Question 1

Cool stars evolve much more quickly than do hot stars.

Accepted Answer

A) True 
 B)False  False

Question 2

Hubble's law states that galaxies are receding from us at a speed that is proportional to their ________.

Accepted Answer

A) distance 
B) orientation 
C) volume 
D) mass 
A) distance 
B) orientation 
C) volume 
D) mass A

Question 3

A star in which light cannot escape because of the immense gravitational pull is called a(n)________.

Accepted Answer

black hole

Question 4

The discovery that the universe appears to be expanding led to a widely accepted theory called ________.

Accepted Answer

A) the Big Bang 
B) Hubble's Law 
C) Einstein's Law 
D) the Doppler effect 
A) the Big Bang 
B) Hubble's Law 
C) Einstein's Law 
D) the Doppler effect

Question 5

The temperature of a red giant increases rapidly because ________.

Accepted Answer

A) exothermic chemical reactions occur 
B) endothermic chemical reactions occur 
C) fusion increases and gives off heat 
D) gravitational energy is converted to heat 
E) friction from the collapse creates heat 
A) exothermic chemical reactions occur 
B) endothermic chemical reactions occur 
C) fusion increases and gives off heat 
D) gravitational energy is converted to heat 
E) friction from the collapse creates heat

Question 6

A Hertzsprung-Russell diagram (H-R Diagram)is a plot of ________.

Accepted Answer

A) size versus brightness 
B) size versus color 
C) color versus brightness 
D) brightness versus temperature 
E) temperature versus color 
A) size versus brightness 
B) size versus color 
C) color versus brightness 
D) brightness versus temperature 
E) temperature versus color

Question 7

Has the Big Bang hypothesis been successfully tested?

Accepted Answer

The answer of Has the Big Bang hypothesis been successfully...

Question 8

Which color stars have the coolest surface temperature?

Accepted Answer

A) red 
B) orange 
C) yellow 
D) blue 
A) red 
B) orange 
C) yellow 
D) blue

Question 9

Dark Energy and Dark Matter are similar in that they both appear to be slowing the expansion of the universe.

Accepted Answer

A) True 
 B)False

Question 10

neutron star supernova white dwarf black hole

Accepted Answer

The answer of neutron star supernova white dwarf black hole...

Question 11

Which main-sequence stars are the most massive?

Accepted Answer

A) red 
B) orange 
C) yellow 
D) blue 
A) red 
B) orange 
C) yellow 
D) blue

Question 12

A star with the same color as another but 100 times brighter must be ________.

Accepted Answer

A) 100 times hotter 
B) 100 times larger 
C) 100 times closer 
D) 100 times colder 
E) none of the above 
A) 100 times hotter 
B) 100 times larger 
C) 100 times closer 
D) 100 times colder 
E) none of the above

Question 13

The Milky Way is classified as an irregular galaxy.

Accepted Answer

A) True 
 B)False

Question 14

The most dense objects known are black holes.

Accepted Answer

A) True 
 B)False

Question 15

A main-sequence star like our sun is expected to be stable for approximately ________.

Accepted Answer

A) 100 billion years 
B) 10 billion years 
C) 1 billion years 
D) 100 million years 
E) 10 million years 
A) 100 billion years 
B) 10 billion years 
C) 1 billion years 
D) 100 million years 
E) 10 million years

Question 16

The name applied to large quantities of interstellar dust and gas is ________.

Accepted Answer

The answer of The name applied to large quantities of...

Question 17

What is a "main sequence star"?

Accepted Answer

A) a star that is aligned with many other,similar colored stars 
B) a star that is in a group of stars with similar ages and sizes 
C) a star that falls in a band in a band on the H-R Diagram with most other stars 
D) a star that is statistically indistinguishable from 90% of all stars 
E) a star that shows the same trend in distance from earth and temperature as many other stars 
A) a star that is aligned with many other,similar colored stars 
B) a star that is in a group of stars with similar ages and sizes 
C) a star that falls in a band in a band on the H-R Diagram with most other stars 
D) a star that is statistically indistinguishable from 90% of all stars 
E) a star that shows the same trend in distance from earth and temperature as many other stars

Question 18

Most galaxies are of this type.

Accepted Answer

The answer of Most galaxies are of this type....

Question 19

Our galaxy is currently absorbing other galaxies.

Accepted Answer

A) True 
 B)False

Question 20

The point in stellar evolution when a star has used up all its fuel and is radiating away its remaining thermal energy as light is the ________ stage.

Accepted Answer

A) black hole 
B) main-sequence star 
C) red giant 
D) white dwarf 
A) black hole 
B) main-sequence star 
C) red giant 
D) white dwarf

Exam 24: Beyond Our Solar System

Cool stars evolve much more quickly than do hot stars.

Hubble's law states that galaxies are receding from us at a speed that is proportional to their ________.

A star in which light cannot escape because of the immense gravitational pull is called a(n)________.

The discovery that the universe appears to be expanding led to a widely accepted theory called ________.

The temperature of a red giant increases rapidly because ________.

A Hertzsprung-Russell diagram (H-R Diagram)is a plot of ________.

Has the Big Bang hypothesis been successfully tested?

Which color stars have the coolest surface temperature?

Dark Energy and Dark Matter are similar in that they both appear to be slowing the expansion of the universe.

neutron star supernova white dwarf black hole

Which main-sequence stars are the most massive?

A star with the same color as another but 100 times brighter must be ________.

The Milky Way is classified as an irregular galaxy.

The most dense objects known are black holes.

A main-sequence star like our sun is expected to be stable for approximately ________.

The name applied to large quantities of interstellar dust and gas is ________.

What is a "main sequence star"?

Most galaxies are of this type.

Our galaxy is currently absorbing other galaxies.

The point in stellar evolution when a star has used up all its fuel and is radiating away its remaining thermal energy as light is the ________ stage.

Introduction to Earth Science

Matter and Minerals

Rocks: Materials of the Solid Earth

Weathering, soil, and Mass Wasting

Running Water and Groundwater

Glaciers, deserts, and Wind

Plate Tectonics: a Scientific Revolution Unfolds

Earthquakes and Earths Interior

Volcanoes and Other Igneous Activity

Crustal Deformation and Mountain Building

Geologic Time

Earths Evolution Through Geologic Time

The Ocean Floor

Ocean Water and Ocean Life

The Dynamic Ocean

The Atmosphere: Composition,structure,and Temperature

Moisture, clouds, and Precipitation

Air Pressure and Wind

Weather Patterns and Severe Weather

World Climates and Global Climate Change

Origin of Modern Astronomy

Touring Our Solar System

Light,astronomical Observations,and the Sun

Filters