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Worksheets6th Unit 8 Test Review
Total questions: 20
Worksheet time: 41mins
Name
Class
Date
1.
Scientists observed a rocky, rotating object orbiting in space. It was 250 km wide and it was located several times farther away from the Sun than the Earth. The object was probably-
a)
an asteroid
b)
the moon
c)
Mars
d)
Venus
2.
When making a model of the solar system, a student chose a 14 cm diameter ball to represent Jupiter. What size ball would be the best choice to represent Earth?
a)
16 cm
b)
12 cm
c)
1.2 cm
d)
0.5 cm
3.
"Made mostly of ice" fits best under which heading in the Venn diagram?
a)
Meteor
b)
Section X
c)
Asteroid
d)
Comet
4.
All the planets in our solar system have about the same-
a)
shape
b)
mass
c)
diameter
d)
composition
5.
Which of the following represents characteristics of the four planets farthest from the Sun?
a)
smaller planets
b)
3 or less moons
c)
gas giants
d)
rocky planets
6.
What planet was Galileo observing when he discovered the Galilean moons?
a)
Jupiter
b)
Neptune
c)
Saturn
d)
Uranus
7.
A probe is a vehicle designed to carry instruments, but not a crew. To which of the following places would we most likely send a probe?
a)
Mountain top
b)
Saturn
c)
The International Space Station
d)
Inside the Sun
8.
The Moon travels in an elliptical orbit that is nearly circular around the Earth. Which of the following best explains the cause of the Moon's motion?
a)
The Moon is affected by the unbalanced force of Earth's gravity which cause it to maintain its orbit
b)
The Moon is acted on by unbalanced forces
c)
The gravitational forces from the Sun and Earth on the Moon are equal
d)
There was a gravitational force millions of years ago that pulled the Moon in an elliptical direction and it hasn't been acted on by a force since then
9.
Which planet has the greatest gravitational force?
a)
Venus
b)
Mercury
c)
Earth
d)
Jupiter
10.
Which statement accurately describes the movement of objects in our solar system?
a)
The Sun revolves around the planets, and moons rotate around planets
b)
The planets revolve around the Sun, and the moons revolve around the planets
c)
The moons rotate around planets, and planets revolve around the Sun
d)
The planets rotate around the Sun, and moons revolve around the planets
11.
Why does it take Neptune so long to revolve around the Sun?
a)
Neptune's large diameter is causing it to slow down
b)
The Sun is applying large amounts of gravity on it, so it's slowing down
c)
Neptune is rotating so fast that it's energy is being transferred into rotational speed
d)
Neptune is such a long distance away that it has a large orbital path
12.
Mars is very similar to Earth. Which is a statement that describes a property of Earth, but NOT a property of Mars?
a)
One or more moons orbit the planet
b)
The planet is constantly in motion
c)
The orbital path is predictable
d)
An abundance of liquid water is located on the planet
13.
The Sun is the center of our solar system and creates a large amount of gravitational force. If this system lost the Sun, what would happen to the planets?
a)
The planets would explode
b)
The planets would travel in a straight line
c)
The planets would continue on their same path
d)
The planets would stop moving
14.
Which of the following accurately describes the orbital path of most planets in our solar system?
a)
The orbital path is in a large elliptical shape
b)
The orbital path is in a perfect circle
c)
The orbital path varies greatly from planet to planet
d)
The orbital path is an ellipse, but looks almost circular
15.
Which planet takes 165 years to complete a single orbit, the longest revolution of any planet around the Sun?
a)
Neptune
b)
Mercury
c)
Uranus
d)
Earth
16.
Which of the following represents characteristics of the four planets closest to the Sun?
a)
Gas giants
b)
Larger planets
c)
Rocky planets
d)
4 or more moons
17.
On which planet would a person weigh the least?
a)
Mercury
b)
Earth
c)
Jupiter
d)
Venus
18.
Which best describes meteors?
a)
Solids that orbit many planets, many of which are asteroids or comets caught by the gravitational pull of more massive planets
b)
Solids that range in size from dust to small rocks, often due to the breakup of comets, that burn briefly when the enter they Earth's atmosphere
c)
Solids made of rock and ice with very elliptical orbits from beyond Neptune and release gas and dust in a bright display that can last for weeks
d)
Solids with irregular shapes, some of which are larger than Pluto, that mostly orbit the Sun between the orbits of Mars and Venus
19.
NASA has developed many different vehicles to carry men and women into space. Until recently, the U.S. has used the space shuttle. The space shuttle differed from previous space vehicles because it-
a)
could carry more than one person
b)
could travel beyond Earth's orbit
c)
was airtight
d)
was reusable
20.
Identify the planet on the chart that would most likely be the coldest.
a)
Uranus
b)
Saturn
c)
Jupiter
d)
Mars
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