The short-period comets do NOT have randomly oriented orbits because a. they are affected by the sun’s gravity. b. they are affected by the solar wind. c. they formed in the Kuiper belt, a belt-shaped region in the plane of the solar system. d. their orbits are altered by the drag of their tails in the solar wind. e. they all were originally objects ejected from the asteroid belt.

The short-period comets do NOT have randomly oriented orbits because a. they are affected by the sun’s gravity. b. they are affected by the solar wind. c. they formed in the Kuiper belt, a belt-shaped region in the plane of the solar system. d. their orbits are altered by the drag of their tails in the solar wind. e. they all were originally objects ejected from the asteroid belt.

Horizons: Exploring the Universe (MindTap Course List)

14th Edition

ISBN:9781305960961

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter17: Mercury, Venus, And Mars

Section: Chapter Questions

Problem 2DQ: Imagine that you visit a planet orbiting another star and discover that it is heavily cratered, but...

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The condensation sequence predicts that asteroids consisting of carbonaceous material would form a. in the inner solar system where it is warmer. b. at random locations then migrating to the outer asteroid belt due to the gravitational influence of Jupiter and Saturn. c. in the outer solar system where it is very cold. d. between the orbits of Jupiter and Saturn. e. in the outer asteroid belt where it is cooler.
The rings of Uranus were discovered a. during an occultation (an eclipse) of a star. b. during an eclipse of one of the moons by the rings. c. during an eclipse of Uranus by the rings. d. as Uranus and the rings passed behind Jupiter. e. by the Voyager 1 spacecraft.
When far from the Sun, a comet consists only of its a. nucleus b. dust tail c. gas tail d. coma
d) The internal density of the comet 67P was measured by the Rosetta space-craft to be approximately p = 400 kg m-³. How close an approach to the Earth could be made by this comet before it is tidally disrupted? Express your answer in units of the Earth's radius. Ignoring the effects of heating and sublimation, state how close this comet could approach the Sun without being tidally disrupted. Express your answer in units of the Solar radius.
Chondrites are meteorites that have a. never been heated. b. been heated sufficiently to release volatiles they contained. c. been heated sufficiently to melt the chondrules. d. been completely melted. e. entered Earth’s atmosphere but will be destroyed before reaching the ground.
The Cassini division is a large gap in the rings of Saturn. This gap is most likely produced by a. the reflection of sunlight off dark material. b. resonances between ring particles and the moon Mimas. c. shepherding satellites. d. the absorption of sunlight by dark material.
Because of the lack of a temperature difference between the equator and poles of Jupiter, the a. cyclonic circulations on Earth are duplicated on Jupiter. b. high- and low-pressure regions are drawn into bands by the planet’s rapid rotation. c. belt-zone circulation is only a temporary phenomenon. d. belt-zone circulation is exceptionally stable. e. belt zone circulation is an illusion produced by the interaction of sunlight and chemicals in the Jovian atmosphere.
Saturn, as viewed through a telescope, appears as a a. spherical and heavily cratered object. b. bland and nearly featureless disk. c. disk composed of brightly colored belts and bands. d. highly elliptical and bright blue disk.
2. Comet 1943 I has a period of 512 years and an eccentricity of 0.999914 and an inclination of 22 degrees. a. What is the comet's semi major axis? b. What are its perihelion and aphelion distances? c. What is the most likely source region of this object? d. What is its tisserand parameter and what does that tell you?
The odd orbits of Nereid and Triton, which are moons of Neptune, indicate that these a. moons were captured. b. moons formed simultaneously with the planet from the same piece of the solar nebula. c. moons broke off from the rapidly rotating planet. d. moons formed as the result from a giant impact early in the planet’s history. e. orbits were disturbed long ago in an interaction with some other body.
Due to tidal forces, a moon orbiting a planet will eventually a always keep the same side toward the planet b collide with the planet c break up into a number of fragments d develop a warmer climate as time goes on Jupiter's moon Io is very volcanically active, which means it has plate tectonics. a. true b. false
Short-period comets like Halley Comet a. return to the Oort Cloud during each of their orbits b. come back again and again at predictable intervals. c. have a long tail visiable during their entire orbit around the Sun d. can never be observed without a telescope e. you can't fool me, the only short-period comet we know is Halley

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	a.	they are affected by the sun’s gravity.
	b.	they are affected by the solar wind.
	c.	they formed in the Kuiper belt, a belt-shaped region in the plane of the solar system.
	d.	their orbits are altered by the drag of their tails in the solar wind.
	e.	they all were originally objects ejected from the asteroid belt.