Astronomy Unit 2 Practice Test

A solar eclipse only happens during a ________ moon.

• New
• Cresent
• Gibbous
• Full

A lunar eclipse only happens during a ________ moon.

• New
• Cresent
• Gibbous
• Full

How many parts does the eclipse shadow have?

• one
• two
• three
• four

What is the central, darker part of a shadow called?

• the umbra
• the penumbra

What is the lighter part of a shadow where light is partially blocked called?

• the umbra
• the penumbra

A lunar eclipse the moon may appear orange or red because.....

• The Sun produces only red light during an eclipse.
• Light from Mars is hitting the Moon during an eclipse.
• The Earth's atmosphere blocks the blue and green light waves, leaving only red.
• The Earth's atmosphere blocks red light, stores it, then shines it on the Moon.

The moon seems to change shape from day to day in a cycle that lasts about a month as it goes through _.

• revolutions
• phases
• rotations
• eclipses

As the moon's shape (lit side) appears to get smaller, we say that the moon is _.

• swelling
• waxing
• waning
• disappearing

Phases of the moon in which the moon (lit side) appears to be getting larger are referred to as _.

• waxing
• waning
• new
• eclipse

Which of the following words describe the phases of the moon?

• none, quarter, half, three quarters, full
• new, crescent, quarter, gibbous, full
• dark, light, half, quarter, blue
• first quarter, second quarter, third quarter, fourth quarter