10517890
Descrição
Quiz por Rachelle Sappington, atualizado more than 1 year ago
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Criado por Rachelle Sappington
aproximadamente 7 anos atrás
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Questão 1
Questão
Roughly how many Earths would fit inside the Sun?
Responda
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1
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100
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10,000
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1,000,000
Questão 2
Questão
In 1 second, light leaving Los Angeles reaches approximately as far as
Responda
-
San Francisco, about 500 km
-
London, roughly 10,000 km
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the Moon, 384,000 km
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Venus, 45,000,000 km from Earth at closest approach
Questão 3
Questão
If Earth rotated twice as fast as it currently does, but its motion around the Sun stayed the same, then
Responda
-
the night would be twice as long;
-
the night would be half as long
-
the year would be half as long
-
the length of the day would be unchanged
Questão 4
Questão
When a thin crescent of the Moon is visible just before sunrise, the Moon is in its
Responda
-
waxing phase
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new phase
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waning phase
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quarter phase
Questão 5
Questão
If the Moon's orbit were a little longer, solar eclipses would be
Responda
-
more likely to be annular
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more likely to be total
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more frequent
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unchanged in appearance
Questão 6
Questão
Relative to the stars, as seen from Earth, through roughly how many degrees, arc minutes, or arc seconds does the Moon move in 1 hour of time?
Responda
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10 degrees
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30 arc minutes
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1 arc minute
Questão 7
Questão
The Moon lies roughly 384,000 km from Earth, and the Sun lies 150,000,000 km away. If both have the same angular size as seen from Earth, roughly how many times larger than the Moon is the Sun?
Responda
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400
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40
-
10
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4
Questão 8
Questão
The stars in a constellation are physically close to one another.
Responda
- True
- False
Questão 9
Questão
The seasons are caused by the precession of Earth's axis.
Responda
- True
- False
Questão 10
Questão
If the direction of Earth's rotation were reversed, the solar day would be shorter than it is now.
Responda
- True
- False
Questão 11
Questão
The Moon does not rotate.
Responda
- True
- False
Questão 12
Questão
A lunar eclipse can occur only during a full Moon.
Responda
- True
- False
Questão 13
Questão
The angular diameter of an object is inversely proportional to its distance from the observer.
Responda
- True
- False
Questão 14
Questão
Once proved, a theory can never be changed.
Responda
- True
- False
Questão 15
Questão
The [blank_start]universe[blank_end] is the totality of all space, time, matter, and energy.
Responda
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universe
Questão 16
Questão
[blank_start]Astronomy[blank_end] is the study of the universe.
Responda
-
Astronomy
Questão 17
Questão
Planet [blank_start]Earth[blank_end] orbits a star called the [blank_start]Sun[blank_end], near the edge of the [blank_start]Milky[blank_end] [blank_start]Way[blank_end] Galaxy, which is just one among billions of galaxies in the [blank_start]universe[blank_end].
Responda
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Earth
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Sun
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Milky
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Way
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universe
Questão 18
Questão
Early observers grouped the thousands of stars visible to the naked eye into patterns called [blank_start]constellations[blank_end], which they imagined where attached to a vast celestial sphere centered on Earth.
Responda
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constellations
Questão 19
Questão
A [blank_start]celestial[blank_end] [blank_start]sphere[blank_end] is an imaginary sphere surrounding Earth to which all objects in the sky were once considered to be attached.
Responda
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celestial
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sphere
Questão 20
Questão
[blank_start]Constellations[blank_end] have no physical significance, but are still used to label regions of the sky.
Responda
-
Constellations
Questão 21
Questão
The points where Earth's axis of rotation intersects the celestial sphere are called the north and south [blank_start]celestial[blank_end] [blank_start]poles[blank_end].
Responda
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celestial
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poles
Questão 22
Questão
The line where Earth's equatorial plane cuts the celestial sphere is the [blank_start]celestial[blank_end] [blank_start]equator[blank_end].
Responda
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celestial
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equator
Questão 23
Questão
The nightly motion of the stars across the sky is the result of Earth's [blank_start]rotation[blank_end] on it axis.
Responda
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rotation
Questão 24
Questão
A [blank_start]rotation[blank_end] is the spinning motion of a body about on its axis.
Responda
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rotation
Questão 25
Questão
The time from one noon to the next is called a [blank_start]solar[blank_end] day.
Responda
-
solar
Questão 26
Questão
The time between successive risings of any given star is one [blank_start]sidereal[blank_end] day.
Responda
-
sidereal
Questão 27
Questão
Because of Earth's [blank_start]revolution[blank_end] around the Sun, we see different stars at night at different times of the year, and the Sun appears to move relative to the stars.
Responda
-
revolution
Questão 28
Questão
The Sun's apparent yearly path around the celestial sphere (or the plane of Earth's orbit around the Sun) is called the [blank_start]ecliptic[blank_end].
Responda
-
ecliptic
Questão 29
Questão
We experience [blank_start]seasons[blank_end] because Earth's rotation axis is inclined to the ecliptic plane.
Responda
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seasons
Questão 30
Questão
At the [blank_start]summer[blank_end] [blank_start]solstice[blank_end], the Sun is highest in the sky and the length of the day is greatest.
Responda
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summer
-
solstice
Questão 31
Questão
At the vernal and autumnal [blank_start]equinoxes[blank_end], Earth's axis of rotation is perpendicular to the line joining Earth to the Sun, so day and night are of [blank_start]equal[blank_end] length.
Responda
-
equinoxes
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equal
Questão 32
Questão
The interval of time from one vernal [blank_start]equinox[blank_end] to the next is one [blank_start]tropical[blank_end] year.
Responda
-
equinox
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tropical
Questão 33
Questão
[blank_start]Precession[blank_end] is the slow "wobble" of Earth's axis due to the influence of the [blank_start]Moon[blank_end].
Responda
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Precession
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Rotation
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Revolution
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Moon
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Sun
Questão 34
Questão
As a result of [blank_start]precession[blank_end], the [blank_start]sidereal[blank_end] year is slightly longer than the [blank_start]tropical[blank_end] year, and the constellations migrate around the calendar over the course of thousands of years.
Responda
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rotation
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precession
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revolution
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tropical
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sidereal
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tropical
-
sidereal
Questão 35
Questão
The [blank_start]Moon[blank_end] emits no light of its own, but instead shines by reflected sunlight.
Responda
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Moon
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North Star
Questão 36
Questão
As the Moon orbits Earth, we see [blank_start]lunar[blank_end] phases as the amount of the Moon's sunlit face visible to us varies.
Responda
-
lunar
Questão 37
Questão
At [blank_start]new[blank_end] Moon, the Moon and the Sun are in nearly the same part of the sky, and the [blank_start]sunlit[blank_end] side of the Moon is oriented away from us.
Responda
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new
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full
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sunlit
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dark
Questão 38
Questão
At [blank_start]full[blank_end] Moon, the Sun and Moon are in opposite directions, from our perspective.
Responda
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new
-
full
Questão 39
Questão
The time taken for the Moon to complete one orbit relative to the stars is 1 [blank_start]sidereal[blank_end] month. The time needed for the Moon to complete one cycle of phases is 1 [blank_start]synodic[blank_end] month.
Responda
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synodic
-
sidereal
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synodic
-
sidereal
Questão 40
Questão
A [blank_start]lunar[blank_end] eclipse occurs when the Moon enters Earth's shadow.
Responda
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solar
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lunar
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total
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partial
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annular
Questão 41
Questão
A [blank_start]solar[blank_end] eclipse occurs when the Moon passes between Earth and the Sun.
Responda
-
solar
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lunar
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total
-
partial
-
annular
Questão 42
Questão
An eclipse may be [blank_start]total[blank_end] if the body in question (Moon or Sun) is completely obscured, or [blank_start]partial[blank_end] if only a portion of the surface is affected.
Responda
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solar
-
lunar
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total
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partial
-
annular
-
solar
-
lunar
-
total
-
partial
-
annular
Questão 43
Questão
If the Moon happens to be too far from Earth for its disk to completely hide the Sun, an [blank_start]annular[blank_end] eclipse occurs.
Responda
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solar
-
lunar
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total
-
partial
-
annular
Questão 44
Questão
Because the Moon's orbit around Earth is slightly inclined with respect to the [blank_start]ecliptic[blank_end], solar and lunar eclipses do not occur every [blank_start]month[blank_end].
Responda
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ecliptic
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month
Questão 45
Questão
The [blank_start]scientific[blank_end] [blank_start]method[blank_end] is a methodical approach employed by scientists to explore the universe around us in an objective manner.
Responda
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scientific
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method
Questão 46
Questão
A [blank_start]theory[blank_end] is a framework of ideas and assumptions used to explain some set of [blank_start]observations[blank_end] and construct theoretical models that make [blank_start]predictions[blank_end] about the real world. These predictions in turn are [blank_start]amenable[blank_end] to further observational [blank_start]testing[blank_end]. In this way, the theory expands and [blank_start]science[blank_end] advances.
Responda
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theory
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observations
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predictions
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amenable
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testing
-
science
Questão 47
Questão
Observation, theory, and testing are the cornerstones of the [blank_start]scientific[blank_end] [blank_start]method[blank_end].
Responda
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scientific
-
method
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