Solar System Online Practice
Complete this assessment to review what you’ve learned. It will not count toward your grade.
4 of 124 of 12 Items
Question
The planets of the solar system are classified into two main groups. What are the names of those two groups?(1 point)
Responses
One group is called the inner or terrestrial planets, and the other group is called the outer or giant gas planets.
One group is called the inner or terrestrial planets, and the other group is called the outer or giant gas planets.
One group is called the inner or Jovian planets, and the other group is called the outer or gas giant planets.
One group is called the inner or Jovian planets, and the other group is called the outer or gas giant planets.
One group is called the inner or gas giant planets, and the other group is called the outer or terrestrial planets.
One group is called the inner or gas giant planets, and the other group is called the outer or terrestrial planets.
One group is called the inner or outer planets, and the other group is called the terrestrial or gas giant planets.
One group is called the inner or outer planets, and the other group is called the terrestrial or gas giant planets.
Solar System Online Practice
Complete this assessment to review what you’ve learned. It will not count toward your grade.
5 of 125 of 12 Items
Question
The table shows properties of some planets in the solar system.
Property Venus Earth Mars Jupiter Saturn Neptune
Average Distance from the Sun (AU) 0.72 1.0 1.5 5.2 9.5 30
Length of Year (Earth years) 0.62 1.0 1.9 11.9 29.4 164.8
Time for One Rotation (Earth days) 243 1.0 1.03 0.41 0.44 0.67
Mass (compared to Earth) 0.80 1.0 0.1 318 95 17
Surface Gravity (compared to Earth) 0.90 1.0 0.38 2.53 1.06 1.14
Size (compared to Earth) 0.94 1.0 0.53 11.0 9.1 3.9
Average Surface Temperature (ºC) 462 14 –62 –145 –140 –214
Number of Moons 0 1 2 79 82 14
The planet Uranus is between Saturn and Neptune. What is a reasonable estimate for the distance, in AU, from Uranus to the sun?
(1 point)
Responses
8
8
20
20
32
32
4
4
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page 4 of 4
The planet Uranus is between Saturn and Neptune. What is a reasonable estimate for the distance, in AU, from Uranus to the sun?
1. 8
2. 20
3. 32
4. 4
How does the greenhouse effect enable life on Earth?(1 point)
Responses
It allows the atmosphere to retain heat.
It allows the atmosphere to retain heat.
It keeps out the sun’s harmful UV radiation.
It keeps out the sun’s harmful UV radiation.
It controls the amount of carbon dioxide in the atmosphere.
It controls the amount of carbon dioxide in the atmosphere.
It keeps the atmosphere thick.
It allows the atmosphere to retain heat.
The correct answer is:
One group is called the inner or terrestrial planets, and the other group is called the outer or giant gas planets.
To answer this question, we need to know the classifications of the planets in the solar system.
The planets in the solar system are classified into two main groups based on their characteristics and position in the solar system.
The first group is called the inner or terrestrial planets. These planets are located closer to the Sun and are primarily composed of solid material, such as rocks and metals. The inner planets include Mercury, Venus, Earth, and Mars.
The second group is called the outer or giant gas planets. These planets are located farther from the Sun and are primarily composed of gases, such as hydrogen and helium. The outer planets include Jupiter, Saturn, Uranus, and Neptune.
So, the correct answer to the question is:
One group is called the inner or terrestrial planets, and the other group is called the outer or giant gas planets.