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Astronomy Test 1 Review

Total questions: 74

Worksheet time: 1hrs 14mins

Name
Class
Date
1.
A light year is the 
a)
distance that light travels in one year
b)
Speed at which light travels 
2.
What is a galaxy?
a)
A large storm of comets. 
b)
A parallel universe that existed before the Big Bang. 
c)
A collection of stars, dust, and gas bound together by gravity 
d)
Unknown 
3.

Why do we use light years and astronomical units to measure distances in space?

a)

Scientists want to sound smart.

b)

Hubble discovered these units and wanted to use them.

c)

Space is too small to use km, it wouldn't make sense.

d)

Space is too big, vast, enormous to use traditional units, like miles.

4.
What is the name or our spiral galaxy?
a)
Andromeda
b)
Milky Way
c)
Virgo
d)
Triangulum
5.

The theory that the earth is the center of the universe

a)

heliocentric

b)

geocentric

c)

big bang

d)

big crunch

6.

Which two scientists supported the Big Bang Theory

a)

Lemaitre and Galileo

b)

Galileo and Copernicus

c)

Lemaitre and Hubble

d)

Aristotle and Ptolemy

7.

Name this model of the solar system

a)

Big Bang Theory

b)

The Big Crunch

c)

Heliocentric Theory

d)

Geocentric Theory

8.

What is the name of the galaxy we live in?

a)

The Milky Way

b)

Orion's Arm

c)

The Snickers

d)

Heliocentric

9.

What is the name for this model of our Solar System?

a)

Geocentric

b)

Heliocentric

c)

The Big Bang

d)

The Big Crunch

10.

Which two scientists supported the Geocentric Theory?

a)

Aristotle and Ptolemy

b)

Aristotle and Hubble

c)

Copernicus and Galileo

d)

Galileo and Hubble

11.

What scientists were involved in the heliocentric theory?

a)

Galileo and Ptolemy

b)

Ptolemy and Aristotle

c)

Copernicus and Galileo

d)

Copernicus and Aristotle

12.

What type of Galaxy do we live in?

a)

Spiral

b)

Irregular

c)

Regular

d)

Elliptical

13.

What theory states the universe began from a singularity under high temperature and pressure

a)

The Big Crunch

b)

The Singular Theory

c)

The Big Bang

d)

The Universe Theory

14.

True or false, these are in order from smallest to largest: sun, earth, solar system, galaxy, universe

a)

true

b)

false

15.

What theory states that the sun is the center of the universe?

a)

Geocentric Theory

b)

Heliocentric Theory

c)

Big Bang Theory

d)

Center Theory

16.

Which is the correct order from smallest to largest?

a)

The earth, the sun, the galaxy, the universe

b)

the galaxy, the solar system, the sun, the moon

c)

the universe, the galaxy, the solar system, the sun

d)

the sun the earth, the galaxy, the universe

17.
A force of attraction between any two objects is called _____________.
a)
static electricity 
b)
rotation
c)
gravity
d)
orbit
18.
Which of these is the largest object in the solar system?
a)
Orion
b)
Earth
c)
the Sun
d)
Jupiter
19.
What does the Big Bang theory suggest?
a)
The universe was just there
b)
The Milky Way is the only solar system
c)
The universe is continually expanding
d)
The universe is collapsing in toward a single point
20.
Space and all the matter and energy in it.
a)
Space
b)
Solar System 
c)
Universe
d)
Sun
21.
As the mass of a star increases the gravity will _________
a)
increase
b)
decrease
c)
stay the same
22.
As the distance between two objects in space increases the gravity will _______________
a)
increase
b)
decrease
c)
stay the same
23.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
24.

What two things determine the gravity of an object?

a)

mass & weight

b)

mass & distance

c)

density & mass

d)

volume & distance

25.

Inertia refers to _____ (choose all that apply)

a)

the tendency of moving objects to remain in motion

b)

the force which keeps moving objects in motion with a constant velocity

c)

the force that keeps stationary objects at rest

d)

the tendency of stationary objects to remain at rest

26.

Inertia is the tendency of an object to resist a change in its ___________.

a)

temperature

b)

shape

c)

size

d)

motion

27.

The photograph below shows a feature of the universe as seen through a telescope., This feature is best identified as

a)

a galaxy

b)

a star

c)

a planet

d)

a galaxy cluster

28.

Which theory do scientists believe most likely explains the creation of the universe?

a)

Radiation Theory

b)

Butterfly Effect Theory

c)

Big Bang Theory

d)

Red Shift Theory

29.

Over time, scientists have changed their model of our solar system. It has transitioned from

a)

an Earth centered to a Sun centered model

b)

an Sun centered to a Earth centered model

c)

an Sun centered to a Moon centered model

d)

an Moon centered to a Earth centered model

30.

Our solar system is in the Milky Way galaxy. What shape is this galaxy?

a)

rectangular

b)

oval

c)

triangular

d)

spiral

31.

If the four components were ranked from smallest to largest, what would the order be?

a)

solar system, galaxy, planet, universe

b)

universe, galaxy, solar system, planet

c)

planet, solar system, galaxy, universe

d)

planet, galaxy, solar system, universe

32.

Almost everything in the universe orbits around a central object. The planets orbit around the Sun and moons orbit around planets. The force most responsible for these orbits is

a)

inertia

b)

gravity

c)

strong force

d)

electromagnetic

33.

According to the Big Bang Theory, the universe is

a)

depleting

b)

constant

c)

exploding

d)

expanding

34.
Which of the following describes the sun?
a)
an object that is close to Earth
b)
an object that reflects light
c)
the body that orbits Earth
d)
the star at the center of our solar system
35.
Which statement is true?
a)
The sun moves in an orbit around Jupiter.
b)
The sun moves in an orbit around Earth.
c)
The moon moves in an orbit around Earth.
d)
Earth moves in an orbit around the moon.
36.

Which statement best explains why the planets orbit around the Sun?

a)

The Sun exerts the largest gravitational force due to its mass.

b)

The Sun exerts the smallest gravitational force due to its mass.

c)

The Sun exerts the largest gravitational force due to its location.

d)

The Sun exerts the smallest gravitational force due to its location.

37.

What is the study of the moon, stars, and other objects in space?

a)

Science

b)

Astronomy

c)

Physics

d)

Lunar Studies

38.
The Sun’s position in space is best described as the approximate center of
a)
a constellation
b)
our solar system
c)
the Milky Way galaxy
d)
our Universe
39.
The distance light travels in a year.
a)
Light Year
b)
Kilometer
c)
Miles
d)
Light Minute
40.
The most universally accepted scientific theory on the origins of the universe is called the ____ ______ theory.
a)
Multiverse
b)
Big Bang
c)
Big Explosion
d)
Oscillating Universe
41.
How old is our universe?
a)
13.8 thousand years
b)
13.8 million years
c)
13.8 billion years
d)
13.8 trillion years
42.
What were the original two elements in our universe?
a)
Lithium and Carbon
b)
Hydrogen and Neon
c)
Helium and Chlorine
d)
Hydrogen and Helium
43.
Which of the following is the largest?
a)
star
b)
universe
c)
cluter
d)
galaxy
44.
This scientist discovered that the Universe is expanding
a)
Newton
b)
Ptolemy
c)
Galileo
d)
Hubble
45.
______ was known to have said that his work on formulating a theory of gravitation was inspired by watching an apple fall from a tree. A story well publicized to this very day.
a)
Galileo
b)
Hubble
c)
Newton
d)
Ptolemy
46.

A celestial body is __________________________.

a)

A galaxy beyond the Milky Way.

b)

Any asteroid as long as it doesn't hit Earth.

c)

Any planet, asteroid, moon, or star.

d)

Any star found in the constellation Celestor.

47.
The central star in our solar system
a)
Earth
b)
Sun
c)
Northern Star
d)
Moon
48.
  What does "geo-" mean?
a)
Earth
b)
sun
c)
Center
49.
What does "helios" mean?
a)
Earth
b)
center of
c)
sun
d)
moon
50.
What shape is an ellipse?  
a)
An oval shape
b)
A round shape
c)
A circle shape 
d)
Sun, moon and Earth lined up shape
51.
Built a telescope and made discoveries which changed astronomy; discovered 4 moons of Jupiter
a)
Galileo Galilei
b)
Aristotle
c)
William Herschel
d)
Claudius Ptolemy
52.
How far away from The Milky Way is Andromeda (our closest neighbor)?
a)
2.5 million miles
b)
8 minutes
c)
300,000 kilometers
d)
2.5 million light years
53.
As distance between two objects increase the pull of gravity 
a)
Increases
b)
Decreases
c)
Stays the same
54.
What is the SI unit used to measure force? 
a)
pounds 
b)
grams 
c)
newtons 
d)
friction
55.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight 
d)
friction 
56.
Which of the following never changes no matter where in the universe?
a)
weight
b)
force
c)
mass
d)
pounds
57.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
58.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
59.

A person would weigh more on the Sun than on the Earth because . . .

a)

The Sun has more mass, and therefore more gravity

b)

The Sun has less mass, and therefore more gravity

c)

The Sun has more mass, and therefore less gravity

d)

The Sun has less mass and therefore less gravity

60.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
61.
push or pull acting on an object
a)
speed
b)
force
c)
position
d)
mass
62.
True of False?
An object's inertia is effected by its mass.
a)
False
b)
True
63.
What is the tendency of an object to resist a change in motion?
a)
coffee
b)
motion
c)
inertia
d)
gravity
64.
Newton's 1st law is also called....
a)
friction 
b)
inertia
c)
unbalanced forces
d)
Newtons
65.
Because of inertia, a moving object will keep ________.
a)
at rest
b)
moving
c)
in one spot
d)
inertia 
66.
The law of inertia (Newton’s First Law) applies
a)
to both moving and nonmoving objects
b)
only to moving objects
c)
only to objects that are not moving
67.

What is the force that keeps a planet in orbit around the Sun?

a)

Friction

b)

Tension

c)

Gravity

d)

weight

68.

Choose all that apply. Which of the following is required for planets to stay in orbit around the Sun?

a)

Gravity

b)

Weight

c)

Friction

d)

Inertia

69.

What prevents planets from being pulled into and crash into the Sun due to its Gravity?

a)

Gravity

b)

Weight

c)

Friction

d)

Inertia

70.

What prevents planets from drifting off into space and keeps it in the planets in our Solar System?

a)

Gravity

b)

Weight

c)

Friction

d)

Inertia

71.

What would happen to Earth if its inertia stopped?

a)

Earth would continue to orbit in our Solar System normally.

b)

Earth would sit motionless and not moving.

c)

Earth would drift off in space because nothing would hold it in the Solar System.

d)

Earth would move toward the Sun and eventually crash into it.

72.

What would happen to Earth if the Sun's gravity dissappeared?

a)

Earth would continue to orbit in our Solar System normally.

b)

Earth would sit motionless and not moving.

c)

Earth would drift off in space because nothing would hold it in the Solar System.

d)

Earth would move toward the Sun and eventually crash into it.

73.

An elongated circle, like an oval. The shape of the Earth's orbital path.

a)

Axis

b)

Orbit

c)

Hemisphere

d)

Ellipse

74.

A(n) _____ is the curved path of an object around a point/object in space.

a)

orbit

b)

rotation

c)

revolution

d)

phase

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