Describe the difference between any two methods of heat transfer. Why do we feel hot when we wear black on a sunny day? If we wanted to keep warm on a cooler day, should you wear black or light-colored clothing? Why?What is Newton's law of universal gravitation? What is the force of gravity? Where is it strongest? Is there any gravity on the moon? What is the gravitational force on the moon dependent on? Planets A and B have identical masses but the distance between planet A and the earth is three times the distance between planet B and the earth. How does the weight of an object on A compare to the weight of the object on B?