WorksheetsAstronomy, Part 1
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
Definition: A group of stars, dust, and gases held together by gravity.
a)
rotation
b)
perihelion
c)
galaxy
d)
terrestrial planet
2.
Definition: the spinning of a body, such as Earth, about its axis.
a)
rotation
b)
revolution
c)
equinox
d)
solstice
3.
Definition: the motion of one body about another, like Earth around the sun.
a)
rotation
b)
revolution
c)
eccentricity
d)
solstice
4.
Definition: the point in the orbit of a planet where its closest to the sun.
a)
Aphelion
b)
Main sequence
c)
Perihelion
d)
White dwarf
5.
Definition: a measure of how "flat" or how "oval" an orbit is.
a)
Solstice
b)
kilometers
c)
psi
d)
eccentricity
6.
The eccentricity of a perfect circle is ____________.
a)
0
b)
1
c)
1.5
d)
42
7.
The eccentricity of a flat line is ________________.
a)
0
b)
1
c)
1.5
d)
42
8.
Definition: Any of the earth-like planets, including Mercury, Venus, Earth, and Mars.
a)
Jovian planet (gas giant)
b)
moon
c)
Terrestrial planet
d)
Star
9.
Definition: the Jupiter-like planets that have low densities and are made up entirely of gases.
a)
Terrestrial planets
b)
Gas giants (Jovian planets)
c)
stars
d)
comets
10.
Which celestial feature is largest in actual size?
a)
the moon
b)
the Sun
c)
Jupiter
d)
the Milky Way
11.
The Milky Way Galaxy is best described as _________.
a)
elliptical
b)
circular
c)
irregular
d)
spiral
12.
Which star color indicates the hottest star surface temperature?
a)
blue
b)
yellow
c)
white
d)
red
13.
Compared to Neptune, Mercury moves more rapidly in its orbit because Mercury
a)
is larger
b)
is more dense
c)
is closer to the sun
d)
has a more elliptical orbit
14.
What is the formula for eccentricity?
a)
distance between foci / length of major axis
b)
length of major axis / distance between foci
c)
length x width x height
d)
change in field value / time
15.
Which has the longest wavelength?
a)
gamma ray
b)
radio waves
c)
x - ray
d)
visible light
16.
which has the shortest wavelength?
a)
gamma ray
b)
visible light
c)
radio wave
d)
visible light
17.
which is the only wave we can see?
a)
radio waves
b)
gamma rays
c)
visible light
d)
microwaves
18.
The hottest color stars are which color?
a)
blue
b)
white
c)
orange
d)
green
19.
What star do we compare each other star's luminosity (brightness) to?
a)
Betelguse
b)
Rigel
c)
Deneb
d)
the Sun
20.
Compared to Rigel, the Sun is ___________.
a)
more bright
b)
less bright
c)
more massive
100 %
