Gravity and Planetary Motion - 无忧得胜-网上国际课程 (5edu.win)

?作业考试练习?美国物理杯赛(Physics Bowl)?Gravity and Planetary Motion

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：Gravity and Planetary Motion

本习题练习试卷来源于无忧得胜-网上国际课程 (https://5edu.win)，为试卷打印版，您也可以在网站平台(https://autodiscover.5edu.win/)直接访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 518，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://autodiscover.5edu.win/test518.html 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。
作者: admin 发布日期: 2025-09-14 23:04 总分: 22分得分: _____________

答题人: 游客未登录开始时间: 24年08月17日 16:00 切换到: 整卷模式

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

08.19: Kepler’s Second Law about “sweeping owdz ;smulw.(5 7t s4qaut equal areas in equal time” can be derived most directl u7(l4wd5 . wzs;qtsamy from which conservation law?

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

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

16.17:“All planets in the solar system follow ell4pr z*s c zej -vstl86ke6 zb7rm)hy:,iptical orbits with the Sun located at one focus of the ellipse.” This statement is best summarized by which one *r mlysjsvb8, z h 6:zpz7tc-k6e e4r)of the following choices?

A. Kepler’s First Law

B. Kepler’s Second Law

C. Newton’s Universal Law of Gravitation

D. Einstein’s Law of Gravity

E. Schwarzchild’s Law of Orbits

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

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

99.21: What happens to the force oaad-)1s egqffo.fi-x5jap0 + f gravitational attraction between two small objects if the mass of each object is doubled and the distance between their centers is do 5ap-efi)xq 10o.f+-djagf asubled?

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

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

95.09 Two spherical bodies attract eh(rz y55 xvompm125aw ach other with a gravitational force of 4.0 N. What will be the force if the di v pr25maz1x5(y hwm5ostance between them is doubled?

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

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.27: Two spherical, non-rotating pi9cqkih:7j6fh g5wjyve6 33x 9xet*glanets, X andY, have the same uniform density. Planet X has twice the ra hqt :g*x9 5k v 6f6yei9hwc7ge3i3jxjdius of Planet Y. Let $g_x$ and $g_y$ represent the accelerations due to gravity at the surfaces of Planet X and Planet Y, respectively. What is the ratio of $g_x:g_y$?

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

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

16.46 Two spherical, non-rotating planets, X and Y, have the xin34 0m uzpyt:jbx k:w,*xu1;kk9 qh same uniform density. 4 *j: hk0:1wxk;u ny zuqkmb,9i3xxptPlanet X has twice the radius of Planet Y. Let $v_x$ and $v_y$ represent the escape speed at the surfaces of Planet X and Planet Y, respectively. What is the ratio of $v_x:v_y$?

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

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.16: The mass of a planet can be calculate4:e3xdq 4huizcv-. i xd if it is orbited by a small satellite by setting the gravitational force on the satellite equal to the centripetal force on the satellite. Which of the following would NOT be required iiq3xu e 4.hd:ci -4xvzn this calculation?

A. the mass of the satellite

B. the radius of the satellite's orbit

C. the period of the satellite's orbit

D. Newton's universal gravitational constant

E. all of the above are required for this calculation

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

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

99.11: Assume that the Earth attracts John Glenn with a m4ugp ,w.f8ce-az.sq,bx la(gravitational force F at th,e,.c4uamlsa wxz -8pq(g bf .e surface of the Earth. When he made his famous second flight in orbit, the gravitational force on John Glenn while he was in orbit was closest to which of the following?

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

标记此题

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.30: Considering only the Moon-Earth system (ignore an8 4/2w klayzo x4 m;ehp1aaap1y influence of the Sun), which one of the following best expresses the magnitude of thehzaap4 1kpyaal1 m4 o8ex;w/2 Moon’s acceleration about the Earth?

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

标记此题

10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

02.19: As a rocket blasts awao((jv)t d d)kcnmg1 7a8c(d day from the earth with a cargo for the international space station, which of the following graphs would best 1do a vd7(cn)8ag ((k)m tcdjdrepresent the gravitational force on the cargo versus distance from the surface of the Earth?

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

标记此题

11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

99.33: One object at the surface of txv ry5kb ol3x64bksr*)- hh9 che Moon experiences the same gravitational force as a second object at the surface of the Earth. Which of the following would be a reasonable conclusionc )b brvrkxkxo-l* 9s534hy6h ?

A. both objects would fall at the same acceleration

B. the object on the Moon has the greater mass

C. the object on the Earth has the greater mass

D. both objects have identical masses

E. the object on Earth has a greater mass but the Earth has a greater rate of rotation.

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

标记此题

12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

00.24 Consider an object that has a mass, m, ai78wkk qi5un5 4zh,k znd a weight, W, at the surface of the moon. If we assume the moon has a nearly uniform density i 5u84,kznk wqh7kz5i, which of the following would be closest to the object’s mass and weight at a distance halfway between Moon’s center and its surface?

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

标记此题

13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

96.23: A hypothetical planet has seven ti 1nbyja-hfw/hd 5* 5 vjze5y8qmes the mass of Earth and twice the radius of Earth. The magnitude of the gravitational acceleration at the surface of this planet 5f j-qhy w 85 v5hyzna1bed*/jis most nearly:

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

标记此题

14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

98.24: A planet has a radiunjm(5szfg,k)f8ds: , a e4d4qr)yosus one-half that of Earth and a mass one-fifth the Earth’s mass. The gravitational acceleration at fr) nz4j 5seas) 4y :kq os,d(g8mfud,the surface of the planet is most nearly

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

标记此题

15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

08.38: Akg 1200 satellite orbits Planet X in a circular orbit with a consta( uo q*rh-*tckbi3n (ant speed of 5,000m/s. The radius of orbit is 7,500,000 m. What is the magnitude of the gravo*-rk h cit bq(*(na3uitational force exerted on the satellite by Planet X?

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

标记此题

16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

94.34: A hypothetical planet orbits a star with mass one-half the mass of /(0*rhtw2 wq l rdns( 8vf0gpnour sun. The planet’s orbital radius is the same as the Earth’s. Approximately how many Earth years does it take for the planet to complete one orbfwg/nqs 8(d*vtl r(0rpn0wh 2it?

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

标记此题

17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

97.12: Two artificial sa9x9yofiov rkl.12* yy tellites, 1 and 2, are put into circular orbit at the same altitude above Earth’s surface. The mass of satellite 2 is twice the mas y.2x1ol fviy*9ko9yrs of satellite 1. If the period of satellite 1 is T, what is the period of satellite 2?

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

标记此题

18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.22 Satellite 1 makes a circular orbit aroundn;79 iwrosasb4:y d-x the Earth with a radius $r_1= R$. Satellite 2 makes a circular orbit around the Earth with a radius $r_2= 2R$. We let v represent the speed of a satellite and a represent the magnitude of a satellite’s acceleration. Which one of the following choices gives the correct relation between the speeds and accelerations of the satellites?

A. $v_2=\frac{1}{\sqrt{2}}v_1,a_2=\frac{1}{4}a_1$

B. $v_2=\frac{1}{2}v_1,a_2=\frac{1}{4}a_1$

C. $v_2=\frac{1}{\sqrt{2}}v_1,a_2=\frac{1}{2}a_1$

D. $v_2=\frac{1}{2}v_1,a_2=\frac{1}{2}a_1$

E. $v_2=v_1,a_2=\frac{1}{2}a_1$

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

标记此题

19#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

98.33: In the following problem, the word “weigh*f ;6 :ijezp 54nd..kghxn wv)zp1pth t” refers to the force a scale registers. If the Earth wezn nd hhx.1fp i:p zkpew4jg6tv .;*5)re to stop rotating, but not change shape,

A. the weight of an object at the equator would increase.

B. the weight of an object at the equator would decrease.

C. the weight of an object at the north pole would increase.

D. the weight of an object at the north pole would decrease.

E. all objects on Earth would become weightless.

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

标记此题

20#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

10.42: A comet moves in an elliptical orbit around the sun. As the 0a,nzy, cl5wt comet moves from aphelion (the point on the orbit farthest from the sun) to perihelion (the point on the orbit closest to the sun), which of the following results ac,y0zt, 5nwl is true?

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

标记此题

21#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

17.48: In the binary star system shookjjnug1bv7 mus.jy ;wrk)1h /4b-* bwn, the two stars follow circular orbits about the system’s center of mass. The stars are separated by a distance D that is large compared to 71./on-uwb)jhb4s;r jgv b*u1 ykkmjtheir size and are subject only to their mutual gravitational attraction. The orbital period of the star of mass M is T. Which one of the following choices represents the total mass of the binary star system?

A. $\frac{π^{2}D^{3}}{5GT^{2}}$

B. $\frac{4π^{2}D^{3}}{5GT^{2}}$

C. $\frac{4π^{2}D^{3}}{GT^{2}}$

D. $\frac{16π^{2}D^{3}}{5GT^{2}}$

E. $\frac{25π^{2}D^{3}}{4GT^{2}}$

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

标记此题

22#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

06.50: A rocket is in a circueips1 ry+t7etqo3 +,xx 6a5bjlar orbit with speed vand orbital radius R around a heavy stationary mass. An external impulse is quickly applied to the rocket directly opposite to the velocity and the rocket’s speed is slowed to v/2, putting the rocket into ot5re1qj7as6 i,b+pt3xy+x ean elliptical orbit. In terms of R, the size of the semi-major axis a of this new elliptical orbit is

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

本习题练习题目来源于无忧得胜-网上国际课程 (https://5edu.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

姓名:游客(未登录)

总分:22分及格:13.2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 22 道题

浏览记录|手机版试卷|使用帮助|手机版|无忧得胜-网上国际课程 (https://5edu.win)

GMT+8, 2026-1-26 17:25 , Processed in 0.179729 second(s), 74 queries , Redis On.

返回顶部

账号		自动登录	找回密码
密码			立即注册

网页聊天 (离线可收发)

加微信咨询 (申请一对一课程辅导，加本站学习交流群）

电话咨询：

联系管理员：

查看帮助：

未使用图片

本次作答已使用