According to one legend, Newton was inspired to create his concept of gravity when he was struck on the head by a falling apple. As the legend goes, he looked up at the full moon that evening and wondered why the apple falls down out of the tree, but the Moon doesn't fall down out of the sky. How would you answer this question after reading this section?

According to one legend, Newton was inspired to create his concept of gravity when he was struck on the head by a falling apple. As the legend goes, he looked up at the full moon that evening and wondered why the apple falls down out of the tree, but the Moon doesn't fall down out of the sky. How would you answer this question after reading this section?