Astro 150 - Week 6

How many days does it take our Moon to complete one full orbit of the Earth?

• 7

• 14

• 21

• 28

How long does it take for the Moon to go from its first quarter phase to its third quarter phase?

• one week

• two weeks

• three weeks

• a month

A photographer takes pictures of a tree trunk from five locations (A-E). Based on the picture, the photographer was standing at location ____.

• A

• B

• C

• D

• E

Which orbital position of the Moon (A-E) corresponds to the phase shown as seen from Earth?

• A

• B

• C

• D

• E

Which orbital position of the Moon (A-E) corresponds to the quarter phase shown as seen from Earth?

• A

• B

• C

• D

• E

During the crescent phase, how much of the Moon’s entire surface is illuminated by sunlight?

• none

• less than half

• half

• all

If you were on the Moon, the Earth would _______.

• show no phases

• show phases that match the Moon (e.g., when it is full Moon it is full Earth, etc)

• show phases opposite to the Moon (e.g., when it is full Moon it is new Earth, etc)

The Moon phase shown now is ________, in 2.5 weeks the phase will be _________.

• first quarter, waning crescent

• last quarter, waning crescent

• first quarter, waxing crescent

• last quarter, waxing crescent

You observe a full Moon rising in the east. Which image shown below best represents how the Moon will appear when it sets 12 hours later?

• A

• B

• C

• D

• E

What time is it for the stick figure?

• 6 am (sunrise)

• 6 pm (sunset)

• noon

• midnight