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- 1. Multiple Choice
What is the IAU?
International Astronomical Union
Iowa-Altoona University
International Astrological Interpretation
Internal Astronomy Units
- 2. Multiple Choice
Why was the Astronomical System of Units developed?
Because astronomers hated the Imperial measurements
So scientists can feel special
Standard measurements were too small to effectively measure space objects
Because scientists are incredibly lazy and the ASU is easy
- 3. Drop Down
THe Astronomical System of Units measures three things. (a) (b) (c)
TimeMassDistanceWeightDensityAngleVolume - 4. Multiple Choice
This standard measurement is 86,400 seconds long and is the time it takes for Earth to rotate once on its axis
Year
Month
Week
Day
- 5. Multiple Choice
It takes Neptune 165 of these to revolve around the Sun, but it only takes Earth one of these to complete a revolution around the Sun.
Decade
Year
Month
Century
- 6. Match
Match the following time measurement to its converted length
Fine decay of a Caseium-133 atom
Month
29.5 days
Year
365.25 days
Day
86,400 seconds
Second
- 7. Match
Match the following distance measurements to what they measure
Anything further than the solar system
Kilometers
Near-Earth Objects
Lunar distance
Orbiting objects like satellites
Astronomical Unit
Solar system objects
Light-year
- 8. Multiple Choice
Solar Mass
Earth Mass
Lunar Mass
Jovian Mass
- 9. Multiple Choice
You've discovered a rocky exoplanet! Which unit of measurement should you use to compare its mass?
Jovian Mass
Earth Mass
Boston Mass
Solar Mass
- 10. Multiple Choice
Gas and Ice Giants are generally FAR larger than their rocky cousins. Which mass would you use to measure them?
Elsa Mass
Solar Mass
Earth Mass
Jovian Mass
- 11. Drag and Drop
The Sun is (a) times more massive than Jupiter, and (b) times more massive than Earth.
1,048332,950456,1251,00051,987450,000384,400 - 12. Multiple Choice
A light-year is a measurement of...
Time
Mass
Distance
Density
- 13. Multiple Choice
About how far - in kilometers - is an AU?
150 million
At least 3
384,000
95 trillion
- 14. Match
Match the mass equivalence with what it measures
Gas & Ice Giants
Solar Mass
Stars and other massive objects
Earth Mass
Rocky planets
Jovian Mass
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