Are "passive participle" and " Passive voice" the same thing in Modern English?

The following examples from Wikipedia illustrate what is "passive participle"

The bus has gone. (Here gone is an active past participle).

ex_1: The window was broken with a rock. (Here broken is a passive past participle)

Cambridge Dictionary gives these examples

Cambridge University Press published this book. (active)

ex_2: This book was published by Cambridge University Press. (passive)

I can't see the difference between ex_1 and ex_2.

Are "passive participle" and " Passive voice" the same?

In short:

Participle is a form of a verb that can be used, among other things, to create tenses and the passive voice. When a participle is used to create passive voice, it can be called "passive participle."

In the sentence:

The window was broken with a rock.

...the word broken is a participle and the sentence is in the passive voice.

A bit more about participles:

According to YourDictionary, the word participle refers to a verb that can be used as:

• adjective (broken window)
• verb (seeing the results, he stopped)
• noun (seeing is believing)
• adverb (raving mad)
• with an auxiliary verb "have" or "be" to indicate tense, aspect, or voice:
  • I have asked. (present tense, perfect aspect)
  • I am asking. (present tense, progressive aspect)
  • I am asked. (present tense, passive voice)

The present participle ends in -ing (asking) and the past participle most commonly ends in -ed or -en (asked, spoken).