Chapter 22 Origin of Modern Astronomy - Chapter Test

Front

The geocentric model of the solar system has the planets and the moon and sun orbiting what?

Back

Earth

Front

What does the heliocentric model of the solar system state?

Back

Earth and the other planets orbit the sun.

Front

Who was the first person to propose a heliocentric model of the universe with earth as a planet?

Back

Copernicus

Front

Which astronomer discovered that the planets orbit the sun in oval-shaped paths called ellipses?

Back

Kepler

Front

Galileo’s most important contribution to astronomy was his

Back

description of the behavior of moving objects.

Front

Isaac Newton was the first person to formulate and test the law of

Back

universal gravitation.

Front

The spinning of Earth on its axis is called

Back

rotation.

Front

What is Earth’s motion in its path around the sun called?

Back

revolution

Front

What is precession?

Back

the slow change in the direction in which Earth’s axis tilts

Front

What causes the moon’s phases?

Back

changes in how much of the sunlit side of the moon faces Earth