Gravity and the Universe

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What keeps Earth in its orbital path around the Sun?

Back

The gravitational pull of the Sun keeps Earth in its orbital path.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What causes planets to move in a circular orbit around the Sun?

Back

The combination of gravity and inertia causes planets to move in a circular orbit around the Sun.

Front

What galaxy is our solar system part of?

Back

Our solar system is part of the Milky Way Galaxy.

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation about how the universe began, stating that it started from a singular point and has been expanding ever since.

Front

What is a solar system?

Back

A solar system is a collection of celestial bodies, including a star and the planets, moons, asteroids, and comets that orbit it.

Front

What is the role of gravity in the formation of the solar system?

Back

Gravity pulled together dust and gas in space to form the Sun and planets.

Front

What is the current state of the universe's expansion?

Back

The universe is still expanding.

Front

What are the stages of solar system formation?

Back

1. A cloud of interstellar dust collapses. 2. A spinning disk of dust and gas forms. 3. Gravity pulls material to the center, creating the Sun. 4. Pieces of material collide and clump together, forming planets.