21st Century Astronomy: The Solar System (Sixth Edition)
6th Edition
ISBN: 9780393691283
Author: Laura Kay; Stacy Palen; George Blumenthal
Publisher: W. W. Norton
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Chapter 4, Problem 4QP
To determine
The change in a person’s mass on Earth and on Moon.
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Students have asked these similar questions
Why does the Moon have a greater influence on Earth's tides than the Sun does?
A.
because the Moon is closer to Earth than the Sun is
B.
because the Moon is more massive than the Sun
C.
because the Moon is less massive than the Sun
D.
because the Moon is farther away from Earth than the Sun is
A satellite orbits the earth instead of flying off into space because
a. gravity continuously pulls it towards the earth.
b. solar reflectors continuously push it towards the earth.
c. wind sails continuously push it towards the earth.
d. rocket thrusters continuously push it towards the earth.
Which of the following is a measurable effect of the tidal interactions between the Earth and the moon?
choose 1 of the following:
a.
The moon is constantly getting closer to the Earth, and will one day collide with our planet.
b.
The rotation rate of the Earth is gradually slowing down.
c.
The rotation rate of the moon is gradually speeding up.
d.
The moon pulls more strongly on the far side of the Earth than it does on the near side.
Chapter 4 Solutions
21st Century Astronomy: The Solar System (Sixth Edition)
Ch. 4.1 - Prob. 4.1ACYUCh. 4.1 - Prob. 4.1BCYUCh. 4.2 - Prob. 4.2CYUCh. 4.3 - Prob. 4.3CYUCh. 4.4 - Prob. 4.4CYUCh. 4 - Prob. 1QPCh. 4 - Prob. 2QPCh. 4 - Prob. 3QPCh. 4 - Prob. 4QPCh. 4 - Prob. 5QP
Ch. 4 - Prob. 6QPCh. 4 - Prob. 7QPCh. 4 - Prob. 8QPCh. 4 - Prob. 9QPCh. 4 - Prob. 10QPCh. 4 - Prob. 11QPCh. 4 - Prob. 12QPCh. 4 - Prob. 13QPCh. 4 - Prob. 14QPCh. 4 - Prob. 15QPCh. 4 - Prob. 16QPCh. 4 - Prob. 17QPCh. 4 - Prob. 18QPCh. 4 - Prob. 19QPCh. 4 - Prob. 20QPCh. 4 - Prob. 21QPCh. 4 - Prob. 22QPCh. 4 - Prob. 23QPCh. 4 - Prob. 24QPCh. 4 - Prob. 25QPCh. 4 - Prob. 26QPCh. 4 - Prob. 27QPCh. 4 - Prob. 28QPCh. 4 - Prob. 29QPCh. 4 - Prob. 30QPCh. 4 - Prob. 31QPCh. 4 - Prob. 32QPCh. 4 - Prob. 33QPCh. 4 - Prob. 34QPCh. 4 - Prob. 35QPCh. 4 - Prob. 36QPCh. 4 - Prob. 37QPCh. 4 - Prob. 38QPCh. 4 - Prob. 39QPCh. 4 - Prob. 40QPCh. 4 - Prob. 41QPCh. 4 - Prob. 42QPCh. 4 - Prob. 43QPCh. 4 - Prob. 44QPCh. 4 - Prob. 45QP
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- Imagine that you visit a planet orbiting another star and discover that it is heavily cratered, but its small moon is nearly crater free. Why would that be a surprise? Speculate about what might have happened to those objects.arrow_forwardThe rotation of the planets around the sun is governed by: A. The gravitational field of the sun. B. The gravity of the stars. C. The heat energy of the sun. D. The gravity of the other planets of the solar system. Kelper's second law relates between them: O A. The time period of rotation of the orbiting planet around the sun and the average distance of the planet to the sun. OB. The time period of rotation of the orbiting planet around the sun and the average distance of the planet to the earth. C. The time period of rotation of the orbiting planet around the sun and the average distance of the planet to the moon. OD. The time period of rotation of the orbiting planet around the earth and the average distance of the planet to the sun.arrow_forward3. What is the gravitational field strength at the surface of Venus?arrow_forward
- 27. Less force is required to launch a spaceship from the surface of the Moon than to launch an identical ship from the surface of Earth becauseA. the Moon has a smaller surface area than Earth.B. the mass of an object on Earth is greater than on the Moon.C. the gravitational field of the Moon is less than that of Earth.D. the atmosphere of the Moon is much thinner than that of Earth.arrow_forwardHow would the strength of the force between the Moon and Earth change if the mass of the Moon were somehow made two times greater than its actual mass? A. It would double. B. It would quadruple. C. It would decrease by half. D. It would not change.arrow_forwardEach year, the radius of the moon’s orbit increases by about 3.8 cm. How does this change affect the length of a month?A. A month gets longer.B. A month gets shorter.C. The length of a month stays the same.arrow_forward
- According to Lunar Laser Ranging experiments the average distance LM from the Earth to the Moon is approximately 3.85 × 10° km. The Moon orbits the Earth and completes one revolution in approximately 27.5 days (a sidereal month). How can the mass of the Earth be calculated using the information above? Select the correct statements. Select one or more: O a. Use Newton's third law. O b. Use Newton's first law. c. Use Coulombs law. O d. Use Newton's second law.arrow_forward19. According to Isaac Newton, the value of the constant, k, in Kepler's Third Law (P2 = ka3) is dependent on which one of the following quantities for objects within the Solar System? a. The distance between the Sun and its planet. b. The mass of the planet. c. The electric charge of the Sun. d. The mass of the Sun.arrow_forwardSolar eclipse will take place when: A. the sun is between the moon and the earth B. the earth is between the moon and the sun C. the moon is between the sun and the earth D. the moon does not lie on the line joining the sun and the eartharrow_forward
- Q1. A planet has two moons of equal mass. Moon 1 is in circular orbit of radius r. Moon 2 is in a circular orbit of radius 2r. What is the magnitude of the gravitational force exerted by the planet on Moon 2? a. Four times as large as that on Moon 1 b. Twice as large as that on Moon 1 c. Equal to that on Moon 1 d. Half as large as that on Moon 1 e. One fourth as large as that on Moon 1 Q2. Superman stands on a top of very tall mountain and throws a baseball horizontally with a speed such that the baseball goes into a circular orbit around the earth While the baseball is in the orbit, what is the magnitude of the acceleration of the ball? a. It depends on how fast the baseball is thrown b. It is zero because the ball does not fall to the ground c. It is slightly less than 9.80m/s^2 d. It is equal to 9.80m/s^2 Q3. A comet moves in an elliptical orbit around the sun. Which point in its orbit (perihelion or aphelion) represent the highest value of a. The speed of the comet b. The…arrow_forwardWhen tidal bulges are NOT in a direct Earth-moon line but slightly ahead of the moon, a. Earth’s gravity weakens. b. their gravitational field pulls the moon forward in its orbit, causing it to recede from Earth. c. their gravitational field pulls the moon back in its orbit, causing the moon to fall toward Earth. d. Earth’s gravity strengthens, causing the moon to orbit faster. e. the tidal bulges have no effect on the moon.arrow_forwardNewton reasoned that the gravitational attraction between the earth and moon must be Select one: a. the same at all distances. b. directly proportional to their distance squared. c. inversely proportional to their distance. d. inversely proportional to their distance squared.arrow_forward
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