What do the words in this group have in common biology chemistry anatomy nuclear physics?

The words biology, chemistry, anatomy, and nuclear physics are all forms of science. Biology is the study of the inner workings of things, chemistry is the study of the molecular and macro-level of reactions, anatomy is the study of the human body, and nuclear physics is the study of nuclear reactions and states.

Work done = force ×distancebut force = mass ×gravityand gravity = 10m\s force = 2×10 = 20 work done = 20×3 = 60 joules

Because a model would make the investigation easier to understand