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Unit 4 Earth in the Solar System Review Flashcards | StudBud
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Unit 4 Earth in the Solar System Review
Unit 4 Earth in the Solar System Review
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Review of our place in the solar system.
Flashcards
19 cards
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Practice quiz
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Questions
19
Answers
1
Where does about 99% of all matter contained in the solar nebula exist?
Sun
Planets
Asteroids
Space
2
What are small bodies that orbit planets called?
Planetesimals
Moons
Comets
Protoplanets
3
Which law describes the speed at which objects travel at different points in their orbit?
law of areas
law of eccentricity
law of ellipses
law of periods
4
Kepler's 3rd law compares the average distance of a planet from the sun and what other property
gravitational pull
orbital period
temperature
inertia
5
What separates the outer planets from the inner planets?
asteroid belt
large magnetic field
the Great Red Spot
Kuiper belt
6
What happens to the orbital velocity as a planet gets closer to the sun?
It decreases
It increases
It varies depending on the current cycle of the sun
It remains the same
7
If the axial tilt of the Earth would increase, how would winters change?
Winters would be colder
Winters would be shorter
Winters would be longer
Winters would be hotter
8
If the Earth's orbit were more circular, what would happen to the amount of solar energy ?
solar energy received would increase
solar energy received would decrease
solar energy received would decrease only at high latitudes
There would be no effect
9
What are the northern and southern lights?
auroras
solar flares
prominences
coronas
10
Where did the materials that formed Earth come from?
Oort cloud
solar nebula
Crab nebula
remnants of a black hole
11
The force of attraction between two objects depends on the mass of the two objects and _______.
size of each object
the magnetic field of each object
the distance between the objects
the composition of each object
12
What do the forces of gravity between the Earth and the moon cause?
solar eclipse
lunar eclipse
orbits
tides
13
Which statement describes the motion of planets in their orbits around the sun?
Those with greater mass move slower
Those farther from the sun move slower
Those with greater mass move faster
Those farther from the sun move faster
14
What are small bodies from which planets originated during the formation of the solar system?
comets
asteroids
planetesimals
protoplanets
15
In what way is Earth like the other inner planets?
it revolves around the sun in 24 hours or less
relatively high density
liquid water on its surface
mostly hydrogen and helium core
16
Why do stars appear to move in the sky?
the stars are revolving around Earth
galaxies are forming
Earth is moving
the universe is expanding
17
What is most of the sun's energy a result of?
nuclear fission
nuclear fusion
coronal mass ejections
chemical reactions
18
According the Kepler's 1st law, the orbit of a planet is an ellipse with what object at a focus
its moon
the galactic center
its sun
its center
19
What causes the seasonal changes in climate on Earth?
The side that tilts toward the sun experiences summer
Summer on the side that faces the sun & winter on the other
Earth is closer to the sun in summer and farther in winter
One side is much closer to the sun so it experiences summer