1-2 Patterns of Earth and Sky

How far above the Earth does space begin?

• 100 miles

• 62 miles

• 200 miles

• 50 miles

Why can't we use the same units to measure distances in space as we do on Earth?

• Because space is too dark

• Because space is too cold

• Because the universe is much bigger than Earth

• Because space has no gravity

How many AU is the Earth from the Sun?

• 1 AU

• 0.5 AU

• 2 AU

• 10 AU

What is an astronomical unit commonly used to measure?

• Distances within our solar system

• Distances between galaxies

• Distances within a city

• Distances between stars in different galaxies

What is the approximate distance in kilometers that 1 AU represents?

• 150 million kilometers

• 100 million kilometers

• 200 million kilometers

• 50 million kilometers

What is the speed of light in space?

• Super slow

• Super fast

• Medium speed

• Variable speed

What unit is not enough to measure the distance of things in space?

• Kilometers

• Miles

• Light-years

• Both A and B