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WorksheetsAstronomy Unit Review
Total questions: 30
Worksheet time: 30mins
Name
Class
Date
1.
One complete revolution of the Earth around the sun takes about
a)
one rotation
b)
half a year
c)
one year
d)
one season
2.
At all times 50% of the moon lit up by the sun.
a)
true
b)
false
3.
What type of telescope is pictured above?
a)
reflective
b)
refracting
c)
space
d)
radio
4.
Day and night is caused by the ________ of earth on its axis.
a)
revolution
b)
orbit
c)
rotation
d)
fusion
5.
The color of a star is directly related to its __________.
a)
Absolute Brightness (Luminosity)
b)
Apparent Brightness
c)
Surface Temperature
d)
Core Temperature
6.
This wave has the second highest frequency on the spectrum.
a)
microwaves
b)
visible light
c)
x-rays
d)
gamma ray
7.
Which star is a yellow star that is very dim
a)
Deneb
b)
Van Maanen
c)
Polaris
d)
Alpha Centauri
8.
Which stage is Spica in?
a)
White Dwarf
b)
Main Sequence
c)
Giants
d)
Super Giants
9.
Which star is the coldest?
a)
Alpha Centauri A
b)
Mira
c)
Deneb
d)
Rigel
10.
Which of these stars has the hottest surface?
a)
Red Star
b)
Yellow Star
c)
Orange Star
d)
Blue Star
11.
What does the Big Bang theory suggest?
a)
The universe has always existed.
b)
The Milky Way is the only known galaxy.
c)
The universe is continually expanding.
d)
The universe started as a point and is collapsing towards the center of space.
12.
What does this diagram model?
a)
Solar eclipse
b)
Lunar eclipse
13.
What does this diagram model?
a)
Solar eclipse
b)
Lunar eclipse
14.
What shape are the orbits of most comets?
a)
Circle
b)
Sphere
c)
Ellipse
d)
Parabola
15.
Which term describes a meteoroid that reaches the Earth's surface without burning up completely?
a)
Asteroid
b)
Meteor
c)
Meteorite
d)
Meteo-wrong
16.
Which term describes a bright streak of light that results when a meteoroid burns up in the Earth's atmosphere?
a)
Asteroid
b)
Meteoroid
c)
Meteorite
d)
Meteor
17.
The Earth's axis is tilted _______ degrees.
a)
180
b)
90
c)
45
d)
23.5
18.
When the Northern Axis is pointing away from the Sun, the Northern Hemisphere is in ___________.
a)
Winter
b)
Spring
c)
Summer
d)
Fall
19.
When there is Equal hours of day and night, the Season is ______________.
a)
Winter
b)
Spring or Fall
c)
Summer
d)
Solstice
20.
Which day of the year has the least amount of daylight?
a)
Winter Solstice
b)
Summer Solstice
c)
Autumnal Equinox
d)
Vernal Equinox
21.
What law purposed that all the galaxies are accelerating away from each other.
a)
Pascal's law
b)
Hubble's law
c)
Newton's law
d)
Archimedes' law
22.
Which color has the longest wavelength?
a)
Red
b)
Yellow
c)
Green
d)
Violet
23.
What was the first element to form within the universe?
a)
Hydrogen
b)
Helium
c)
Carbon
d)
Oxygen
24.
A[n] ______________ tide occurs when the sun is at right angles to the line between Earth and the moon.
a)
high
b)
neap
c)
low
d)
spring
25.
Why is the light from distant galaxies red-shifted?
a)
They produce more red light than nearby galaxies.
b)
They are moving away from us.
c)
The longer wavelengths are scattered by the atmosphere.
d)
They are moving toward us.
26.
What two variables keep the planets in their orbits around the sun?
a)
Gravity and magnetism
b)
Inertia and magnetism
c)
Gravity and inertia
d)
Gravity and mass
27.
Our solar system is thought to have formed from ________.
a)
a single atom created by the big bang
b)
leftover gas and dust from an ancient supernova
c)
a cluster of rocks from a super asteroid belt
d)
cosmic background radiation
28.
"A dirty snowball," or "a mass of ice and rock" describes a(n) ___________.
a)
comet
b)
asteroid
c)
meteorite
d)
moon
29.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
30.
Nuclear fusion is...
a)
when two or more elements join together to make a heavier element.
b)
when two elements separate and form heavier elements.
c)
when two elements disappear
d)
that thing that happened to the Hulk
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