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Touring Our Solar System Flashcards | StudBud
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Touring Our Solar System
Touring Our Solar System
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1
The largest of the terrestrial planets is
Jupiter
Uranus
Mars
Earth
2
According to scientists, the solar system formed from
rotating stars
a rotating disk of dust and gases
colliding planetesimals
colliding nebulae
3
Which of the following is NOT a source of meteoroids
the solid remains of comets
material from the asteroid belt.
rocky chunks from neighboring solar systems.
leftover interplanetary debris.
4
One reason that life as we know it is unlikely to exist on Venus is because
the surface has too much ice covering it.
there is no atmosphere.
the surface temperature is too high.
the surface temperature is too low.
5
Which planet has an axis of rotation parallel with the plane of its orbit?
Neptune
Saturn
Jupiter
Uranus
6
What is the mass of Jupiter?
2 times the mass of all the terrestrial planets
half the mass of all the Jovian planets
2.5 times the mass of Earth
2.5 times the mass of all other planets and their moons
7
The densities of the Jovian planets are
about 1.5 times the density of water
from 3.9 to 5.5 times the density of water
about 0.5 times the density of water
more than 5.5 times the density of water
8
The fact that Mercury has no atmosphere is evidence that it
reflects almost all of the sunlight that strikes it.
is much farther from the sun than it appears.
is composed almost entirely of gases.
absorbs almost all of the sunlight that strikes it.
9
Most asteroids like between the orbits of
Mars and Earth
Mars and Jupiter
Jupiter and Neptune
Jupiter and Saturn
10
Which of the following is true about comets?
Comets are held together by frozen gases.
The Oort cloud of comets is found between Neptune and Pluto.
All comets have long tails made of vaporizing gases.
Comets' orbits do not take them past the Jovian planets.
11
The nucleus of Halley's comet is approximately
16 km by 8 km
1 m wide
100 km wide
1 km wide
12
Which planet is the windiest and has an atmosphere made of H, He, and methane?
Neptune
Uranus
Saturn
Jupiter
13
Which of the following is one difference between the way terrestrial & Jovian planets formed?
The terrestrial planets formed only from bits of ice.
The terrestrial planets formed only from metals & silicates.
The Jovian planets formed only from metals and silicates.
The Jovian planets formed only from bits of ice.
14
Which of the following is true about asteroids.
Asteroids rarely pass close to Earth.
Asteroids never actually collide with planets.
Most asteroids are no larger than a grain of sand.
Recent impact craters on the moon were caused by asteroids.
15
Which of the Jovian planets have rings?
Saturn, Jupiter, Uranus
Saturn and Jupiter
Saturn, Jupiter, Neptune, Uranus
Saturn and Neptune
16
Which of the following is NOT considered a terrestrial planet.
Mars
Venus
Mercury
Neptune
17
The Kuiper belt is a region beyond Neptune containing
meteors smaller than 1 km across.
comets with short orbit periods.
a dense collection of meteoroids.
comets with unusually large nuclei.
18
How does the diameter of the terrestrial and Jovian planets compare?
They are about equal.
The diameters of the terrestrial planets are much larger.
The diameters of the Jovian planets are much larger.
19
Scientist have been able to estimate the age of our solar system by dating
meteorites
meteors
asteroids
comets
20
When viewed from Earth, Mars appears to change colors. This happens because
volcanic activity produces thick gas clouds.
dust storms cause the atmosphere to change colors.
gases in its atmosphere are changing.
active volcanoes intermittently flood its surface with lava.
