What is plagiarism exactly? Is it always done on purpose?

Question 1.  should be as follows It’s a scenario that will need to be defined

What is plagiarism exactly? Is it always done on purpose? The rules related to plagiarism can be complex, and there are instances in which people who have unwittingly plagiarized have ended up in court. The concept of academic integrity includes the avoidance of plagiarism. To avoid plagiarism, it helps to first recognize it. read the scenario below and explain if its plagiarism or not in 150 words

Scenario John has not had time to work on his online assignment on psychological theory. He found a website that has an article with the content he needs to complete his assignment. However, he has only 30 minutes before his assignment is due. John believes that the author of the article described psychological theory so well that it would take John hours to paraphrase the material. John decides to copy several sentences and one short paragraph from the article and paste it into his own paper. He includes the author in the references and believes that this appropriately cites the autho