gimme a side of what physical science is. I know there's no shortcuts but it means alot of ev'rything I gotta know. Sho' me.
I have little understanding of what you wrote. When one tries to communicate in non-standard English, the results are unpredictable.
Here is a definition of physical science:
(noun) : any of the natural sciences (as physics, chemistry, and astronomy) that deal primarily with nonliving materials
How do you find the speed of an object?
what are echoes&how do you do them?