Connections Academy
UNIT 3
Solar System
LESSON 13
Solar System Unit Test
Solar System Unit Test
13 questions
A video shows the objects in the solar system orbiting the sun. Why do objects orbit the sun?(1 point)
Responses
The sun is so massive that it has the most gravity.
The sun is so massive that it has the most gravity.
The sun is releasing heat and pushing objects away.
The sun is releasing heat and pushing objects away.
The sun is so bright that objects are forced away.
The sun is so bright that objects are forced away.
The sun is moving so quickly that other objects move around it.
Suppose a person built a sandcastle of moon sand on the moon. What would that person find there a month later?(1 point)
Responses
The sandcastle would be much smaller because changing winds would have eroded much of the sand away.
The sandcastle would be much smaller because changing winds would have eroded much of the sand away.
The sandcastle would have grown larger because moon sand particles attract other moon sand particles.
The sandcastle would have grown larger because moon sand particles attract other moon sand particles.
The sandcastle would remain in place the same size that it was because the moon has no wind.
The sandcastle would remain in place the same size that it was because the moon has no wind.
The sandcastle would have grown larger by collecting more sand particles because moon sand is blown by wind.
Use the scenario to answer the question.
A student creates a diagram comparing the sizes of objects in the solar system.
Which two objects are often similar in size?
(1 point)
Responses
planets and meteors
planets and meteors
asteroids and comets
asteroids and comets
comets and planets
comets and planets
moons and meteors
moons and meteors
How do outer planets differ from inner planets?(1 point)
Responses
They are not different from inner planets.
They are not different from inner planets.
They have very large solid surfaces.
They have very large solid surfaces.
They are smaller than the inner planets.
They are smaller than the inner planets.
They consist of a mixture of gases and liquid.
They consist of a mixture of gases and liquid.
Use the scenario to answer the question.
A student creates a diagram comparing the sizes of objects in the solar system.
Which two objects are often similar in size?
(1 point)
Responses
planets and meteors
planets and meteors
asteroids and comets
asteroids and comets
comets and planets
comets and planets
moons and meteors
comets and planets
They consist of a mixture of gases and liquid.
To answer the first question, "Why do objects orbit the sun?", we can eliminate the options one by one.
First option: "The sun is so massive that it has the most gravity." This option is correct, as objects orbit the sun due to the sun's massive gravitational pull.
Second option: "The sun is releasing heat and pushing objects away." This is incorrect, as objects do not orbit the sun because of the sun's heat pushing them away.
Third option: "The sun is so bright that objects are forced away." Similar to the second option, this is incorrect as objects do not orbit the sun because of its brightness.
Fourth option: "The sun is moving so quickly that other objects move around it." This is incorrect, as objects do not orbit the sun because of its own movement.
Thus, the correct answer is "The sun is so massive that it has the most gravity."
Moving on to the second question, "Suppose a person built a sandcastle of moon sand on the moon. What would that person find there a month later?"
First option: "The sandcastle would be much smaller because changing winds would have eroded much of the sand away." This is correct, as the moon does not have an atmosphere to protect against wind erosion.
Second option: "The sandcastle would have grown larger because moon sand particles attract other moon sand particles." This is incorrect as there is no evidence to suggest that moon sand particles attract each other.
Third option: "The sandcastle would remain in place the same size that it was because the moon has no wind." This is incorrect, as the moon does not have wind, but it does have a lack of an atmosphere to protect against wind erosion.
Fourth option: "The sandcastle would have grown larger by collecting more sand particles because moon sand is blown by wind." This is incorrect as there is no evidence to suggest that moon sand is blown by wind.
Thus, the correct answer is "The sandcastle would be much smaller because changing winds would have eroded much of the sand away."
Moving on to the third question, "Which two objects are often similar in size?"
First option: "planets and meteors." This is incorrect, as meteors are typically much smaller than planets.
Second option: "asteroids and comets." This is incorrect as asteroids and comets can vary in size, and they do not necessarily have sizes similar to each other.
Third option: "comets and planets." This is incorrect as comets can vary in size, and they do not necessarily have sizes similar to planets.
Fourth option: "moons and meteors." This is incorrect as moons can vary in size, and they do not necessarily have sizes similar to meteors.
Therefore, none of the options provided are correct. Please note that this question may require additional research or information to find the correct answer.
Moving on to the final question, "How do outer planets differ from inner planets?"
First option: "They are not different from inner planets." This is incorrect as outer planets do have some significant differences compared to inner planets.
Second option: "They have very large solid surfaces." This is incorrect as outer planets, such as gas giants, do not have solid surfaces like inner planets.
Third option: "They are smaller than the inner planets." This is incorrect as outer planets, such as gas giants, can be much larger than the inner planets.
Fourth option: "They consist of a mixture of gases and liquid." This is correct, as outer planets are primarily composed of gas and liquid, unlike the inner planets which have rocky surfaces.
Therefore, the correct answer is "They consist of a mixture of gases and liquid."