Astronomical Unit

Mercury's orbit is 57,900,000 kilometers (km), on average, away from the Sun. Convert that to Astronomical Units (AU). Show your work and cross out the units that cancel.

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NGSS.MS-ESS1-3

Venus' orbit is 108,200,000 kilometers (km), on average, away from the Sun. Convert that to Astronomical Units (AU). Show your work and cross out the units that cancel.

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A.U. =

• 1.5 x 10¹² km

• 9.5 x 10¹² km

• 1.5 x 10⁸ km

• 9.5 x 10⁸ km

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NGSS.MS-ESS1-3

What is an astronomical unit (A.U.)?

• the time it takes light to travel one year

• the distance between the Earth and the Moon

• the distance between the Earth and the Sun

• the distance between the Earth and the Neptune

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NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

What do we use astronomical units to measure?

• distances in our solar system
  

• How far our solar system is from others in our galaxy.
  

• The distances between galaxies. 
  

• The distance from one side of the universe to the other. 

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NGSS.MS-ESS1-3

Which unit of measurement is used to measure distances within our solar system?

• inches

• kilometers

• miles

• Astronomical units

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NGSS.MS-ESS1-3

Astronomical Unit (AU)

• distance from Earth to Sun-used to measure distances within our solar system (ex. distance between Mars and Jupiter)

• distance light travels in one year-used to measure distances outside our solar system (ex. measuring distances between stars/galaxies)

• Theory of early astronomers. Earth is at the center of the universe. The sun and planets would revolve around the Earth.

• Sun is at the center of the solar system.

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FL.SC.8.E.5.1

What is the average distance from the Earth to the Sun in Astronomical Units (AU)?

• 0.5 AU

• 1 AU

• 5 AU

• 10 AU

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NGSS.MS-ESS1-3

Which of the following best describes an Astronomical Unit (AU)?

• The distance light travels in one year

• The average distance from the Earth to the Sun

• The distance from the Earth to the Moon

• The distance from the Sun to the nearest star

Tags

NGSS.MS-ESS1-3

If a planet is 4.5 AU from the Sun, how many kilometers is it approximately? (1 AU = 149,597,870.7 km)

• 673,190,418 km

• 598,391,482 km

• 1,347,380,432 km

• 2,000,000,000 km

Tags

NGSS.MS-ESS1-3