Chapter 1 Clicker Questions

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Chapter 1: A Modern View of the Universe

Put these objects in the correct order, from nearest to farthest from Earth:

a) The Moon, Mars, the Sun, the nearest stars, Plutob) The Moon, Mars, the Sun, Pluto, the nearest

starsc) The Moon, the Sun, Mars, Pluto, the nearest starsd) Mars, the Moon, the Sun, the nearest stars, Pluto

a) The Moon, Mars, the Sun, the nearest stars, Plutob) The Moon, Mars, the Sun, Pluto, the nearest

starsc) The Moon, the Sun, Mars, Pluto, the nearest starsd) Mars, the Moon, the Sun, the nearest stars, Pluto

a) The Sun, the Milky Way, Alpha Centauri, Pluto, the Andromeda galaxy

b) The Sun, Alpha Centauri, Pluto, the Andromeda galaxy, the Milky Way

c) The Sun, Pluto, Alpha Centauri, the Milky Way, the Andromeda galaxy

d) Pluto, the Sun, Alpha Centauri, the Milky Way, the Andromeda galaxy

a) The Sun, the Milky Way, Alpha Centauri, Pluto, the Andromeda galaxy

b) The Sun, Alpha Centauri, Pluto, the Andromeda galaxy, the Milky Way

c) The Sun, Pluto, Alpha Centauri, the Milky Way, the Andromeda galaxy

d) Pluto, the Sun, Alpha Centauri, the Milky Way, the Andromeda galaxy

Which is farther, the distance from San Francisco to Los Angeles, or the distance from you to the space shuttle if the shuttle passes directly overhead?

a) San Francisco – LA is furtherb) The space shuttle is further

Which is farther, the distance from San Francisco to Los Angeles, or the distance from you to the space shuttle if the shuttle passes directly overhead?

a) San Francisco – LA is furtherb) The space shuttle is further

In a scale model solar system that used a grapefruit to represent the Sun, how large would the Earth be?

a) The size of an orangeb) The size of a marblec) The size of the point of a ballpoint pend) The size of a bacterium

In a scale model solar system that used a grapefruit to represent the Sun, how large would the Earth be?

a) The size of an orangeb) The size of a marblec) The size of the point of a ballpoint pend) The size of a bacterium

In a scale model solar system that used a grapefruit to represent the Sun, how far away would the Earth be?

a) 6 inchesb) 1 footc) 5 feetd) 50 feete) 1 mile

In a scale model solar system that used a grapefruit to represent the Sun, how far away would the Earth be?

a) 6 inchesb) 1 footc) 5 feetd) 50 feete) 1 mile

In a scale model solar system that used a grapefruit to represent the Sun, how far away would Pluto be?

a) 100 feetb) 200 feetc) 2,000 feetd) 10 miles

In a scale model solar system that used a grapefruit to represent the Sun, how far away would Pluto be?

a) 100 feetb) 200 feetc) 2,000 feetd) 10 miles

In a scale model solar system that used a grapefruit to represent the Sun, how far away should you put another grapefruit to represent Alpha Centauri, the next nearest star?

a) 10 feetb) 1,000 feetc) 1 miled) 10 milese) 2,000 miles

In a scale model solar system that used a grapefruit to represent the Sun, how far away should you put another grapefruit to represent Alpha Centauri, the next nearest star?

a) 10 feetb) 1,000 feetc) 1 miled) 10 milese) 2,000 miles

At the speed of light, how long would it take to go from Earth to the Sun?

a) About a secondb) About a minutec) About 8 minutesd) About a daye) About a year

At the speed of light, how long would it take to go from Earth to the Sun?

a) About a secondb) About a minutec) About 8 minutesd) About a daye) About a year

At the speed of light, how long would it take to reach the nearest star, Alpha Centauri?

a) About a monthb) About a yearc) About 4 yearsd) About 1,000 yearse) About 1,000,000 years

At the speed of light, how long would it take to reach the nearest star, Alpha Centauri?

a) About a monthb) About a yearc) About 4 yearsd) About 1,000 yearse) About 1,000,000 years

About how old is Earth?

a) 6,000 yearsb) 1 million yearsc) 1 billion yearsd) 5 billion yearse) 14 billion years

About how old is Earth?

About how old is the universe?

If the history of the entire universe wascondensed into a single year, Earth wouldhave formed about:

a) The month of Februaryb) The month of Aprilc) The month of Septemberd) December 1e) December 15

If the history of the entire universe wascondensed into a single year, Earth wouldhave formed about:

a) The month of Februaryb) The month of Aprilc) The month of Septemberd) December 1e) December 15

If the history of the entire universe wascondensed into a single year, dinosaurswould have died from the impact of a large meteorite or asteroid about:

a) September 1b) December 1c) December 30d) 9 P.M. December 31

If the history of the entire universe wascondensed into a single year, dinosaurswould have died from the impact of a large meteorite or asteroid about:

a) September 1b) December 1c) December 30d) 9 P.M. December 31

If the history of the entire universe wascondensed into a single year, the earliest humans (hominids) would have appeared about:

a) September 1b) December 1c) December 30d) 9 P.M. December 31 (3 hours before year-end)e) 11:59:30 P.M. December 31 (30 seconds before

year-end)

If the history of the entire universe wascondensed into a single year, the earliest humans (hominids) would have appeared about:

year-end)

If the history of the entire universe wascondensed into a single year, the firstcivilization would have appeared about:

year-end)

If the history of the entire universe wascondensed into a single year, the firstcivilization would have appeared about:

year-end)

Earth rotates on its axis:

a) Once a dayb) Once a weekc) Once a monthd) Once a yeare) Once every 250,000 years

Earth rotates on its axis:

Earth revolves around the Sun:

The Moon revolves around Earth:

Earth revolves around the Milky Way Galaxy:

Why do we not feel or sense the various motions of Earth in the universe?

a) They are not real, they are just models b) They are too slow to sensec) They are nearly uniform, and you can not sense

uniform velocity, only acceleration, which is a change of velocity or direction

Why do we not feel or sense the various motions of Earth in the universe?

a) They are not real, they are just models b) They are too slow to sensec) They are nearly uniform, and you can not sense

uniform velocity, only acceleration, which is a change of velocity or direction

Suppose that, at this very moment, students are studying astronomy on planets in Andromeda. Could they know that we exist here on Earth?a) Yes, because we can see stars in Andromeda, so they can see us

in the Milky Way.b) No, the light from the solar system has not yet reached

Andromeda.c) No, the light from the solar system that has reached

Andromeda came from a time before Earth had formed.d) No, radio signals from terrestrial civilizations have not yet reached

Andromeda.e) Yes, in principle. With sufficiently powerful telescopes, they should

be able to see man-made features such as the Great Wall of China on Earth's surface.

Suppose that, at this very moment, students are studying astronomy on planets in Andromeda. Could they know that we exist here on Earth?a) Yes, because we can see stars in Andromeda, so they can see us

in the Milky Way.b) No, the light from the solar system has not yet reached

Andromeda.c) No, the light from the solar system that has reached

Andromeda came from a time before Earth had formed.d) No, radio signals from terrestrial civilizations have not yet reached

Andromeda.e) Yes, in principle. With sufficiently powerful telescopes, they should

be able to see man-made features such as the Great Wall of China on Earth's surface.

The phrase, "The Red Sox haven't won the World Series in light-years" doesn't make sense because

a) A light-year is a unit of distance, not time.b) A light-year is much greater than a century.c) The Earth is only one light-year old.d) The Red Sox won the World Series in 2003.

The phrase, "The Red Sox haven't won the World Series in light-years" doesn't make sense because

a) A light-year is a unit of distance, not time.b) A light-year is much greater than a century.c) The Earth is only one light-year old.d) The Red Sox won the World Series in 2003.

One difference between the terms solar system and galaxy is that:

a) the solar system contains only one star but the galaxy contains many billions.

b) the solar system contains planets, but the galaxy does not.

c) other galaxies are rare, but other solar systems are common.

d) other solar systems are rare, but other galaxies are common.

One difference between the terms solar system and galaxy is that:

a) the solar system contains only one star but the galaxy contains many billions.

b) the solar system contains planets, but the galaxy does not.

c) other galaxies are rare, but other solar systems are common.

d) other solar systems are rare, but other galaxies are common.

True or False?: NASA soon plans to launch a spacecraft that will leave the Milky Way Galaxy to take a photograph of the galaxy from the outside. a) True, the spacecraft will be able to tell us the size and shape of the

Milky Way.b) False, but it would be a good idea to do so.c) False, even a spacecraft that moved close to the speed of

light would take tens of thousands of years to get to a good vantage point.

d) False, as the Sun and Earth move through the galaxy, we will be able to take a photograph from a different perspective.

e) False, several NASA spacecrafts have already left the solar system on their way out of the galaxy.

True or False?: NASA soon plans to launch a spacecraft that will leave the Milky Way Galaxy to take a photograph of the galaxy from the outside. a) True, the spacecraft will be able to tell us the size and shape of the

Milky Way.b) False, but it would be a good idea to do so.c) False, even a spacecraft that moved close to the speed of

light would take tens of thousands of years to get to a good vantage point.

d) False, as the Sun and Earth move through the galaxy, we will be able to take a photograph from a different perspective.

e) False, several NASA spacecrafts have already left the solar system on their way out of the galaxy.

The observable universe is the same size today as it was a few billion years ago.

a) Yes, the universe does not gain or lose mass or energy.b) Yes, although the universe continues to expand, what we

can see - the observable universe - stays the same size.c) No, we can see light from more distant parts of the

universe today than we could have seen a few billion years ago.

d) No, the observable universe is smaller today than it was a few billion years ago.

e) This question doesn't make sense because the Big Bang only happened about 1.4 billion years ago.

The observable universe is the same size today as it was a few billion years ago.

a) Yes, the universe does not gain or lose mass or energy.b) Yes, although the universe continues to expand, what we

can see - the observable universe - stays the same size.c) No, we can see light from more distant parts of the

universe today than we could have seen a few billion years ago.

d) No, the observable universe is smaller today than it was a few billion years ago.

e) This question doesn't make sense because the Big Bang only happened about 1.4 billion years ago.

Because nearly all galaxies are moving away from us, we must be located at the center of the universe.

a) Yes, it is impossible not to be at the center and have everything else move away from us.

b) Yes, this was the astonishing discovery made by Hubble in the 1920s.

c) Yes, if we were not at the center, our solar system would not survive the gravitational tug from other galaxies.

d) No, the center of the universe is at the center of our galaxy.e) No, everything moves away from everything else in an

expanding universe and there is no unique center.

Because nearly all galaxies are moving away from us, we must be located at the center of the universe.

a) Yes, it is impossible not to be at the center and have everything else move away from us.

b) Yes, this was the astonishing discovery made by Hubble in the 1920s.

c) Yes, if we were not at the center, our solar system would not survive the gravitational tug from other galaxies.

d) No, the center of the universe is at the center of our galaxy.e) No, everything moves away from everything else in an

expanding universe and there is no unique center.

Which of the following would not make sense as a unit of distance?

a) Light-hour.b) Light-minute.c) Light-day.d) Light-meter.

Which of the following would not make sense as a unit of distance?

a) Light-hour.b) Light-minute.c) Light-day.d) Light-meter.

Chapter 1 Clicker Questions

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