Gravity and Planetary Motion - 题库网 (tiku.one)

1#

08.19: Kepler’s Seconda0bzb0v/rlk5f/ng) 5 e zhmhnqm.a: (6hz; lo Law about “sweeping out equal areas in equal time” can be derizalh ; 6h o0 5 :zl0mqmfraz.5egk/b( )nhvb/nved most directly 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

本习题练习题目来源于题库网 (https://tiku.one)，学生可刷题练习，扫右侧二维码或加微信skysky1258，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

标记此题

2#

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 elliptical orbits with co+w x qq x;)htq5;vb/the Sun located at one focus of the ellipse.” This statement is best summarized by which o5;hb+cvo qq/ xqt;)xw ne 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

3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

99.21: What happens to the force3ch;*qzy y9w71u v /pp9il ocl of gravitational attraction between two small objects if the mass of each object is doubled and the distance between their 9cqp;lz w37cvyli9/hp1 y*oucenters 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

4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

95.09 Two spherical bodies attract each other with a gravitational force of 4.0dxdndu i d27ifvku1:n02xd idnh+999+ /t hsf N. What will be the f+:xi / 9dvfndk9hdhu2 1 tdundn0s9f+27xidiorce if the distance 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

5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.27: Two spherical, non-rotating planet5j.hh8we14g b,jx3 j9 prgbbqs, X andY, have the same uniform density59bwbx.jjhgjb h 134 qg,8 erp. Planet X has twice the radius 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

6#

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 same qj lf 0e ./3nwdlh+-imuniform density. Planet X has twice t dlmhlfjn+-/ .qw30iehe 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

7#

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 calculated if izc i8.kq*-at d/fx-ctt 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 NO-tqftci8 -ak z/cd*x.T be required in 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

本习题练习题目来源于题库网 (https://tiku.one)，学生可刷题练习，扫右侧二维码或加微信skysky1258，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

标记此题

8#

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 gravitational force Fiyp.u 9 j*b xb- pqxt9u3:hy*1p lbb;q at the 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 whicxjub 3*:hy *bby tq.li;9x1ubpp9q-p h 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

9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.30: Considering only the Moon-Earth system t8e2ly6bhr bwhnozaqmk/c 4) s9re2:d 367vt (ignore any influence of the Sun), which one of the following best exp2q hth6c rsy4em3vt9d6wl2)7 8ra bek:no b /zresses the magnitude of the 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 away from the earth wir :0- yulv6bfith a cargo for the international space station, which of the 0iv6-b: lruyf following graphs would best represent 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 the Moon 30u3 csza s5wsqet.b (experiences the same gravitational forts30(.w s ecuz3aqsb5ce as a second object at the surface of the Earth. Which of the following would be a reasonable conclusion?

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

本习题练习题目来源于题库网 (https://tiku.one)，学生可刷题练习，扫右侧二维码或加微信skysky1258，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

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 hasjs7ha oon,q,g6 -a g9v a mass, m, and a weight, W, at the surface of the moon. If we assume the moon has a nearly uo6 sa ggvh9,jqoan-7,niform density, 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 se9 h*8wa nt0j ghlo:0ufxwef/5 ven times the mass of Earth and twice the radius of Earth. jegt 0 axwf8:ho05lwh*/u 9fnThe magnitude of the gravitational acceleration at the surface of this 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

本习题练习题目来源于题库网 (https://tiku.one)，学生可刷题练习，扫右侧二维码或加微信skysky1258，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

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 radius one-half that of Earth and a mass one-fifth th7 xuj+ v b9qryv4 c/lp5tz,/zwe Earth’s mass. The gravitational acceleration at the surface of the planet is most nearly4xc7zz9pt+bq /j/ vy 5l rvu,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

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 0hkq;-gxu22 an7u hps9wxdl 4X in a circular orbit with a constant speed of 5,000m/s. The radius of orbit is 7,500,000 m. What is the magnitude of the gravitational force exer4nsl9 g 0u-2hauwxd hx27kpq;ted 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

本习题练习题目来源于题库网 (https://tiku.one)，学生可刷题练习，扫右侧二维码或加微信skysky1258，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

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 our ssz)z8 3l47e1 o uwjpkwu oqh.7un. The planet’s ork1l 78oup. uwj7wzzs3q)eoh 4bital radius is the same as the Earth’s. Approximately how many Earth years does it take for the planet to complete one orbit?

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 artificiadx/tc5i2 co5 hl satellites, 1 and 2, are put into circular orbit at the same altitude above Earth’s surface. The mass of satellite 2 is twice the mass of5t/ccd5h ix2o 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 k+e2z 6 agap0w s0jxm;a circular orbit around 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 “we07viiw*y 7c 6st14a sm2ijear ight” refers to the force a scale registers. If the Earth were to stop vc0r iwei46amy77*1aji st s2rotating, 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 js:euoj4j ( l2orbit around the sun. As the comet moves from aphelion (the point on thju4(jjo: ls e2e orbit farthest from the sun) to perihelion (the point on the orbit closest to the sun), which of the following results 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 shown, theicadj7wy ja(*tx55r (zm 2mlzfu.-o6 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 their 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 choiccz(2jtr . d(iu m5x5wza m6a*y-l7oj fes 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 circular orbit with speed van.0zu+ d g;y6bf ud*l1rdzg13vdv as1l d 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 an elliptical orbit. In terms of R, the size of the semi-major axis a6 guv3.la s1 yug1+z0d bf 1dzldv;rd* 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题库网 (https://tiku.one)，学生可刷题练习，扫右侧二维码或加微信skysky1258，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

账号		自动登录	找回密码
密码			立即注册

未使用图片

本次作答已使用