Question 1

If the distance to the nearest star is 4.2 light years,what can we conclude about the star?

Accepted Answer

A) The star is 4.2 million AU away. 
B) The star's light takes 4.2 years to reach us. 
C) The star must have formed 4.2 billion years ago. 
D) The star must be very young. 
A) The star is 4.2 million AU away. 
B) The star's light takes 4.2 years to reach us. 
C) The star must have formed 4.2 billion years ago. 
D) The star must be very young.

Question 2

A(n)___________________ is the largest known structure in the universe.

Accepted Answer

The answer of A(n)___________________ is the largest known structure in...

Question 3

The numbers 9.81×10⁵ and 981,000 are equivalent.

Accepted Answer

A) True 
 B)False

Question 4

What is the ratio of the diameter of the Sun to the diameter of the Earth?

Accepted Answer

A) 100 : 1 
B) 1000 : 1 
C) 10,000 : 1 
D) 100,000 : 1 
A) 100 : 1 
B) 1000 : 1 
C) 10,000 : 1 
D) 100,000 : 1

Question 5

What is the reason for compressing the history of the universe into a single year in the cosmic calendar?

Accepted Answer

A) to compare astronomical timescales with human experience 
B) to emphasize how old the universe is 
C) to simplify calculations of ages of objects in the universe 
D) to express the distances of objects in light-years 
A) to compare astronomical timescales with human experience 
B) to emphasize how old the universe is 
C) to simplify calculations of ages of objects in the universe 
D) to express the distances of objects in light-years

Question 6

If light takes 8 minutes to travel from the Sun to the Earth and over 4 hours to travel from the Sun to the planet Neptune,what is the distance from the Sun to Neptune?

Accepted Answer

A) 5 Astronomical Units 
B) 30 Astronomical Units 
C) 0.6 light years 
D) 5 light years 
A) 5 Astronomical Units 
B) 30 Astronomical Units 
C) 0.6 light years 
D) 5 light years

Question 7

Describe the difference between a solar system and a galaxy.

Accepted Answer

The answer of Describe the difference between a solar system...

Question 8

The Sun is a star in the Milky Way galaxy.

Accepted Answer

A) True 
 B)False

Question 9

How are planets and stars different?

Accepted Answer

A) Planets are larger than stars. 
B) Planets reflect light, while stars produce their own light. 
C) Stars move across the sky faster than planets. 
D) Planets are brighter than stars. 
A) Planets are larger than stars. 
B) Planets reflect light, while stars produce their own light. 
C) Stars move across the sky faster than planets. 
D) Planets are brighter than stars.

Question 10

Using the cosmic calendar,where the Big Bang happened January 1,in what month did the Milky Way form?

Accepted Answer

A) January 
B) March 
C) August 
D) December 
A) January 
B) March 
C) August 
D) December

Question 11

Why do astronomers measure distances in strange units like astronomical units and light-years?

Accepted Answer

A) these units are more convenient when dealing with large distances 
B) these units are part of the metric system 
C) these units are about the same size as a typical star 
D) these units can more easily be expressed using scientific notation 
A) these units are more convenient when dealing with large distances 
B) these units are part of the metric system 
C) these units are about the same size as a typical star 
D) these units can more easily be expressed using scientific notation

Question 12

The number 52,600,000,000 would be written in scientific notation as ____________________.

Accepted Answer

The answer of The number 52,600,000,000 would be written in...

Question 13

A light year is the distance that light travels in one year.

Accepted Answer

A) True 
 B)False

Question 14

The metric system is a decimal system.

Accepted Answer

A) True 
 B)False

Question 15

A kilometre contains 1 million metres.

Accepted Answer

A) True 
 B)False

Question 16

How long ago did the Big Bang happen?

Accepted Answer

A) 4.5 billion years 
B) 13.7 billion years 
C) 37 billion years 
D) 45 billion years 
A) 4.5 billion years 
B) 13.7 billion years 
C) 37 billion years 
D) 45 billion years

Question 17

How long does it take light to cross the Milky Way galaxy?

Accepted Answer

A) about 8 minutes 
B) about 8 years 
C) about 80,000 years 
D) about 200 million years 
A) about 8 minutes 
B) about 8 years 
C) about 80,000 years 
D) about 200 million years

Question 18

"I live 20 minutes from Centre City." How is this statement similar to giving astronomical distances in light years?

Accepted Answer

The statement "I live 20 minutes from Ce

Question 19

Explain the difference between a light year and the orbital period of the Earth.

Accepted Answer

A light year is a unit of distance, not

Question 20

The name of the average distance from the Earth to the Sun is one ____________________.

Accepted Answer

The answer of The name of the average distance from...

If the distance to the nearest star is 4.2 light years,what can we conclude about the star?

A(n)___________________ is the largest known structure in the universe.

The numbers 9.81×10⁵ and 981,000 are equivalent.

What is the ratio of the diameter of the Sun to the diameter of the Earth?

What is the reason for compressing the history of the universe into a single year in the cosmic calendar?

If light takes 8 minutes to travel from the Sun to the Earth and over 4 hours to travel from the Sun to the planet Neptune,what is the distance from the Sun to Neptune?

Describe the difference between a solar system and a galaxy.

The Sun is a star in the Milky Way galaxy.

How are planets and stars different?

Using the cosmic calendar,where the Big Bang happened January 1,in what month did the Milky Way form?

Why do astronomers measure distances in strange units like astronomical units and light-years?

The number 52,600,000,000 would be written in scientific notation as ____________________.

A light year is the distance that light travels in one year.

The metric system is a decimal system.

A kilometre contains 1 million metres.

How long ago did the Big Bang happen?

How long does it take light to cross the Milky Way galaxy?

"I live 20 minutes from Centre City." How is this statement similar to giving astronomical distances in light years?

Explain the difference between a light year and the orbital period of the Earth.

The name of the average distance from the Earth to the Sun is one ____________________.

User's Guide to the Sky

The Origin of Modern Astronomy

Astronomical Telescopes and Instruments

Sun Light and Sun Atoms

The Family of Stars

The Structure and Formation of Stars

The Deaths of Stars

The Milky Way Galaxy

Galaxies

Cosmology in the 21st Century

The Origin of the Solar System

Comparative Planetology of the Terrestrial Planets

Comparative Planetology of the Jovian Planets

Life on Other Worlds

Filters

Exam 1: The Scale of the Cosmos

If the distance to the nearest star is 4.2 light years,what can we conclude about the star?

A(n)___________________ is the largest known structure in the universe.

The numbers 9.81×10⁵ and 981,000 are equivalent.

What is the ratio of the diameter of the Sun to the diameter of the Earth?

What is the reason for compressing the history of the universe into a single year in the cosmic calendar?

If light takes 8 minutes to travel from the Sun to the Earth and over 4 hours to travel from the Sun to the planet Neptune,what is the distance from the Sun to Neptune?

Describe the difference between a solar system and a galaxy.

The Sun is a star in the Milky Way galaxy.

How are planets and stars different?

Using the cosmic calendar,where the Big Bang happened January 1,in what month did the Milky Way form?

Why do astronomers measure distances in strange units like astronomical units and light-years?

The number 52,600,000,000 would be written in scientific notation as ____________________.

A light year is the distance that light travels in one year.

The metric system is a decimal system.

A kilometre contains 1 million metres.

How long ago did the Big Bang happen?

How long does it take light to cross the Milky Way galaxy?

"I live 20 minutes from Centre City." How is this statement similar to giving astronomical distances in light years?

Explain the difference between a light year and the orbital period of the Earth.

The name of the average distance from the Earth to the Sun is one ____________________.

User's Guide to the Sky

The Origin of Modern Astronomy

Astronomical Telescopes and Instruments

Sun Light and Sun Atoms

The Family of Stars

The Structure and Formation of Stars

The Deaths of Stars

The Milky Way Galaxy

Galaxies

Cosmology in the 21st Century

The Origin of the Solar System

Comparative Planetology of the Terrestrial Planets

Comparative Planetology of the Jovian Planets

Life on Other Worlds

Filters