Astronomy Conversions

The distance light can travel in one year is ______________

• 15,000 kilometers

• 1 light-year

• 15 Astronomical Units

• 6,000 miles

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

• inches

• kilometers

• miles

• Astronomical units

A nanometer (nm) is ...

• 1/1000 of a meter

• 1/1,000,000,000

• 1/1,000,000

• 1/100

The speed of light in a vacuum is approximately 0.3Gm/s. What is its speed in meters per second (m/s)

1 Gigameter = 1 x 10⁹ meter

• 3 x 10⁸ m/s

• 3 x 10^-8 m/s

• 6 x 10⁹ m/s

200.0 cm = _?_ km

• 20.00

• 2.000

• 0.002

• 0.02

What is 416 megaseconds is...

• 4.16 x 10⁸ sec

• 4.16 x 10⁹ sec

• 4.16 x 10^-8 sec

• 4.16 x 10^-9sec

What is a LY in AU

• 63,240 AU

• 30,000,000 AU

• 30,000,000 AU

• 3.26 AU

1 pc is equal to

• 100 ly

• 1 x 10⁸ ly

• 2.26 ly

• 3.26 ly

1 Mpc (megaparsec) is equal to

• 1 x 10⁹ pc

• 1 x 10⁶ pc

• 1 x 10¹² pc

• 1 x 10³ pc

1 AU in meters

• 3 x 10⁸ m

• 9.46 x 10¹⁵m

• 1.55 x 10¹¹ m

• 1.25 million m