Earth's Motions Review

What is the speed at which the entire solar system is moving in the direction of the bright star Vega?

• 40 km/sec

• 10 km/sec

• 30 km/sec

• 20 km/sec

How long does it take for the solar system to traverse the trip around the galaxy?

• 100,000,000 years

• 150,000,000 years

• 200,000,000 years

• 250,000,000 years

Which galactic neighbor is Earth presently approaching?

• The Black Eye Galaxy

• The Great Galaxy in Andromeda

• The Milky Way

• The Sombrero Galaxy

What is the average distance of the moon from Earth?

• 374,401 kilometers

• 362,401 kilometers

• 384,401 kilometers

• 394,401 kilometers

At which point is the moon closest to Earth?

• Zenith

• Nadir

• Apogee

• Perigee

What is the speed of the solar system as it revolves around the galaxy?

• 150 km/sec

• 200 km/sec

• 300 km/sec

• 250 km/sec

What is the name of Earth's natural satellite?

• Venus

• Jupiter

• Moon

• Mars

What causes changes in the appearance of the moon?

• Moon's orbit

• Sun's movement

• Galaxy's motion

• Earth's rotation

At which point is the moon farthest from Earth?

• Zenith

• Perigee

• Nadir

• Apogee

What is the period of the Earth's trip around the sun?

• 500 days

• 365 days

• 400 days

• 450 days