Gravity

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, responsible for the formation of stars, planets, and galaxies.

Front

What is the role of gravity in the solar system?

Back

Gravity keeps planets in orbit around the sun and moons in orbit around planets.

Front

What is centripetal force?

Back

Centripetal force is the inward force that causes an object to move in a circular path.

Front

What is perihelion?

Back

Perihelion is the point in the orbit of a body that is closest to the sun.

Front

What is aphelion?

Back

Aphelion is the point in the orbit of a body that is farthest from the sun.

Front

What does Kepler's Second Law state?

Back

As a planet gets closer to the sun, its orbit speeds up, and as it gets farther, it slows down.

Front

What is an orbit?

Back

An orbit is the curved path of an object around a star, planet, or moon.

Front

What are solar nebulae?

Back

Solar nebulae are clouds of gas and dust in space that can collapse under gravity to form stars and planets.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

How does gravity affect falling objects?

Back

Gravity causes all objects to fall towards the Earth at the same rate, regardless of their mass.