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Outer Space

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.
Stars differ in all of the following ways except…
a)
size
b)
temperature
c)
color
d)
composition
2.
Of the choices given, the coolest stars are __________; the hottest stars are __________.
a)
yellow; orange
b)
blue; orange
c)
yellow; yellow
d)
red; blue
3.
Our star, the Sun, will likely end its life as a
a)
red giant
b)
black hole
c)
white dwarf
d)
supernova
4.
Scientists collide particles in particle accelerators to
a)
simulate the conditions of the birth of the universe.
b)
simulate nuclear fusion in a star's core.
c)
fuse subatomic particles.
d)
all of these
5.
Stars form 
a)
from a nebula; gravity causes material to collapse until fusion begins.
b)
particles of rock and metal that smash together to form a body that begins nuclear fusion
c)
a supernova explosion that releases material into space.
d)
none of these
6.
The H-R Diagram is a    that shows the relationship between      and   .
a)
Scatter plot; brightness & temperature
b)
Line graph; brightness & star size
c)
Scatter plot; star size & temperature
d)
none of these
7.
Galaxies are
a)
elliptical, spiral or irregular
b)
stationary
c)
made of millions, billions, trillions of stars
d)
none of these
8.
What can't escape a black hole?
a)
mass
b)
matter
c)
light
d)
all of these
9.
The farther away a galaxy, the faster it is moving away from us is called…
a)
Hubble's Law
b)
Big Bang Theory
c)
the Doppler Effect
d)
the law of reverse gravitation
10.
By analyzing the spectrum of light from distant galaxies, astronomers learned that they are
a)
made of different materials
b)
moving away from us
c)
hotter the farther out there are
d)
none of th
11.
How are irregular galaxies' shapes formed?
a)
collisions with other galaxies
b)
gravitational pull from other galaxies
c)
collisions with and gravitational pull from other galaxies
d)
none of these
12.
What type of galaxy is the Milky Way?
a)
elliptical
b)
spiral
c)
irregular
d)
spherical
13.
Open clusters
a)
are stars that formed from the same nebula.
b)
usually contain a small number of stars, like the Seven Sisters.
c)
are only visible through a telescope.
d)
all of these
14.

Scientists believe the fate of the Universe is:

a)

the Universe will continue to expand forever

b)

the Universe will expand, then contract, eventually creating another Big Bang

c)

the Universe will remain stagnant

d)

none of these

15.
The Universe is estimated to be              years old.
a)
13.8 million
b)
13.8 billion
c)
13.8 trillion
d)
13.8 bazillion
16.
A star's color is determined by the temperature at its core.
a)
True
b)
False
17.
Stars have a life cycle.
a)
True
b)
False
18.
A person living in Texas would continue to see the same constellations, in the same location, year-around.
a)
True
b)
False
19.
A neutron star is made almost entirely of neutrons.
a)
True
b)
False
20.
Black holes are so dense, that only light can escape their gravity.
a)
True
b)
False
21.
Galaxies are divided into three types according to their size.
a)
True
b)
False
22.
The study of the Universe is called astrology.
a)
True
b)
False
23.
The Big Bang Theory is the most widely accepted cosmological explanation on how the Universe formed.
a)
True
b)
False
24.
Dark matter can be observed even though it emits no electromagnetic radiation.
a)
True
b)
False
25.
The distant galaxies we can study are all spiral galaxies.
a)
True
b)
False
26.
The energy source for all stars is nuclear fusion.
a)
True
b)
False
27.
Most of the galaxies we see from Earth are dwarf galaxies.
a)
True
b)
False
28.
Giant elliptical galaxies tend to have mostly younger blue stars.
a)
True
b)
False
29.
Every star that we see in the night sky is outside of the Milky Way.
a)
True
b)
False
30.
The x-axis of the H-R Diagram shows temperature increasing as you read from left to right.
a)
True
b)
False
31.

A ___________ is a giant ball of glowing gas at a very, very high temperature

a)

star

b)

galaxy

c)

nebula

d)

all of these

32.

A ____________ explosion contains so much energy that atoms can fuse together to produce gold, silver, and uranium.

a)

nova

b)

supernova

c)

fusion

d)

fission

33.

Light or sound is shifted as an object moves toward or away from an observer. This phenomenon is called ____________ Effect.

a)

Einstein

b)

Hubble

c)

Doppler

d)

All of These

34.

The ____________ contains all the star systems, galaxies, gas and dust, plus all the matter and energy in existence.

a)

galaxy

b)

universe

c)

Milky Way

d)

star system

35.

A system of two stars in a solar system is known as ____________.

a)

binary

b)

binocular

c)

bifrost

d)

binomial

36.

Spiral galaxies have a(n) ____________ in the middle.

a)

arm

b)

bulge

c)

supernovas

d)

all of these

37.

A pattern of stars in the sky is a(n) ____________.

a)

galaxy

b)

cluster

c)

constellation

d)

none of these

38.

__________ clusters are groups of young stars held together by gravity.

a)

bulge

b)

open

c)

closed

d)

globular

39.

____________ a point in which matter is infinitely dense

a)

parallax

b)

black hole

c)

duality

d)

singularity

40.

___________ clusters are spherical groups of old stars held together by gravity.

a)

open

b)

closed

c)

globular

d)

irregular

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