Unit 5 Space REVIEW – 40 Multiple-Choice Questions with Answers

Front

In which part of the Milky Way galaxy is our Sun located?

Back

Orion arm

Front

How far is our solar system from the center of the Milky Way in light years?

Back

28,000 light years

Front

How fast does our region of the Milky Way galaxy spin?

Back

828,000 km/hr

Front

How long does it take the Milky Way to complete one orbit?

Back

230 million years

Front

What is the Sun primarily composed of?

Back

Hydrogen and helium

Front

What process produces light and heat energy in the Sun?

Back

Combustion

Front

What are the three inner layers of the Sun?

Back

Core, radiative zone, convection zone

Front

Which layer of the Sun is visible from Earth?

Back

Photosphere

Front

What is the temperature of the Sun’s corona?

Back

1 million °C

Front

What is the diameter of the Sun?

Back

865,000 miles