Astronomy/Measurements

What is the following number in standard notation: 4.21 x 10² ?

• 0.0421

• 42.1

• 421

• 4,210

What is the following number in standard notation: 1.23 x 10^-3 ?

• 123

• 0.0123

• 1,230

• 0.00123

What is the following number in scientific notation: 32,000

• 3.2 x 10⁴

• 3.2 x 10⁵

• 3.2 x 10³

• 3.2 x 10⁰⁰⁰

What is the following number in scientific notation: 0.00775

• 7.75 x 10^-3

• 7.75 x 10³

• 77.5 x 10^-4

• 7.7 x 10^-5

The distance light can travel in one year is known as...?

• 15,000 kilometers

• 1 light-year

• 1 Astronomical Unit

• 1 parsec

One light year is equal to:

• 9.5 x 10⁸ km

• 9.5 x 10¹² km

• 1.5 x 10⁸ km

• 1.5 x 10¹² km

If 1 light year is 9.5 x10¹² km, what is 2.5 light years? (rounded)

• 3.8 x 10¹³ km

• 2.38 x 10¹³ km

• 2.38 x 10¹² km

• 3.8 x 10¹² km

Tags

NGSS.MS-ESS1-3

An astronomical unit (AU) is...

• The average distance between the Earth and the Sun

• The average distance between the Sun and Neptune

• The diameter of the sun

• The diameter of the Earth

Tags

NGSS.MS-ESS1-3

1 light year is larger than 1 AU. True or false?

• False

• True

Tags

NGSS.MS-ESS1-3

One AU is equal to:

• 9.5 x 10⁸ km

• 9.5 x 10¹² km

• 1.5 x 10⁸ km

• 1.5 x 10¹² km

Tags

NGSS.MS-ESS1-3