13. a ______ eclipse occurs at a new moon when the moon is directly between the earth and the sun.
a. solar
c. penumbra
b. umbra
d. lunar
14. when we say the moon is \waxing\ what do we mean?
a. the illuminated portion of the moon appears to be increasing.
b. the illuminated portion of the moon appears to be decreasing.
c. the moon is fully illuminated.
d. the moon is completely dark.
15. when we say the moon is \waning\ what do we mean?
a. the illuminated portion of the moon appears to be increasing.
b. the illuminated portion of the moon appears to be decreasing.
c. the moon is fully illuminated.
d. the moon is completely dark.
use the diagram to the right ⇨ answer questions 16 - 17.
16. if position 1 is a new moon & position 5 is a full moon, what would the moon look like from earth at position 7?
a. image of a half - lit moon (left dark, right light)
b. image of a mostly lit moon with a small dark portion on the left
c. image of a full moon
d. image of a mostly dark moon with a small lit portion on the right

Question

13. a ______ eclipse occurs at a new moon when the moon is directly between the earth and the sun.
 a. solar
 c. penumbra
 b. umbra
 d. lunar
14. when we say the moon is \waxing\ what do we mean?
 a. the illuminated portion of the moon appears to be increasing.
 b. the illuminated portion of the moon appears to be decreasing.
 c. the moon is fully illuminated.
 d. the moon is completely dark.
15. when we say the moon is \waning\ what do we mean?
 a. the illuminated portion of the moon appears to be increasing.
 b. the illuminated portion of the moon appears to be decreasing.
 c. the moon is fully illuminated.
 d. the moon is completely dark.
use the diagram to the right ⇨ answer questions 16 - 17.
16. if position 1 is a new moon & position 5 is a full moon, what would the moon look like from earth at position 7?
 a. image of a half - lit moon (left dark, right light)
 b. image of a mostly lit moon with a small dark portion on the left
 c. image of a full moon
 d. image of a mostly dark moon with a small lit portion on the right

Accepted Answer

### Question 13
# Brief Explanations:
A solar eclipse happens during a new moon when the Moon is between Earth and the Sun, blocking the Sun's light. Lunar eclipse is when Earth is between Moon and Sun. Umbra and penumbra are shadow regions, not eclipse types here.
# Answer:
a. solar

### Question 14
# Brief Explanations:
"Waxing" moon means the illuminated part we see from Earth is increasing, moving toward full moon. Waning is decreasing, full is fully lit, dark is new moon.
# Answer:
a. The illuminated portion of the moon appears to be increasing.

### Question 15
# Brief Explanations:
"Waning" moon means the illuminated portion visible from Earth is decreasing, after full moon toward new moon. Waxing is increasing, full is fully lit, dark is new moon.
# Answer:
b. The illuminated portion of the moon appears to be decreasing.

### Question 16
# Brief Explanations:
Position 1: new moon (Moon between Earth and Sun, dark from Earth). Position 5: full moon (Earth between Moon and Sun, fully lit). Position 7: After full moon (position 5), moving toward new moon (position 1), so it's a waning gibbous or waning phase. The left - top image (a) shows a half - lit moon? Wait, no: Position 1 (new), 2 (waxing crescent), 3 (waxing quarter), 4 (waxing gibbous), 5 (full), 6 (waning gibbous), 7 (waning quarter), 8 (waning crescent). Wait, position 7: from Earth, the illuminated part should be decreasing, like the left - top image (a) has the right half dark? Wait, no, the Sun is on the left. So at position 7, the Moon is on the left - top of Earth. The illuminated side is facing the Sun (left), so from Earth, we see the right side dark? Wait, the first image (a) has the right half dark (so left half lit), which would be a waning phase. Wait, position 7: between full (5) and new (1) moving counter - clockwise? Wait, the diagram: Sun on left, Earth in center. Positions 1 (new, left of Earth), 2 (below 1), 3 (below Earth), 4 (right - below Earth), 5 (right of Earth, full), 6 (right - above Earth), 7 (above Earth), 8 (left - above Earth). So position 7: Moon is above Earth, Sun on left. So the illuminated side of Moon is facing left (toward Sun), so from Earth (center), we see the right side of Moon dark, left side lit. The image a shows the right half dark (so left half lit), which matches. Wait, image a: left half lit, right half dark. So that's a waning phase (after full moon, decreasing illuminated part). So the correct image is a.
# Answer:
a (the top - left image)

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Question 13

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