Astronomy Concepts and Questions

What is the main topic of Unit I - Lesson I in the provided material?

• Chemistry

• Astronomy

• Biology

• Geology

Which of the following is a goal related to understanding our position in the universe?

• Identify our place in space

• Learn about plant biology

• Study the history of Earth

• Explore ocean currents

What is the approximate diameter of the Earth?

• About 12,800 km (8,000 miles)

• 15 million km

• 6 billion km

• 1 thousand km

How large is the Sun in diameter?

• 12,000 miles

• 1,392,000 million km

• 6 billion km

• 1 million km

What is the approximate diameter of the Solar System?

A rough estimate for the diameter of our solar system is 200,000 AU, or 30 trillion km (18.6 trillion miles). That's over 3 light years across!

• 15 thousand km

• 12,000 miles

• 15 million km

• 30 trillion km

Which planet is closest to the Sun in the Solar System?

• Mercury

• Earth

• Jupiter

• Neptune

Which planet comes immediately after Earth in the order from the Sun?

• Venus

• Mars

• Jupiter

• Saturn

According to the diagram, which planet has visible rings around it?

• Jupiter

• Saturn

• Uranus

• Neptune

Arrange the following planets in order from the Sun: Earth, Jupiter, Mars.

• Earth, Mars, Jupiter

• Mars, Earth, Jupiter

• Mars, Jupiter, Earth

• Earth, Jupiter, Mars

What is a light year?

• The distance that light travels in one year or about 6 trillion miles (10 trillion km)

• The time it takes for the Earth to orbit the Sun

• The distance from the Earth to the Moon

• The brightness of a star