Solar System Flashcard

Front

What are terrestrial planets?

Back

Terrestrial planets are the four inner planets of the solar system made of solid rock material.

Front

What happens to Earth if the Sun's gravity did not exist?

Back

Earth would travel in a straight line.

Front

Why does Earth not move around the Moon?

Back

Earth does not move around the Moon because it is more massive than the Moon.

Front

What happens to the gravity of a planet as it becomes more massive?

Back

The gravity of the planet increases.

Front

What is the main difference between asteroids and comets?

Back

Asteroids are made of solid rock material, while comets are made of rocks and ice.

Front

What are the four inner planets of the solar system?

Back

Mercury, Venus, Earth, and Mars.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other.

Front

What is the role of the Sun in the solar system?

Back

The Sun's gravity keeps the planets in orbit around it.

Front

What are comets primarily made of?

Back

Comets are primarily made of ice and dust.

Front

What is an asteroid?

Back

An asteroid is a small rocky body that orbits the Sun.