Earth Science Solar System Quiz Review
Which of the following eccentricity values would produce most eccentric orbit? .009 .09 .01 .34
.34
the distance between earth and the sun is ....
149.6 million km
When was the Solar System formed?
5 billion years ago
How long does it take the planet Uranus to complete one orbit around the Sun?
84 years
Compared to terrestrial planets, jovian planets are have... (A) larger diameters (B) higher densities (C) shorter periods of revolution (D) longer periods of rotation
A
If the average distance between Earth and the Sun were doubled, what changes would occur in the Sun's gravitational pull on Earth and Earth's period of revolution? (A) Gravitational pull would decrease and period of revolution would increase (B) Gravitational pull would decrease and period of revolution would decrease (C) Gravitational pull would decrease and period of revolution would increase (D) Gravitational pull would increase and period of revolution would decrease
A
Which planet has the least distance between the two foci of its elliptical orbit? (A) Venus (B) Earth (C) Mars (D) Jupiter
A
According the the reference table "Solar System Data", which planet's orbit would most closely resemble a circle? (A) Mercury (B) Venus (C) Saturn (D)Pluto
B
Compared to Jovian planets, terrestrial planets have... (A) less mass and are less dense (B) less mass and are more dense (C) more mass and are less dense (D) more mass and are more dense
B
The actual shape of Earth's orbit around the Sun is best described as... (A) a very eccentric ellipse (B) a slightly eccentric ellipse (C) an oblate sphere (D) a perfect cirlce
B
Which two characteristics do all Jovian planets have in common? (A) small diameters and low densities (B) small diameters and high densities (C) larger diameters and low densities (D) larger diameters and high densities
C
Compared to the terrestrial planets, the Jovian planets have... (A) smaller diameters (B) greater average (C) slower rates of rotation (D) longer periods of revolution
D
What does geocentric mean?
Earth is the center of the solar system
the earth is closest to the sun (perihelion) in the month of....
January
the earth is farthest from the sun (aphelion) in the month of...
July
Which planet have the most eccentric orbit? Mercury Venus Neptune Saturn
Mercury
What is the actual geometric shape of Earth's orbit?
Nearly circular
Which planet has an orbit with an eccentricity most similar to the eccentricity of the Moon's orbit around Earth? Earth Jupiter Uranus Saturn
Saturn
Give a season when Earth is at aphelion
Summer
What does heliocentric mean?
The Sun is the center of the solar system
Give the season when Earth is at perihelion
Winter
how to you find the eccentricity of an orbit?
distance between foci ÷ length of major axis
the 'roundness' of an object is considered its..
eccentricity
the orbit of a body in space is...
ellipse
planets orbit the sun in orbits that are _____, regular, cyclical, and predictable motions. The __ is at one focus of the orbit
elliptical, Sun
the closer an object is, the _____ the orbital speed
faster
the force of attraction between all matter in the universe is..
gravity
planets thats have a LONGER period of revolution, and SHORTER period of rotation and are LESS dense are..
jovian planets (Jupiter, Saturn, Uranus, Neptune)
the time it takes for an object in space to orbit another is called...
period of revolution
the time it takes for a planet in space to make one full spin is called...
period of rotation
objects thats are larger and closer together have a ______ gravitational force
stronger
planets that have a SHORTER period of revolution, a LONGER period of rotation and are MORE dense are..
terrestrial planets (Mercury, Venus, Earth, Mars).
Which object is located at one foci of the elliptical orbit of Mars? the Sun Earth Betelgeuse Jupiter
the Sun