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Option 3 : Identification of the direction of gravitational force between the sun, the earth and the moon
Solar eclipse formation - While going round the earth if the moon is strictly in the same straight line between the sun and the earth, its shadow will fall on the earth’s surface. People in the shaded region will observe an eclipse of the sun, the moon in such a position will appear to be a new moon as seen from the earth.
Few students might not understand this if they lack spatial intelligence:
- Depiction of the three-dimensional phenomenon is two - dimensions. This means a diagram of the three-dimensional phenomenon is drawn in 2D by which all facts are assumed and the teacher tries to explain it to students.
- Understanding of the relative distances between the sun, the earth, and the moon. By seeing the diagram one can predict the relative distance between given celestial bodies. Students can easily observe that the sun is at a farther distance from Earth as compared to Moon.
- Understanding the relative sizes of the sun, the earth, and the moon, As seeing the diagram one can predict the relative sizes of the given celestial bodies. Students can easily observe that the sun is the biggest of the three.
Thus, when a teacher explains the formation of the solar eclipse from a textbook diagram he did not find difficulty in the interpretation of Identification of the direction of the gravitational force(gravitational force is defined as the force of attraction between all masses in the universe) between the sun, the earth, and the moon as gravitational force is always acts toward the center of the object.