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Astronomy practice

Total questions: 38

Worksheet time: 40mins

Name
Class
Date
1.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
2.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
3.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
4.
Which category is our Sun located in?
a)
White Dwarfs
b)
Supergiants
c)
Main Sequence
d)
Giants
5.

What characteristics are used to classify stars?

a)

Flammability, weight, and reactivity

b)

Temperature/color and brightness

c)

Conductivity, luster, and density

d)

Malleability, distance, and viscoscity

6.

Using the HR diagram, choose the color of Zeta Eridani

a)

blue

b)

white

c)

yellow

d)

red

7.

Which star is hotter than Deneb

a)

Procyon

b)

Sun

c)

Regel

d)

Banard's Star

8.

Which star is considered a main sequence star?

a)

Vega

b)

Betelgeuse

c)

Pollux

d)

Van Maanan's Star

9.
Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?
a)
Betelguse
b)
Sirius B
c)
Procyon B
d)
Barnard's star
10.
A collection of stars, dust, and gas bound together by gravity is...
a)
Universe
b)
Solar System
c)
Planet
d)
Galaxy
11.
The distance that light travels in one year...
a)
Light year
b)
Quantumyear
c)
Stellar-year
d)
1 million kilometers
12.
A large cloud of gas and dust in interstellar space; the predecessor to stars...
a)
Constellation
b)
Black hole
c)
Nebula
d)
Galaxy
13.
What is the graph that shows the relations between a star's surface temperature and absolute magnitude?
a)
H-R Diagram
b)
Star Cluster Map
c)
Einstein's Diagram
d)
Newton's Chart of Stars
14.
The Hertzprung Russell Diagram consists of two axis that are labelled...
a)
Luminosity and Size
b)
Luminosity and Temperature
c)
Luminosity and Age
15.
A Super Giant star will eventually turn into...
a)
a neutron star or a black hole.
b)
a red giant.
c)
a main sequence star.
d)
a white dwarf or a black dwarf.
16.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
17.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
18.
After a supernova of what used to be a blue star with a very large mass, what is left?
a)
white dwarf star
b)
black dwarf star
c)
black hole
d)
white hole
19.

All stars begin their life as a

a)

Main Sequence

b)

Nebula

c)

Protostar

d)

Black Dwarf

20.

The life cycles of stars are determined by their:

a)

mass (size)

b)

color

c)

distance from Earth

d)

how bright they are

21.
A gigantic explosion that causes the death of a large star is called
a)
pulsar
b)
red giant 
c)
supernova
d)
black hole
22.

A ________ is an object so dense with so much gravity that even light cannot escape.

a)

neutron star

b)

white dwarf

c)

black hole

d)

black dwarf

23.

Our sun is in this stage of its life

a)

nebula

b)

red giant

c)

black hole

d)

main sequence star

24.

How many stars are there in our solar system

a)

1

b)

1 billion

c)

1 million

d)

100

25.

When a Red Giant's outer atmosphere drifts away it is now known as:

a)

planetary cloud

b)

White dwarf cloud

c)

planetary nebula

d)

expanding nebula

26.

Main sequence stars are made primarily of which elements?

a)

Hydrogen only

b)

Helium and Carbon

c)

Carbon and Iron

d)

Hydrogen and Helium

27.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
28.
Select the correct order of waves on the EMS 
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
29.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
30.
Which of the following electromagnetic waves is given off as heat? 
a)
Radio Waves
b)
Infrared Rays
c)
Visible Light
d)
Gamma Rays
31.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
32.
The sun and all of the planets and other bodies that travel around it. 
a)
Universe 
b)
Galaxy 
c)
Star
d)
Solar System 
33.
The Milky Way Galaxy is a 
a)
spiral
b)
lenticular
c)
elliptical 
d)
irregular
34.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular 
d)
Irrational
35.
What is not a galaxy?
a)
Optical Galaxy
b)
Spiral Galaxy
c)
Elliptical Galaxy
d)
Irregular Galaxy
36.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
37.
Place these objects in order from smallest to largest.
a)
Planets, solar system, universe, galaxy
b)
Solar system, planets, galaxy, universe
c)
Planets, solar system, galaxy, universe
d)
Galaxy, solar system, planets, universe
38.

The classification of Galaxy is based on its observable characteristics. Which of these characteristics is used to classify galaxies?

a)

shape

b)

temperature

c)

types of forces

d)

chemical elements

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