Properties of Objects in the Solar System

Front

What do planetesimals do in the formation of planets?

Back

They keep colliding and sticking together.

Front

What force holds the planets in their orbits around the sun?

Back

Gravity.

Front

Why would a person weigh more on Jupiter than on Earth?

Back

Because Jupiter has more mass, and therefore more gravity.

Front

What is the name of the model that places the Earth at the center of the universe?

Back

Geocentric Model.

Front

Why would your weight on Mars be less than half of your weight on Earth?

Back

Because Mars has a smaller mass, and therefore a smaller gravitational pull than on Earth.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, depending on their masses.

Front

What is the Heliocentric Model?

Back

A model of the solar system where the Sun is at the center and planets orbit around it.

Front

What is mass?

Back

The amount of matter in an object, which affects its weight.

Front

How does distance from the Sun affect gravitational pull?

Back

The farther an object is from the Sun, the weaker the gravitational pull it experiences.

Front

What is the difference between weight and mass?

Back

Weight is the force of gravity on an object, while mass is the amount of matter in the object.