Astronomy Spring Final 2025

A force of attraction between any two objects is called _____________.

• static electricity 
• rotation
• gravity
• orbit

Stars can differ in color. What does this indicate about a star?

• Its age

• Its distance

• Its temperature

• Its size

Answer explanation

The color of a star indicates its temperature. Hotter stars appear blue or white, while cooler stars appear red or orange. Therefore, the color difference directly reflects the star's temperature.

What is the fate of our Sun?

• The Sun will become a red giant and then a white dwarf.
• The Sun will remain a main sequence star indefinitely.
• The Sun will turn into a black hole after its life cycle.
• The Sun will explode as a supernova immediately.

What Era are we currently in? Check out the yellow section.

• Mesozoic

• Cenozoic

• Paleozoic

• Precambrian

It takes Earth _____________ to make one revolution or orbit around the Sun.

• 365 days
• 365 hours
• 28 days
• 24 hours

Which astronomer of antiquity first applied a telescope to astronomical observation?

• Ptolemy
• Galileo Galilei
• Tycho Brahe
• Copernicus

What type of moon is this?

• new moon

• full moon

• waxing gibbous

• waning gibbous

Mammals and Dinosaurs existed on the Earth during some of the same time periods.

• No

• Yes

Scientists who study the solar system and outer space while mostly staying on Earth are called ______________.

• astronomers

• astronauts

Which planet is the largest planet in the solar system and is the fifth planet?

• the sun

• Uranus

• Jupiter

• Earth