Geoscience Modern Astronomy Review

Which of the following models included Earth as the center of the universe?

• Geocentric model

• Heliocentric model

• Super model

• Anacentric model

The first modern astronomer to propose a Sun-centered solar system was _________.

• Newton

• Copernicus

• Galileo

• Brahe

According to Kepler's third law, the amount of time it takes for a planet to go around the sun depends on its _______________.

• acceleration curve

• mass

• size

• distance from Sun

Which of the following discoveries is not credited to Galileo Galilei?

• The Sun has sunspots

• Venus has phases, just like the Moon does

• Gravity

• Four of Jupiter's moons

The shape of a planet's orbit is _________.

• elliptical

• irregular

• circular

• parabolic

At its closest position to the Sun, called ____________, Earth is 147 million kilometers (91 million miles) distant.

• aphelion

• perihelion

• declination

• ascension

Three laws of planetary motion were discovered by ________.

• Kepler

• Galileo

• Copernicus

• Brahe

Which of these men formulated the Law of Universal Gravitation?

• Kepler

• Galileo

• Copernicus

• Newton

A total solar eclipse is only possible at ________.

• first quarter

• second quarter

• third quarter

• new moon

Galileo discovered that the Sun has "blemishes," which we call ________.

• auroras

• coronas

• penumbras

• sunspots