Question 1

Nuclear reactions in the sun's interior convert

Accepted Answer

A) hydrogen into helium. 
B) helium into hydrogen. 
C) carbon into nitrogen. 
D) uranium into plutonium. 
A) hydrogen into helium. 
B) helium into hydrogen. 
C) carbon into nitrogen. 
D) uranium into plutonium.

Question 2

The earth's magnetic field influences

Accepted Answer

A) comets. 
B) meteoroids. 
C) eclipses. 
D) auroras. 
A) comets. 
B) meteoroids. 
C) eclipses. 
D) auroras.

Question 3

The main sequence on the HR diagram includes

Accepted Answer

A) the sun. 
B) white dwarfs. 
C) red giants. 
D) pulsars. 
A) the sun. 
B) white dwarfs. 
C) red giants. 
D) pulsars.

Question 4

The two chief elements in the sun are

Accepted Answer

A) hydrogen and helium. 
B) hydrogen and oxygen. 
C) oxygen and nitrogen. 
D) carbon and iron. 
A) hydrogen and helium. 
B) hydrogen and oxygen. 
C) oxygen and nitrogen. 
D) carbon and iron.

Question 5

There is a surprisingly small variation among stellar

Accepted Answer

A) temperatures. 
B) diameters. 
C) densities. 
D) masses. 
A) temperatures. 
B) diameters. 
C) densities. 
D) masses.

Question 6

The heaviest elements on the earth were produced in

Accepted Answer

A) the earth's interior. 
B) the sun's interior. 
C) supernova explosions. 
D) black holes. 
A) the earth's interior. 
B) the sun's interior. 
C) supernova explosions. 
D) black holes.

Question 7

Brown dwarfs are

Accepted Answer

A) visible to the naked eye. 
B) present in the solar system. 
C) relatively rare. 
D) relatively common. 
A) visible to the naked eye. 
B) present in the solar system. 
C) relatively rare. 
D) relatively common.

Question 8

The least common of the following are

Accepted Answer

A) white dwarfs. 
B) red dwarfs. 
C) brown dwarfs. 
D) black dwarfs. 
A) white dwarfs. 
B) red dwarfs. 
C) brown dwarfs. 
D) black dwarfs.

Question 9

The color of a relatively hot star is

Accepted Answer

A) white. 
B) yellow. 
C) blue. 
D) red. 
A) white. 
B) yellow. 
C) blue. 
D) red.

Question 10

Pulsars are unlikely to be

Accepted Answer

A) small in size. 
B) in rapid rotation. 
C) composed largely of neutrons. 
D) members of the main sequence. 
A) small in size. 
B) in rapid rotation. 
C) composed largely of neutrons. 
D) members of the main sequence.

Question 11

The source of the sun's energy is

Accepted Answer

A) radioactivity. 
B) nuclear fission. 
C) nuclear fusion. 
D) combustion. 
A) radioactivity. 
B) nuclear fission. 
C) nuclear fusion. 
D) combustion.

Question 12

The interior of the sun consists of

Accepted Answer

A) liquid hydrogen. 
B) molecules. 
C) neutral atoms. 
D) ions. 
A) liquid hydrogen. 
B) molecules. 
C) neutral atoms. 
D) ions.

Question 13

Advantages of a telescope in a spacecraft do not include

Accepted Answer

A) the absence of an atmosphere to affect light from space. 
B) the absence of background radiation from the earth that may swamp faint signals from space. 
C) less cost. 
D) the ability to see the entire sky. 
A) the absence of an atmosphere to affect light from space. 
B) the absence of background radiation from the earth that may swamp faint signals from space. 
C) less cost. 
D) the ability to see the entire sky.

Nuclear reactions in the sun's interior convert

The earth's magnetic field influences

The main sequence on the HR diagram includes

The two chief elements in the sun are

There is a surprisingly small variation among stellar

The heaviest elements on the earth were produced in

Brown dwarfs are

The least common of the following are

The color of a relatively hot star is

Pulsars are unlikely to be

The source of the sun's energy is

The interior of the sun consists of

Advantages of a telescope in a spacecraft do not include

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Universe

Filters

Exam 18: The Stars

Nuclear reactions in the sun's interior convert

The earth's magnetic field influences

The main sequence on the HR diagram includes

The two chief elements in the sun are

There is a surprisingly small variation among stellar

The heaviest elements on the earth were produced in

Brown dwarfs are

The least common of the following are

The color of a relatively hot star is

Pulsars are unlikely to be

The source of the sun's energy is

The interior of the sun consists of

Advantages of a telescope in a spacecraft do not include

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Universe

Filters