The Universe/Photosynthesis Exam Review

Front

What does the strength of the force of gravity depend on?

Back

The masses of the objects and the distance between them.

Front

What type of galaxy is the Milky Way?

Back

A spiral galaxy.

Front

What process helps form stars, planets, and solar systems by gathering smaller pieces together?

Back

Accretion.

Front

What does a heliocentric solar system mean?

Back

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

Front

Why would a person weigh less on the Moon than on Earth?

Back

The Moon has less mass and therefore less gravity.

Front

What is the definition of gravity?

Back

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

Front

What is a quasar?

Back

A highly luminous object powered by a supermassive black hole at the center of a galaxy.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the difference between a spiral galaxy and an elliptical galaxy?

Back

A spiral galaxy has a flat, rotating disk with arms, while an elliptical galaxy is more rounded and lacks the distinct structure of spiral arms.

Front

What is the role of gravity in the formation of the universe?

Back

Gravity pulls matter together to form stars, planets, and galaxies.