Adjusting unity particle / cubes properties

Is there any way to adjust unities particle to simulate "real world"?

I am looking for the following for starters:

• Can I give a real world mass to the particle (and have real life gravity of 9.8 affect them)? And also have an initial start velocity (simulate an explosion)

• Can I make the particle change color at specific intervals in Y axis of unity?

Alternatively, if this is too complicated, I could like to do it with cubes. Give cubes real life mass. For these cubes, I would also like to know how can I set initial velocity (simulate a explosion)

Tutorials where can I learn more about these would also be greatly appreciated

Thanks