Astronomy 1

Which two characteristics do all Jovian planets have

in common?

• large diameters and low densities

• large diameters and high densities

• small diameters and low densities

• small diameters and high densities

Which statement best describes the geocentric model

of our solar system?

• The Earth is located at the center of the model

• The Sun is located at the center of the model.

• All planets revolve around the Sun.

• All planets except the Earth revolve around the Sun.

Base your answer to the following question on the diagram below and on your knowledge of Earth

science. The diagram represents Earth in its orbit around the Sun. Locations A through D represent four

positions of Earth in its orbit. Earth is closest to the Sun (perihelion) at position A, and farthest from

the Sun (aphelion) at position C.

At all four positions, the northern end of Earth's axis points toward

• Betelgeuse

• the Sun

• the Moon

• Polaris

Planets that are closest to the Sun are identified as

• low-density Jovian

• low-density terrestrial

• high-density terrestrial

• high-density Jovian

Compared to the other planets in our solar system, Jupiter, Saturn, and Neptune have

• greater eccentricities

• shorter periods of revolution

• greater densities

• shorter periods of rotation

The model below shows the apparent path of the Sun

as seen by an observer in New York State on the first

day of one of the four seasons.

This apparent path of the Sun was observed on the first day of

• fall

• winter

• summer

• spring

One factor responsible for the strength of gravitational attraction between a planet and the Sun is the

• degree of tilt of the planet's axis

• planet's period of rotation

• amount of insolation given off by the Sun

• distance between the planet and the Sun

Which event takes the most time?

• one revolution of Earth around the Sun

• one revolution of Venus around the Sun

• one rotation of the Moon on its axis

• one rotation of Venus on its axis

The best evidence of Earth's rotation is provided by the

• Moon phases and global warming

• Moon phases and Coriolis effect

• Foucault pendulum and Coriolis effect

• Foucault pendulum and global warming

About how often does the moon revolve around the earth?

• about a year
• about a month
• about a week
• about a day