Astronomy Quiz

What is the definition of a galaxy?

• A large, round object in space that does not give off light

• A large group of stars and planets held together by gravity

• The measure of how much energy or light a star shines from its surface

• A ball of burning gas in space that gives off light

Which term describes everything that exists, including all matter and energy?

• Solar system

• Star

• Universe

• Moon

What is the role of the sun in our solar system?

• It is a large object that reflects sunlight and orbits a planet

• It is a large, round object in space that does not give off light

• It orbits around Earth, giving it heat, light, and energy

• It is a ball of burning gas in space that gives off light

What does the term "apparent brightness" refer to?

• How bright a star appears to us from a distance

• The measure of how much energy or light a star shines from its surface

• A large group of stars and planets held together by gravity

• A large, round object in space that does not give off light

What is a planet?

• A large group of stars and planets held together by gravity

• A large, round object in space that does not give off light and orbits a star

• A ball of burning gas in space that gives off light

• The measure of how much energy or light a star shines from its surface

How long does it take for light from the Sun to reach Earth?

• 8-8.5 minutes

• 1 hour

• 24 hours

• 1 second

What is the age of the Sun?

• 4.6 billion years

• 13 billion years

• 1 million years

• 100,000 years

What process do plants use to get energy?

• Photosynthesis

• Respiration

• Digestion

• Fermentation

Why do planets orbit the Sun?

• Because they are attracted by the Sun's gravity

• Because they are pushed by solar winds

• Because they are repelled by other stars

• Because they are following the Moon

What happens when half of the Earth is tilted toward the Sun?

• We experience Summer

• We experience Winter

• We experience Spring

• We experience Autumn