What is the most likely cause for the differences in orbital speed of planets in solar system?

Planets farthest have weaker gravity attraction from sun & orbit slower.

Why doesn’t the Sun's gravity cause the planets to fall into the Sun?

The speed of the planet's inertia keeps them out.

What is Kepler's law of ellipses?

All planets orbit the sun in a shape determined by foci

How does the nebular theory describe the formation of the solar system?

A cloud of spinning dust and gas condensed into the sun and planets

Which statement best describes the "runaway greenhouse effect" on Venus?

solar energy is trapped by massive CO2 gas in its atmopshere

According to the geocentric model...

the Earth is at the centre of the Universe

What are the outer planets?

Jupiter, Saturn, Uranus, and Neptune

What is the Heliocentric model?

The Earth and the other planets orbit the sun

A planet that orbits another star that is outside our solar system

The gas giants can be described as...

Have deep massive gas atmospheres of hydrogen and helium

How did scientists hypothesize water get on Earth?

Comets with ice colliding with Earth

a cloud of dust and gas in space

What is eccentricity?

How elongated/ellipsoid an orbit is

What is Planetary Differentiation

more dense materials sink and less dense materials stay on the surface

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Chapter 27 Planets of the Solar System

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Questions 31

Answers

1
What is the most likely cause for the differences in orbital speed of planets in solar system?
Planets farthest away have the least mass & so orbit slower.
Planets farthest have weaker gravity attraction from sun & orbit slower.
Planets farthest have little atmosphere allowing faster orbits.
Planets farthest have less dense air, allowing them to move faster
2
Why doesn’t the Sun's gravity cause the planets to fall into the Sun?
The background stars pull back on the planets.
The speed of the planet's inertia keeps them out.
The Sun’s rotation pushes the planets out.
The Sun’s magnetic fields are pushing out.
3
What is Kepler's law of ellipses?
An astronomer who believed that planets revolve around the sun
All planets orbit the sun in a shape determined by foci
theory that the sun and planets condensed at the same time
small bodies from the planets originated in the solar system
4
The heliocentric model was created by
Copernicus
Newton
Ptolemy
Hubble
5
How does the nebular theory describe the formation of the solar system?
Matter form the Big Bang was blasted into space creating planets
An asteroid collision broke apart & became planets and the sun
A star exploded & created the planets we have today
A cloud of spinning dust and gas condensed into the sun and planets
6
Which statement best describes the "runaway greenhouse effect" on Venus?
massive volcanism on the surface causes lava flows
solar energy is trapped by massive CO2 gas in its atmopshere
it's very hot on Venus because it's too close to the Sun
too little CO2 in the atmopshere causes heat to be released
7
According to the geocentric model...
the Earth and the Sun are at the centre of the Universe
the Earth and the Moon are at the centre of the Universe
the Earth is at the centre of the Universe
the Sun is at the centre of the Universe
8
Unique Characteristic of Jupiter?
atmosphere
Big red spot
Rocky core
Weather
9
Are there any other planets currently with liquid water in the solar system, if yes, then which?
Not a single one
Yes, Mars
Yes, Ganymede
Yes, Jupiter
10
What are the outer planets known as?
Giants
Gas giants
Supernova
Dwarf planets
11
What are the outer planets?
Mercury, Venus, Earth, and Mars
Jupiter, Saturn, Uranus, and Neptune
Jupiter, Saturn, Venus, and Earth
Jupiter, Saturn, Uranus, and Mercury
12
Pluto is now known as a dwarf planet and member of:
The Final Four
The Kuiper Belt
The Oort Cloud
The Seven Sisters
13
Which is NOT a characteristic of terrestrial planets?
made of metal/rock
hot/warm
far from the sun
close to the sun
14
Why does Mercury has more impact craters than Earth?
It moves faster in its orbit.
It is closer to the sun.
It rotates more rapidly.
It has no atmosphere.
15
What is the Heliocentric model?
The Earth and the other planets orbit the sun
The Earth orbiting the sun
The Earth in the center with planets orbiting it
The sun orbiting the planets
16
What are Exoplanets?
A Skeleton used for scientific purposes
A planet that orbits another star that is outside our solar system
A star that orbits another star that is outside Earth
Something
17
What does the ozone protect us from?
carbon dioxide
light
ultraviolet radiation
infrared rays
18
List the inner planets in order
Jupiter, Saturn, Uranus, Neptune
Neptune, Jupiter, Uranus, Saturn
Mercury, Venus, Earth, Mars
Earth, Mars, Mercury, Venus
19
The gas giants can be described as...
Have deep massive gas atmospheres of hydrogen and helium
Are the four planets closest to the sun
Have atmospheres the most similar to earths
Stinky planets that consist of thick dense fog atmosphere.
20
Which planet shows evidence of water erosion
venus
mars
jupiter
mercury
21
Kepler’s second law states that equal areas are covered in equal amounts of time when an object does what?
spins on its axis
completes an eclipse
orbits the sun
travels one light-year
22
How did scientists hypothesize water get on Earth?
Comets with ice colliding with Earth
Water came from the atmosphere
Earth rocks formed water
Volcanos
23
What is a nebula?
a cloud chamber in a vacuum
a cloud of dust and gas in space
a theory for planet creation
file on your computer
24
What do we call the inner planets?
gas giants
rock planets.
Terrestrial planets,
25
Who supported the Geocentric Model?
The pope
Ptolemy
The Entire Nation of France
Nicolaus Copernicus
26
The charateristic that is common to all the inner planets is:
they all are made of rock
they are made of gas and ice
they are all surrounded by poison gases
they are all support life
27
What are Saturns rings made of.
just dust
nothing
gas
ice, rock, and dust
28
What is eccentricity?
How flattened a planet it
A decimal
A flamboyant figure
How elongated/ellipsoid an orbit is
29
Which gas was not present the earth's early atmosphere?
Nitrogen
Ammonia
Oxygen
Carbon nDioxide
30
Uranus rotation axis is almost parallel to the orbit plane
False
True
31
What is Planetary Differentiation
more dense materials sink and less dense materials stay on the surface
all materials sink
less dense materials sink and more dense materials stay on the surface
all materials stay on the surface

Chapter 27 Planets of the Solar System Flashcards | StudBud