Astronomy Part 1

The highest and lowest tides are known as the spring tides. When do these tides occur?

• During the new and full moon phases.

• Between the half moon and full moon phases.

• During the new moon and crescent moon phases.

• Between the full and crescent moon phases.

The moon has a stronger influence on Earth's tides than the sun because the moon-

• is denser than the sun

• has more mass than the sun

• is much closer to Earth

• moves much faster relative to Earth

The Sun revolves around the center of:

• The North Star

• The Earth

• The Milky Way Galaxy

• Betelgeuse

Compared to Jovian planets, terrestrial planets have

• larger masses

• larger equatorial diameters

• shorter periods of revolution

• shorter periods of rotation

Which statement best explains why the same side of the Moon is viewed from Earth as the Moon goes through its phases?

• The Moon does not rotate as it revolves around Earth.

• The Moon’s period of rotation equals Earth’s period of rotation.

• The Moon’s period of rotation equals Earth’s period of revolution around the Sun.

• The Moon’s period of rotation equals the Moon’s period of revolution around Earth.

The diagram below shows Earth on a particular day in its orbit around the Sun. The dashed line represents Earth’s axis.

• June 21

• March 21

• September 21

• December 21

Which object in our solar system has the greatest density?

• Jupiter

• Earth

• The moon

• The sun

The average temperature at Earth’s equator is higher than the average temperature at Earth’s South Pole because the South Pole-

• receives less intense insolation.

• receives more infrared radiation.

• has less land area.

• has more cloud cover.

The diagram below shows Earth in its orbit around the Sun. Positions A, B, C, and D represent Earth at the beginning of each season.

At which lettered position of Earth does Virginia experience the first day of summer?

• A

• B

• C

• D

Which arrangement of the Sun, the Moon, and Earth results in the highest high tides, and the lowest low tides on Earth?

• 1

• 2

• 3

• 4