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.
Solar System Unit Test
5 of 135 of 13 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
Which planet is most similar in size to Earth?
(1 point)
Responses
Jupiter
Jupiter
Neptune
Neptune
Venus
Venus
Mars
Mars
Mars
The correct answers are:
1) The sun is so massive that it has the most gravity.
2) The sandcastle would remain in place the same size that it was because the moon has no wind.
3) moons and meteors.
4) They consist of a mixture of gases and liquid.
5) Venus.