Chapter 15: The Solar System

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

The density of Jupiter is...

25% that of the density of Earth

The mass of the Sun is how much larger than all of the other planets, moons, asteroids, and other bodies in the solar system?

700 times larger

The Great Red Spot on Jupiter is though to be what?

A high-pressure region with high, cold clouds.

What separates the terrestrial planets from the giant planets?

Asteroid belt

Why does the sun rise in the west on Venus?

Because Venus rotates in the opposite direction of its revolution.

Why does Venus shine?

Because it is covered with clouds that reflect sunlight.

The best of asteroids between Mars and Jupiter is probably...

Clumps of matter that condensed from the accretion disk but never got together as a planet.

Saturn's rings are thought to be...

Composed of thousands of particles of various sizes.

Callisto, Europa, Ganymede, and Io are...

Galilean moons

Which of the following is most likely found on Jupiter?

Hydrogen

What is the largest planet in our solar system?

Jupiter

What planet still has its original atmosphere?

Jupiter

Short-period comets have orbital periods of?

Less than 200 years.

The day on which planet is about the same time period as a day on Earth?

Mars

The planet that has the shortest "year" among the eight planets is?

Mercury

The planet that is not a giant is?

Mercury

The planet that was named after the mythical Roman messenger of speed is?

Mercury

What is the outermost planet?

Neptune

What planets are considered "twins"?

Neptune and Uranus

What is the area of the solar system where long-period comets originate?

Oort cloud

The planet with the lowest average density, which is the less than that of liquid water, is?

Saturn

Jupiter radiates twice as much energy as it receives from the Sun because of?

Slow gravitational compression of the planet.

What type of planets are Mercury, Venus, Earth, and Mars?

Terrestrial planets

The only moon in the solar system with a substantial atmosphere is?

Titan

How many moons orbit Mars?

Two

Which of the following planets would be mostly composed of hydrogen, helium, and methane and have a density of less than 2g/cm^3?

Uranus

A day on which planet is longer than a year on that planet?

Venus

What is the "sister" planet to Earth?

Venus

What planet is called the morning star and the evening star, depending on its position with respect to the Sun?

Venus

The distance from Earth to the Sun is called a (an)?

astronomical unit

What feature on Mars was considered by some to be evidence of life on Mars?

channels or canals

The small body with a composition and structure closest to the materials that condensed from the accretion disk is a (an)?

comet

What phase does Venus appear to be the brightest?

crescent phase

Planets in our solar system are classified according to what characteristics?

density, size, and nature of the atmosphere

Meteorites are classified into what groups?

iron, stony, and stony-iron

A shooting star is a (an)?

meteor

A small body from space that falls on the surface of Earth is a?

meteorite

Remnants of comets and asteroids found in space are called?

meteoroids

What is the most widely accepted theory on the origin of the solar system?

protoplanet nebular

The metallic hydrogen that surrounds the core of Jupiter is what?

under tremendous pressure, a liquid, and a conductor of electric currents.

Mars has distinct surface feature-related regions. What are those regions?

volcanic, systems of canyons, plateaus near the poles.


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