Astronomy Review

Which of the following is a gas giant?

• Saturn

• Mercury

• Earth

• Pluto

The average distance between the Earth and the Sun is called a(n):

• Light-year

• Solarmetre

• Astronomical unit

• Terrestrial unit

Which star is closest to Earth?

• UY Scuti

• Betelgeuse

• Polaris

• Sun

The Moon exerts a gravitational force on the Earth which results in:

• ocean tides

• eclipses

• a leap year

• heat waves

Write 910 000 000 in scientific notation.

• 9.1 x 10⁸

• 910 x 10⁶

• 91 x 10⁶

• 91

Which planet is closest to the Sun?

• Neptune

• Jupiter

• Mars

• Venus

Convert 2.2 LY to km.

• 5.9 x 10¹⁰

• 4 000 000 000

• 2.09 x 10¹³

• 9.62 x 10⁸

Which of the following was evidence from Greek philosophers that the Earth was round?

• Ships sailed off the edge of Earth

• The same stars can be seen from all locations on Earth

• Ships seemed to disappear over the horizon

• Earth's shadow during an eclipse is square-shaped

A space rock that burns up in Earth's atmosphere is called a(n):

• asteroid

• comet

• meteor

• planet

One rotation of Earth gives us the period of:

• one year

• one leap year

• one hour

• day and night