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How many centimeters are there in one kilometer?. QUESTION. 100 1,000 10,000 100,000 1 × 10 6. Scientific notation is used in science because. QUESTION. it makes it easy to write big or small numbers. all astronomical distances are expressed in metric units.

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how many centimeters are there in one kilometer
How many centimeters are there in one kilometer?

QUESTION

  • 100
  • 1,000
  • 10,000
  • 100,000
  • 1×106
scientific notation is used in science because
Scientific notation is used in science because

QUESTION

  • it makes it easy to write big or small numbers.
  • all astronomical distances are expressed in metric units.
  • it makes conversions between units easy.
  • all of the above.
the average distance from earth to the sun is
The average distance from Earth to the Sun is

QUESTION

  • 1 ly
  • 1 million km
  • 1 million miles
  • 1 billion km
  • 150 million km
the sun is
The sun is

QUESTION

  • a star which generates its own energy.
  • 1 AU from Earth.
  • visible by its own light emission.
  • all of the above.
2 9 10 7 is the same as
2.9 × 107 is the same as

QUESTION

  • 2.9 thousand
  • 29 thousand
  • 290 thousand
  • 2.9 million
  • 29 million
slide6
Arrange the following distances in order from smallest to largest.I. kilometerII. light-yearIII. yardIV. Astronomical unit

QUESTION

  • I, II, III, IV
  • IV, III, II, I
  • III, I, IV, II
  • II, I, IV, III
  • III, I, II, IV
slide7
If light takes 8 minutes to travel from the sun to Earth and over 4 hours to travel from the sun to the planet Neptune, what is the distance from the sun to Neptune?

QUESTION

  • 5 AU
  • 30 AU
  • 30 ly
  • 5 ly
  • 0.6 ly
in the diagram below what is the diameter of jupiter
In the diagram below, what is the diameter of Jupiter?

QUESTION

  • About 7.0 × 104 km.
  • About 7.0 × 105 km.
  • About 1.4 × 104 km.
  • About 1.4 × 105 km.
  • About 3.5 × 106 km.
slide9
The speed of light is 3.0 × 105 km/sec, and it takes light 1.3 sec for light to travel from the moon to Earth. From this information, what is the distance to the moon?

QUESTION

  • 390,000 km
  • 230,000 km
  • 3.9 km
  • 2.3 km
  • 4.3 × 105 km
a typical galaxy like our milky way galaxy contains
A typical galaxy like our Milky Way galaxy contains

QUESTION

  • primarily planets.
  • gas only.
  • stars (some with planets), gas and dust.
  • a single star and planets.
  • thousands of superclusters.
the milky way galaxy
The Milky Way Galaxy

QUESTION

  • contains about 100 billion stars.
  • is about 200 light-years in diameter.
  • is the largest known object in the universe.
  • all of the above.
  • 1 and 3.
the milky way galaxy is
The Milky Way Galaxy is

QUESTION

  • a spiral galaxy.
  • part of a cluster of galaxies that contains a few dozen galaxies.
  • about 80,000 light years in diameter.
  • all of the above.
slide13
If the Earth were represented as a basketball (~10 in) and the Moon as a baseball (~3 in) then, to order of magnitude, what size would best represent the diameter of the Sun?

QUESTION

  • 10 ft
  • 100 ft
  • 1000 ft
  • 10000 ft
which sequence is correct when ordered by increasing size
Which sequence is correct when ordered by increasing size?

QUESTION

  • Earth, Solar System, Milky Way Galaxy, clusters of galaxies
  • Solar System, Earth, galaxy clusters, Milky Way Galaxy
  • Earth, Milky Way Galaxy, Solar System, galaxy clusters
  • Galaxy clusters, Solar System, Milky Way Galaxy, Earth
how is a planet different from a star
How is a planet different from a star?

QUESTION

  • Planets are larger than stars.
  • Planets reflect light while stars produce their own light.
  • Stars move faster in the sky than planets.
  • Planets are brighter than stars.
slide16
If the distance from the Sun to the Earth is represented by roughly 15 meters, then the distance from the Earth to the Moon on the same scale would be

QUESTION

  • about 30 meters.
  • about 10 meters.
  • about 1 meter.
  • small than your hand.
slide17
Assume the size of the Sun is represented by a softball with the Earth about 15 meters (150 million km or 8 light minutes) away. Roughly how far away, to scale, would the nearest stars to the Sun be?

QUESTION

  • About the distance between New York and Boston (330 km).
  • 100 meters away.
  • About the distance across the United States from New York to Los Angeles (4300 km).
  • About the distance across 50 football fields (50 x 100 m).
if the distance to the nearest star is 4 2 light years then
If the distance to the nearest star is 4.2 light-years, then

QUESTION

  • the star is 4.2 million AU away.
  • the light we see left the star 4.2 years ago.
  • the star must have formed 4.2 billion years ago.
  • the star must be very young.
  • the star must be very old.
slide19
Assume a 100 yard football field represents the 14 billion year history of the universe with one end as the origin and the other end representing the present. The existence of human beings will extend from _____ to the present “goal line.”

QUESTION

  • the 50 yard line
  • the 5 yard line
  • the one yard line
  • the one inch line
which of these is not a common misconception
Which of these is NOT a common misconception?

QUESTION

  • A light year is a unit of time.
  • Stars look like disks when seen through a telescope.
  • A galaxy is a star plus its planets.
  • All of the above are misconceptions.