Question

To show hiw Earth revolves around the sun, hold a volleyball 1meter away from a table lamp with its light bulb exposed. Turn the volleyball on its axis, and move in a large circle around the light bulb. In what ways is this model above accurate?

Answer 1

This model accurately represents how the Earth revolves around the sun as both movements involve a rotation on an axis and a larger circular movement around a central point. However, the size and distances involved in the actual planetary system are significantly larger than those represented by a volleyball and a table lamp, so it is important to keep that in mind when using this model for understanding the real world phenomenon.