Astronomy Semester Review

Convert 0.00000456 to scientific notation.

• 45.6 x 10^7

• 4.56 x 10^-6

• 4.56 x 10^7

• 45.6 x 10^6

How many sig figs are in the number 40500?

• 1

• 2

• 3

• 5

One parsec is equal to 3.2616 light years. If the star Betelguese is 701 Light Years away, how many parsecs is this?

• 215 Pc

• 2290 Pc

• 121 Pc

• 703 Pc

A branch of science that deals with celestial objects, space, and the physical universe as a whole is known as…

• Astrology

• Astronomy

• Cosmology

• Radiology

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

What is at the center of our solar system?

• A star

• A black hole

• The Sun

• Both a and c

Tags

NGSS.MS-ESS1-1

The Earth’s rotation takes…

• 24 hrs.

• 365 days

• a lightyear

• 31 days

The Earth’s revolution (orbit) takes approximately…

• 24 hrs.

• 365 days

• a lightyear

• 31 days

Tags

NGSS.MS-ESS1-2

Fill in the blank: The ecliptic is tilted ____________________ on the celestial sphere.

• 23.5° from the equator

• 15° from the equator

• 30° from the equator

• 45° from the equator

The set of constellations which lie on the ecliptic are known as the…

• Precession

• Synodic Period

• Zodiac

• Star Cycle

The number of officially recognized constellations is…

• 88

• 32

• 42

• 100