Galaxies and Gravity Review

Front

As distance between two objects increases, the pull of gravity:

Back

Decreases.

Front

The force of gravity acting on an object is the object's ______.

Back

weight.

Front

What type of galaxy is characterized by spiral arms?

Back

Spiral.

Front

Astronomical units are used for:

Back

Distances within a solar system.

Front

How many stars are typically found in a galaxy?

Back

Millions or billions.

Front

What is gravity?

Back

A force that attracts two bodies towards each other.

Front

What is the relationship between mass and gravity?

Back

More mass means stronger gravitational pull.

Front

What is the shape of an elliptical galaxy?

Back

An elongated, oval shape.

Front

What is the main component of a spiral galaxy?

Back

Stars, gas, and dust arranged in spiral arms.

Front

What is the difference between weight and mass?

Back

Weight is the force of gravity on an object; mass is the amount of matter in it.