Question 1

The interior of the sun is composed of

Accepted Answer

Plasma of atomic nuclei and electrons.

Answer

Liquid nitrogen

Answer

Nickel core

Answer

Iron core

Question 2

Galaxies that are not flattened into disks and do not have spiral arms are called

Accepted Answer

Elliptical galaxies

Answer

Nebular galaxies

Answer

Dwarf galaxies

Answer

Barred elliptical galaxies

Question 3

Disk-like galaxies with spiral arms are divided into which of the following two sub-classes?

Accepted Answer

Normal spirals and barred spirals

Answer

Normal spirals and flat spirals

Answer

Flat spirals and barred spirals

Answer

Loose spirals and flat spirals

Question 4

Direction of the center of the Milky Way is toward this constellation.

Accepted Answer

Sagittarius

Answer

Cepheid variables

Answer

Variable stars

Answer

RR Lyrae variables

Question 5

Stars with periods of pulsations from 1.5 h- 1 day, and on average have the same luminosity

Accepted Answer

RR Lyrae variables

Answer

Sagittarius

Answer

Cepheid variables

Answer

Variable stars

Question 6

Galaxies that do not fit into the spiral or elliptical classifications are called

Accepted Answer

Irregular galaxies

Answer

Hubble galaxies

Answer

Dwarf galaxies

Answer

Barred galaxies

Question 7

Why do sunspots appear dark?

Accepted Answer

They are cooler than their surroundings.

Answer

They are hotter than their surroundings.

Answer

They do not have strong magnetic fields.

Answer

They are holes in the interior of the Sun.

Question 8

Largest star

Accepted Answer

Red giants

Answer

Main sequence

Answer

White dwarfs

Answer

Blue giants

Question 9

The formation of a star begins with gas and dust. The disk shape object at the center is the

Accepted Answer

Protostar

Answer

Nebula

Answer

Pulsar

Answer

Neutron star

Question 10

Some stars come to a violent end. When the core becomes a collapsed stellar remnant— it is a

Accepted Answer

Neutron star

Answer

Protostar

Answer

Nebula

Answer

Pulsar

Question 11

Some neutron stars are unique in that they have a pulsating pattern of light.

Accepted Answer

Pulsar

Answer

Neutron star

Answer

Nebula

Answer

Protostar

Question 12

The formation of a star begins with a cloud of inter-stellar gas and dust called a

Accepted Answer

Nebula

Answer

Protostar

Answer

Pulsar

Answer

Neutron star

Question 13

Star temperature is related to stellar temperatures. Temperature is also related to ?

Accepted Answer

Luminosity and absolute magnitude

Answer

Luminosity and parallax

Answer

Parallax and relative magnitude

Answer

Luminosity and relative magnitude

Question 14

Measurement of the energy output from the surface of a star per second

Accepted Answer

Luminosity

Answer

Apparent magnitude

Answer

Parallax

Answer

Absolute magnitude

Question 15

How bright a star would appear if it were placed at a distance of 10 parsec

Accepted Answer

Absolute magnitude

Answer

Parallax

Answer

Luminosity

Answer

Apparent magnitude

Question 16

One of the most basic observable properties of a star is how bright it appears

Accepted Answer

Apparent magnitude

Answer

Luminosity

Answer

Parallax

Answer

Absolute magnitude

Question 17

When determining distance of stars from Earth, we must account for the fact that we move

Accepted Answer

Parallax

Answer

Luminosity

Answer

Absolute magnitude

Answer

Apparent magnitude

Question 18

Astronomers use 2 units of measure for long distances; a light year and a longer unit called a

Accepted Answer

Parsec

Answer

Relative rotation

Answer

Distant Standard

Answer

Astronomical unit

Question 19

The easiest way to tell that a star is one of a binary pair is to find wavelength shifts called

Accepted Answer

Doppler shifts

Answer

Stellar distances

Answer

Electromagnetic spectrum

Answer

Stellar position

Question 20

Made from densely packed groups of stars that are the same age.

Accepted Answer

Globular clusters

Answer

Galaxy

Answer

Binary stars

Answer

Open clusters

Question 21

When two stars are gravitationally bound together and orbit a common center of mass, they are

Accepted Answer

Binary stars

Answer

Star clusters

Answer

Coronal holes

Answer

Constellations

Question 22

The reason that stars appear to be close together

Accepted Answer

Human eyes cannot distinguish how far or near stars are.

Answer

They are attracted by gravity

Answer

They can only be seen certain times of the year

Answer

They repel each other

Question 23

Groups of stars

Accepted Answer

Constellations

Answer

Hemisphere

Answer

Astrology

Answer

Galaxy

Question 24

The combination of lightweight, atomic nuclei into heavier nuclei

Accepted Answer

Fusion

Answer

Energy

Answer

Fission

Answer

Relativity

Question 25

Arc of gas that is ejected from the chromosphere.  Gas that condenses in corona and falls back

Accepted Answer

Prominence

Answer

Solar flares

Answer

Coronal holes

Answer

Sun spots

Question 26

Dark spots on the surface of the photosphere.

Accepted Answer

Sun spots

Answer

Solar wind

Answer

Coronal holes

Answer

Solar flares

Question 27

Plasma flows outward from the corona at high speeds and forms this

Accepted Answer

Solar Wind

Answer

Corona

Answer

Chromosphere

Answer

Photosphere

Question 28

Visible only during a solar eclipse and appears red

Accepted Answer

Chromosphere

Answer

Solar Wind

Answer

Photosphere

Answer

Corona

Question 29

The innermost layer of the Sun’s atmosphere.

Accepted Answer

Photosphere

Answer

Chromosphere

Answer

Solar Wind

Answer

Corona

Question 30

The outermost layer of the Sun’s atmosphere

Accepted Answer

Corona

Answer

Chromosphere

Answer

Solar Wind

Answer

Photosphere

Related quizzes

Related quizzes