Gravity & Our Solar System

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 are the three essential elements Astrobiologists look for when searching for life beyond Earth?

Back

Liquid water, an oxygen-containing atmosphere, and an energy source.

Front

Why is there no life on the moon despite being in the habitable zone?

Back

The moon lacks an atmosphere, has no water, and is exposed to solar radiation.

Front

How does your weight on the moon compare to your weight on Earth?

Back

You weigh less on the moon due to its weaker gravitational pull.

Front

What is the composition of Earth's atmosphere?

Back

Earth's atmosphere is composed of approximately 79% Nitrogen, 20% Oxygen, and 1% other gases.

Front

What do we call the path an object takes when it travels around another object in space?

Back

This path is called an orbit.

Front

What is the habitable zone?

Back

The habitable zone is the region around a star where conditions may be suitable for life, particularly the presence of liquid water.

Front

What is the role of an atmosphere in supporting life?

Back

An atmosphere provides essential gases, protects from harmful radiation, and helps regulate temperature.

Front

What is the difference between mass and weight?

Back

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

Front

What is the significance of liquid water in the search for extraterrestrial life?

Back

Liquid water is essential for life as we know it, serving as a solvent for biochemical reactions.