Which of these descriptions best defines the solar system?

the sun and all bodies that travel around it

Johannes Kepler made laws of planetary motion. How do planets move in the solar system?

elliptical orbits around the Sun

Why is a year on Mars longer than a year on Earth?

Mars is farther from the sun than Earth is.

This image with the sun in the center represents what?

heliocentric model of the solar system

atmosphere reflects heat back down

Which of these choices states Kepler’s first law of planetary motion?

orbit of planets is an ellipse, with sun as one focus

Which planets have rings of ice and rock particles that orbit around their equators.?

Jupiter, Saturn, Uranus and Neptune

Which flow chart best describes the formation of the solar system?

solar nebula > disk > fusion > sun > planetesimals > planets

How does the lack of atmosphere affect temp on Mercury?

Temp vary more than they would if Mercury had an atmosphere.

What is the law of universal gravitation?

Gravity increases by increasing mass or decrease in distance

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Solar System Exam Review

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Questions 25

Answers

1
Which of these descriptions best defines the solar system?
the sun and all bodies that travel around it
planets and asteroids
the sun and all planets
planets and their moons
2
Johannes Kepler made laws of planetary motion. How do planets move in the solar system?
elliptical orbits around the Sun
circular orbits around the Sun
circular orbits around Earth
elliptical orbits around Earth
3
Which model of the solar system had planets moving in circles as they orbited Earth?
Aristarchan model
Copernican model
geocentric model
heliocentric model
4
Which of the terrestrial planets has the densest atmosphere?
Venus
Earth
Mercury
Mars
5
From which object did the Solar system form?
solar nebula
planetesimal
protoplanetary disc
star
6
Which configuration will result in the greatest gravitational force?
large masses close together
small masses far apart
small masses close together
large masses far apart
7
Why is a year on Mars longer than a year on Earth?
Mars has a thin atmosphere
Mars has a longer period of rotation
Mars has a greater axial tilt
Mars is farther from the sun than Earth is.
8
Which phrase best describes the HELIOCENTRIC MODEL of the solar system?
Earth-centered
moon-centered
Sun-centered
Helicopter-centered
9
This image with the sun in the center represents what?
heliocentric model of the solar system
location of the planets by size and distance
geocentric model of the solar system
galaxy closest to Earth
10
Why is Venus so hot?
rotation affects how the rays hit
it is named after the goddess of love
surface absorbs energy from the Sun
atmosphere reflects heat back down
11
Which term describes the small body from which a planet forms?
planetesimal
star
solar nebula
protoplanetary disc
12
Which of these choices states Kepler’s first law of planetary motion?
square of planet orbital period is proportional to distance
orbit of planets is an ellipse, with sun as one focus
planets sweep equal areas in equal times
gravity increases as mass increase or distance decrease
13
Which of the following best describes the characteristics of the TERRESTRIAL PLANETS?
rocky cores; close to sun; surface craters
made up of hydrogen and helium; small; close to sun
large, planetary rings; many moons
small, dense, rocky surfaces
14
What is the Oort cloud made up of?
trillions of comets
equal numbers of comets, asteroids, and meteoroids.
dwarf planets and meteoroids
some comets and many asteroids
15
Which has the fastest orbital speed?
dwarf planet between Mars and Jupiter
Kuiper belt object
comet as it nears the Sun
asteroid
16
According to the model created by Copernicus, what causes day and night on Earth?
Earth rotates on its axis
Planets orbit the Sun in circular paths
Planets orbit the Sun in elliptical paths
Earth revolves around the Sun
17
Where are dwarf planets located?
Only in the Kuiper Belt
Kuiper Belt and Asteroid Belt
Land of Oz and Kuiper Belt
Only in the Oort Cloud
18
Which planets have rings of ice and rock particles that orbit around their equators.?
Jupiter, Saturn, Uranus and Neptune
Jupiter, Saturn, Uranus, Neptune and Pluto
Jupiter and Saturn
Saturn only
19
Which flow chart best describes the formation of the solar system?
solar nebula > disk > fusion > sun > planetesimals > planets
solar nebula > disk > fusion > planetesimals > planets > sun
disc> fusion> sun> solar nebula> planetesimals> planets
solar nebula> fusion> planets> planetesimals> disc
20
How are Jupiter and Saturn similar?
They have the same density
they have many satellites
they are close to the Sun
They are mostly carbon dioxide
21
How does the lack of atmosphere affect temp on Mercury?
Temp would not be affected if Mercury had an atmosphere.
Temp vary less than if it had an atmosphere
Temp vary more than they would if Mercury had an atmosphere.
Temp would be affected only when Mercury is close to the sun
22
What is the law of universal gravitation?
Planets move in elliptical orbits
Distance determines time to orbit
Gravity increases by increasing mass or decrease in distance
Gravity makes orbits
23
Which planet is tilted on its side?
Mercury
Uranus
Neptune
Jupiter
24
At what point in Earth’s orbit is Earth closest to the sun?
perihelion
when it reaches slowest orbital speed
aphelion
at average distance from Sun
25
Where is the Kuiper Belt?
Between the orbits of Neptune and Jupiter
between the orbits of Jupiter and Mars
between the orbits of Earth and Mars
outside the orbit of Neptune

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