m$

D. $32 \; m$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

20#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the wavelength of a radio wave signalq c)sjd6lt;)8y3oyau transmitted at a frequency of 7.2 MHz?sj a6y ;d)tylu)coq38

A. $42 \; m$

B. $4.2 \; m$

C. $29 \; m$

D. $0.024 \; m$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

21#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the wavelength for the carri*lm* /egc/arzha,9 iler wave in the station WBRN 1460?

A. $2.05 \; m$

B. $20.5 \; m$

C. $205 \; m$

D. $2.05 \; km$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

22#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the frequency of 20 mmrh ov0i;ork94edgv16,i 1 hsb microwaves?

A. $100 \; MHz$

B. $400 \; MHz$

C. $15 \; GHz$

D. $73 \; GHz$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

23#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

How far does light trave,nfwu (,0jlt)g:w k kol in 1.0 ms?

A. $3.0 \times 10^{14} \; m$

B. $0.30 \; km$

C. $3.0 \; m$

D. $30 \; cm$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

24#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

How long does it take light to trav o;e7 kqya:,i6vhut v:el 1.0 m?

A. $3.3 \; ns$

B. $3.3 \; ms$

C. $3.3 \; ms$

D. $3.3 \; s$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

25#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

How long does it take the signal from a local radio station to travivs4n *.by i*oel 20 miles?

A. $2.8 \; s$

B. $108 \; ms$

C. $38 \; ms$

D. $108 \; ms$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

26#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

How far is a light year (the distance ligty0t-: 5k4 vdflbhem ;n;ue:zht travels in a year)?

A. $186,000 \; m$

B. $3.0 \times 10^{8} \; m$

C. $8.7 \times 10^{13} \; m$

D. $9.5 \times 10^{15} \; m$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

27#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A radar receiver indicates that a transmitted pulse o)u9ee/js6ta return as an echo in 20 ms after transmission. How fuo jsta9e/6e )ar away is the reflecting object?

A. $1.5 \; km$

B. $3.0 \; km$

C. $6.0 \; km$

D. $9.0 \; km$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

28#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Radiation from the Sun reaches the Earth (above the atmosphere) at a rate of fdi9 a5fyno ,(about (a n9fdy ,5fio$1350 \; W/m^{2}$. Assume that this is a single EM wave and calculate the maximum value of the electric field.

A. 0.71 kV/m

B. 1.0 kV/m

C. 1.4 kV/m

D. 2.0 kV/m

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

29#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Radiation from the Sun reac( kkek *tndmjb22 x*,mhes the Earth (above the atmosphere) at a rate of aboumdn bekkmx 2(*jk*2,t t $1350 \; W/m^{2}$. Assume that this is a single EM wave and calculate the maximum value of the magnetic field.

A. $6.7 \; mT$

B. $4.8 \; mT$

C. $3.4 \; mT$

D. $2.4 \; mT$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

30#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the maximum value of the electric field at a dista.uo 7ulc) d6tb zdag (1;zi 6khfe,v+znce 2.5 m from a 100-W light.h bi1aou,cz;kz (ufvd t7 )zl6deg+6 bulb?

A. 22 V/m

B. 31 V/m

C. 44 V/m

D. 62 V/m

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

31#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the maximum value of the magnetic field at a distancly2jhjej6z*i/ vl 4fl 1uuh 92e 2.5 m from a 100-W light bulbh/ lz* 6e9 jlyv ui24f1jujl2h?

A. $0.20 \; mT$

B. $0.14 \; mT$

C. $0.10 \; mT$

D. $0.071 \; mT$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

32#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A 15.0-mW laser puts out a narrow beam 2.00 qj5mtt. 2 z6jsj s0ow+mm in diameter. What is the average (rms) vam2tsjsj5.tw o0z6qj+lue of the electric field?

A. 0.95 kV/m

B. 1.3 kV/m

C. 1.9 kV/m

D. 2.7 kV/m

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

33#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A 15.0-mW laser puts out a narrow beam 2.00 mm in diameter. What is the h k6q3:8o+uz/.:e jegejto0rh h7iz n average (rms) oi:ehht0 8: 3+z/r z.oe ejgqk6hun7j value of the magnetic field?

A. $4.5 \; mT$

B. $6.4 \; mT$

C. $9.0 \; mT$

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

34#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

How much energy is tt5.-lsf gx ,(ea cvn,hransported across a $1.00 \; cm^{2}$ area per hour by an EM wave whose electric field has an rms strength of 21.5 V/m?

A. $0.44 \; nJ$

B. $0.44 \; mJ$

C. $0.44 \; mJ$

D. $0.44 \; J$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

35#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Estimate the average power output ofjcf4h jf6xnegn. s/4:cr6wm( the Sun, given that about $1350 \; W/m^{2}$ reaches the upper atmosphere of the Earth. The distance from the Sun to the Earth is $1.5 \times 10^{11} \; m$.

A. $1 \times 10^{26} \; W$

B. $2 \times 10^{26} \; W$

C. $3 \times 10^{26} \; W$

D. $4 \times 10^{26} \; W$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

:

总分:35分及格:21分时间:不限时

未答题:

已答题:0

答错题:

当前第题，此次习题练习共有 35 道题

试卷内容到此结束! © 2024 51fly国际课程 (https://51fly.win)版权所有

浏览记录|使用帮助|手机版|51fly国际课程 (https://51fly.win)

GMT+8, 2025-5-7 18:35 , Processed in 0.366039 second(s), 104 queries , Redis On.

返回顶部