CORRECT 100%
The way scientists know that a hypothesis in astronomy is a reasonable description of
nature is to
A) take a vote of astronomers around the world
B)look it up in Wikipedia
C)do experiments and observations about the predictions of the hypothesis
D)count how many scientific papers have been written about it
E)consult with the oldest experts in the field - ANSWER C)do experiments and
observations about the predictions of the hypothesis
A light year is
A)the time it takes light travel between the Sun and the furthest planet
Bthe time it takes a beam of light to go completely around the Earth's orbit
Cthe distance that light travels in one year
Dthe distance between the Sun and the next star
Ehow long it takes a Friday afternoon class in college to get finished - ANSWER Cthe
distance that light travels in one year
A star is 230 light years away. The light we see tonight from that star left it
23 years ago
2.3 years ago
230 years ago
one year ago
the time depends on which part of the sky the star is in - ANSWER 230 years ago
The star that provides energy for life on Earth is
Venus
Alpha Centauri
the Moon
the Sun
the Milky Way star - ANSWER The Sun
The location of the Earth in the Milky Way Galaxy is
on the edge of the Galaxy as far from the center as you can measure
this is a trick question: the Earth is not located in the Milky Way Galaxy
a little less than 30,000 LY from the center
something astronomers have not yet measured
in the center of the Galaxy - ANSWER a little less than 30,000 LY from the center
,Even with the best and largest telescopes, we can't see all the stars in the Milky Way
Galaxy, even though these same telescopes can show us other galaxies. Why is that?
dust in the space between stars builds up over large distances and blocks the light of
stars behind the dustier parts of the Milky Way
the Milky Way Galaxy turns too quickly
this is still an unsolved problem in astronomy
starlight isn't able to travel through black space
light pollution interferes with our observations - ANSWER dust in the space between
stars builds up over large distances and blocks the light of stars behind the dustier parts
of the Milky Way
By the term 'universe,' astronomers mean
the system of 200 to 400 billion stars, of which the Sun is one
everything that we can observe
the realm inside the atom
the system of the Sun, its planets and moons, and small pieces of debris that surround
it
the collection of several dozen galaxies, of which the Milky Way is one - ANSWER
everything that we can observe
Which of the following is the Earth NOT located in?
the Local Group of galaxies
The Virgo supercluster
you can't fool me, we are located in all of the above
the solar system
the Milky Way Galaxy - ANSWER you can't fool me, we are located in all of the above
The Astronomical Unit (AU) as defined by astronomers is
the distance between Congress and the White House
a distance of one light year
the average distance between the Earth and the Sun
the time it takes for the Earth to orbit the Sun once
the distance the Earth travels in orbit in one day - ANSWER the average distance
between the Earth and the Sun
,A large body in space that consistently makes its own light (instead of merely reflecting
another body's light) is called
a light year
a moon
a satellite
a star
a planet - ANSWER a star
ou are on a camping trip, far away from city lights. You look up into the dark night sky,
and see lots of stars, some brighter, some dimmer. All the stars you see with your
unaided eye are
just reflections of the Sun from a shiny surface beyond Pluto
in our solar system
in the Milky Way Galaxy
equally close to the Sun
outside the universe - ANSWER in the Milky Way Galaxy
All molecules (like molecules of water or carbon dioxide) are made up of
baby animals that burrow underground
two or more atoms
very small pieces of dust, from the material that lies between the stars
groups of stars
hydrogen - ANSWER two or more atoms
Of these, which is the largest?
The Solar System
Jupiter
The Universe
Earth
The Milky Way Galaxy - ANSWER The universe
Of these which is the closest to us?
Mars
The closest spiral galaxy
The Sun
The Moon
The center of the Milky Way - ANSWER The moon
Let's say we find a star that is located on the points or circles in the sky listed in the
answer choices below. Then, on the same night, we move to a location on Earth that is
some significant distance from our first location. There will now be a different star at or
on:
the celestial south pole
the zenith
, all of these
the celestial equator
the celestial north pole - ANSWER The zenith
The celestial sphere turns once around each day because
the Earth is going around the Sun
the phases of the Moon
everything in the universe turns around the Earth
precession
the planet on which we live is rotating - ANSWER the planet on which we live is rotating
From a city in the U.S., where in the sky would you look to see a star that is not turning
with the motion of the sky in the course of a night?
at the north celestial pole
you can't fool me, all stars appear to turn around the sky from locations in the U.S.
on the celestial equator
at your zenith
on your horizon - ANSWER at the north celestial pole
The Sun's apparent path around the celestial sphere is called
the circumpolar zone
the horizon
the celestial equator
the ecliptic
the celestial hot-zone - ANSWER The ecliptic
The 88 sectors into which astronomers today divide the celestial sphere (the whole sky)
are called:
asterisms
constellations
epicycles
celestial states
zodiacs - ANSWER constellations
Within a constellation, a smaller, recognizable pattern of stars is often called:
an asterism
a cameo
an ecliptic
a zodiac
a Dipper - ANSWER an asterism
The slow tipping of the Earth's axis in a circle with a period of about 26,000 years is
called: