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Earth's Role in the Universe Flashcards | StudBud
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Earth's Role in the Universe
Earth's Role in the Universe
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#science #earth #moon #sun #system #gravity
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
The Moon orbits Earth at about one kilometer per second. The Moon is kept in orbit by what?
lunar phases
magnetism
ocean tides
gravity
2
About how many Earth days does it take the Moon to travel around Earth?
27
26
28
30
3
If the Sun is shining the right which positions of the Moon produce spring tides?
the moon on the left
the moons to the right and left
the moon on the top
the moons on the top and bottom
4
The surface gravity of Pluto is the weakest of the nine planets because Pluto _________.
rotates the slowest.
is farthest from the Sun.
has the lowest temperature.
has the smallest mass.
5
The months of the year when the N and S Hemispheres have equal daylight hours are___________.
December and June
March and December
March and September
June and March
6
Which of the following lists is in order from smallest to largest?
solar system --> universe --> galaxy
universe --> solar system --> galaxy
galaxy --> solar system --> universe
solar system-->galaxy--> universe
7
Mercury has extreme surface temps, ranging from 465°C in sunlight to −180°C in darkness. Why?
The planet lacks an atmosphere like Earth's to hold heat.
The planet is heated on only one side.
The planet is too small to hold heat.
The planet reflects heat from its dark side.
8
Which positions of the Moon, Earth & Sun would create the crescent shape at the top?
D
A
B
C
9
Which of the following is a necessary condition for a lunar eclipse to occur?
It must be the beginning of the month.
The Moon must be waxing.
The Moon must be full.
It must be winter in the Northern Hemisphere.
10
Which of the following describes a feature that is shared by Earth and the Moon?
They have nearly the same atmosphere.
They have almost the same gravitational pull.
They are both made of cheese
They have a rocky crust that includes mountains.
11
3. Which diagram shows the relative positions of Earth, Moon, & Sun during a lunar eclipse?
D
A
C
B
12
The next leap year will be 2024. We have a leap year every four years because
the axis of Earth is tilted the most in that year.
the Moon crosses the orbit of the Sun every 28 days
the gravitational pull of the Sun slows Earth's revolution.
the revolution of Earth is not exactly 365 days.
13
Which of the following keeps the planets in our solar system in orbit around the Sun?
atmospheric pressure
electromagnetic energy
thermal energy
gravitational force
14
What season does the S. Hemisphere experience in image F?
fall
summer
winter
spring
15
Solar Eclipses occur when the ____ passes in between the ____ and the ____.
Man, Fridge, Milk
Moon, Sun, Earth
Sun, Earth, Moon
Earth, Moon, Sun
16
15.The pull of gravity on Earth is a direct result of the ___________.
mass of Earth.
magnetic field of Earth.
rotation of Earth on its axis.
weight of Earth’s atmosphere
17
About how many tide cycles do we expect to see on Earth each day?
4
1
6
2
18
Which position of the Moon could cause a solar eclipse?
A
D
C
B
19
Which position is a new moon if the sun is shining on the right?
the moon on the bottom
the moon on the left
the moon on the right
the moon on top
20
Which of the following planets has the shortest orbit around the Sun?
Venus
Earth
Mercury
Mars
21
The movement of a planet in orbit around the sun is also known as its _________.
solstice
axis
revolution
rotation
