Worksheets7th Grade Chapter 7.2 Test Review
Total questions: 19
Worksheet time: 10mins
Pluto is one of several celestial bodies called dwarf planets located in Kuiper Belt.
True
False
In a given amount of time, a planet will cover more area when it is farther from the sun than it will cover when it is close to the sun.
True
False
All planets spin on their axes in the same direction.
True
False
Uranus is unique because its rotation is retrograde and its axis is not tilted at all.
True
False
All of the outer planets have rings.
True
False
The force that resists motion between two surfaces that are in contact with each other is
comet
friction
meteor
meteroite
A frozen chunk of ice, dust, and rock that gives off tails of dust and charged particles as it passes near the sun during its orbit is
comet
meteor
meteorite
meteroid
A meteoroid that enters Earth's atmosphere and strikes the ground is a
meteoroid
meteorite
meteor
comet
A meteoroid that enters the earth's atmosphere and burns up is
meteor
meteroite
meteroid
comet
A rock fragment from an asteroid or comet is a
comet
meteorite
meteoroid
meteor
According to Kepler's third law of planetary motion, what two features of a planet's orbit are related?
semimajor axis and period
major axis and period of rotation
major axis and period of revolution
semimajor axis and period of revolution
What affects the amount of atmospheric friction that a falling object experiences?
How much the object resists air passing around it
the object's size
how fast the object is moving
all of the above
Which moon has geysers?
Neptune's Triton
Pluto's Charon
Saturn's Phoebe
Jupiter's Io
What does gravity have to do with planetary orbits?
It keeps planets from crashing into the sun.
It slows planets down as they get closer to the sun.
It keeps the planets from traveling indefinitely into space.
All of the above
Which planet is particularly known for its rings?
Jupiter
Uranus
Neptune
Saturn
Which of the inner planets has the strongest gravity?
Earth
Venus
Mercury
Mars
Which of the inner planets is closest to the sun?
Mars
Earth
Venus
Mercury
How are the outer planets alike?
Each is larger than any of the inner planets.
The most common elements in each are hydrogen and helium.
None has a known solid surface.
All of the above.
Which of the inner planets has water only in ice or vapor form?
Mercury
Mars
Earth
Venus
