A student creates two models to demonstrate phases of the Moon. The models are shown.
Two diagrams show Earth, the Sun, and the Moon. In the first diagram, Earth is in between the Sun and the Moon. In the second diagram, the Moon is in between Earth and the Sun.
Which moon phases can the models be used to demonstrate?
A.
Model 1 can be used to demonstrate a full moon, and Model 2 can be used to demonstrate a new moon.
B.
Model 1 can be used to demonstrate a new moon, and Model 2 can be used to demonstrate a third quarter moon.
C.
Model 1 can be used to demonstrate a full moon, and Model 2 can be used to demonstrate a waning crescent moon.
D.
Model 1 can be used to demonstrate a first quarter moon, and Model 2 can be used to demonstrate a waxing gibbous moon.
A. Model 1 can be used to demonstrate a full moon, and Model 2 can be used to demonstrate a new moon.
To determine which moon phases the models can be used to demonstrate, we need to understand the positions of the Earth, Moon, and Sun in each diagram.
In the first diagram, Earth is in between the Sun and the Moon. This arrangement is known as a "full moon" because the entire side of the Moon facing the Earth is illuminated by the Sun, giving it a fully lit appearance.
In the second diagram, the Moon is in between Earth and the Sun. This arrangement is known as a "new moon" because the side of the Moon facing the Earth is not illuminated by the Sun and appears dark.
Therefore, based on the information given, we can conclude that Option A is the correct answer:
A. Model 1 can be used to demonstrate a full moon, and Model 2 can be used to demonstrate a new moon.
The correct answer is D. Model 1 can be used to demonstrate a first quarter moon, and Model 2 can be used to demonstrate a waxing gibbous moon.
In the first diagram, where Earth is in between the Sun and the Moon, the sunlight is hitting one-half of the Moon's surface, creating a first quarter moon.
In the second diagram, where the Moon is in between Earth and the Sun, the sunlight is hitting most of the Moon's surface, but not completely, creating a waxing gibbous moon.