yes
Yes of course.
You can unfold it!
I am not entirely sure what you mean by "reversible by itself".An energy transformation is usually NOT entirely reversible. Some energy is wasted in the transformation, and (even though the energy is definitely still somewhere), you may need ADDITIONAL energy to transform it back.
Self locking machine has efficiency less than 50% but reversible machines has efficiency more than 50%
yes
It has a predicate noun: accident.
In North Carolina can one spouse enter the marital home through breaking a window?
yes, a window might break on its own but, with presser from wind or weakness
Jam starts with breaking glass (a window being smashed).
trespasser
True.
progressive is often called continuous. Past progressive/continuous is:past be verb + verb + -ing - was breaking, were breaking,He was breaking the window when I saw him!They were breaking the speed limit.
only if you are on parole or probation. however if the window is for a jewelry store you can get attempted larceny which could be a felony
reversible
It is a chemical change. It keeps its same chemical composition and is in a reversible state. You can remelt it and once again, make glass.
Yes, this change is reversible.