Question

directions: read the text and study the diagram below. then answer question 5.
a student builds a model based on this diagram. they use foam balls to represent the moon and earth
and a flashlight to represent the sun. the student decides to shine the flashlight at position 2 to complete the model. is
this the best position for the sun in the model? complete the statement below to explain your answer.

1. the diagram above shows a diagram of a model of four phases of the moon as it revolves around the earth. which

number represents the best position for the sun in this model?
position ______ is the best position for the sun in this model because...
(write the number here)

Explanation:

The sun is the source of light for the moon's phases. In the model, the flashlight (representing the sun) should be positioned such that it illuminates the moon (foam ball) to create the correct phase. For the full - moon phase (where the entire face of the moon is lit as seen from Earth), the light source (sun) should be opposite the Earth relative to the moon. Position 4 is the best because when the moon is in the "Full" position, the sun needs to be behind the Earth (from the moon's perspective) to illuminate the entire face of the moon that is visible from Earth.

Answer:

Position 4 is the best position for the sun in this model because when the moon is in the "Full" phase, the sun should be opposite the Earth relative to the moon to fully illuminate the side of the moon facing Earth.