Astronomy Review Flashcard

Front

Where is our solar system located in the galaxy?

Back

The outer rim of the Milky Way galaxy.

Front

What forms a galaxy?

Back

Galaxies are formed by stars, which are massive celestial bodies made of gas that emit light.

Front

Why does the moon have phases?

Back

The moon has phases because as it revolves around the Earth, the illuminated side is not always visible from Earth.

Front

What would happen to planets without gravity from the Sun?

Back

Without the Sun's gravity, planets would fly off into outer space.

Front

What effect does the equator have on Earth?

Back

The equator receives direct sunlight, making it warmer than other regions.

Front

What is a solar system?

Back

A solar system is a collection of planets and other celestial bodies that orbit a star.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our solar system, composed of billions of stars.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, keeping planets in orbit around stars.

Front

What are the phases of the moon?

Back

The phases of the moon include new moon, crescent, first quarter, gibbous, and full moon.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates light and heat through nuclear fusion.