Astronomy Terms Quiz

What is the definition of the word Axis?

• An imaginary line that goes through the center of an object

• A fixed point in space

• A type of coordinate system

• A line that divides a shape into two equal parts

What is the definition of the word Rotation?

• The path an object follows as it revolves around another object

• The increase in size of an object

• The spinning of a planet, moon, or stars around its axis

• An imaginary line that goes through the center of an object

What is the definition of the word Revolution?

• The movement of one object around another

• A sudden change in political power

• A complete turn or cycle

• A violent uprising against authority

What is the definition of the word Constellation?

• Imaginary pictures formed by stars that are used to help identify other stars

• A type of galaxy

• A phase of the moon

• A project we did on Dad's day

How long does it take for the Earth to make one full ROTATION?

• About 24 hours

• 29.5 Days

• a month and a half

• 365 days

How does the Earth's rotation cause night and day?

• By turning the sun on and off

• When the Earth is turned toward the sun, it is day and when it is turned away from the sun, it is night time

• The sun moves from one side of the Earth to the other

• Earths rotation does NOT cause night and day

What is a clue that Earth is moving?

• The stars move around Earth.

• You can feel Earth's movement.

• The seasons change during the year.

• You are moving right along with Earth.

Chen is studying star patterns. He plans to make observations from his bedroom window. He wants to answer the question, "How do stars change their positions in the sky each night?" How can Chen best answer this question?

• Observe a different star at a different time each night.

• Observe the same star at a different time each night.

• Observe a different star at the same time each night.

• Observe the same star at the same time each night.

Why do we see a full moon only once every 29.5 days?

• It takes the moon 29.5 days to rise and set one time.

• It takes Earth 29.5 days to make one rotation on its axis.

• It takes Earth 29.5 days to make one revolution around the moon.

• It takes the moon 29.5 days to make one revolution around Earth.

What does the Earth REVOLVE around?

• Moon

• The Sun

• Stars