Most Jews find it odd when someone uses an awkward construction like "a Jewish person" when they could use something short and simple like "a jew." There's also a feeling that people who say "a Jewish person" believe that the word "Jew" is nasty, and that they may, in other contexts, call people Jews meaning it as an insult.
Jews are Jewish and non-Jews are a different religion.
A person who is born to a Jewish woman or who halachicly (following Jewish law) converts to Judaism is a Jew.
I'm Jewish = I am a member of the Jewish religion and the Jewish family. The Jews are a small minority = Jewish people make up a tiny percentage Many people prefer to say 'Jewish' rather than 'Jew'. Historically, 'jew' has been defined negatively. It's nicer to ask someone: 'Are you Jewish?', as opposed to 'Are you a Jew?'
For most Jews, it does not matter whether or not you refer to them as Jewish people or as Jews. What matters is whether you do so politely or derisively. The difference between the terms Jewish and Jew is that Jewish is the derivative adjective while Jew is the noun. It is the same as: Spanish is the derivative adjective while Spaniard is the noun.
It can be either. According to the laws of Judaism, a person born to a Jewish woman is a Jew. Alternatively, a person can become a Jew through valid conversion. However, a person who is a Jew, can convert to another religion and is seen as being cut off from the Jewish Nation. This person would technically be a Jew, however, they would not be Jewish.
-- A person is not a Jew unless born of a Jewish mother. -- There is no "also".
Jewish law specifies that a Jew is a person who was born to a Jewish woman or who has converted to Judaism as per Jewish law.
Jewish is an adjective. "The Jewish people." Jew is the noun. "Einstein was a Jew."
A person who follows the Jewish religion.
A member of Judaism is called a Jew or a Jewish person.
Contrary to what is believed today, there is no difference between Jew and Gentile after 70 A.D. in the eyes of the Genuine God.
If the Jew is a woman, you get a black Jew. If the mother isn't Jewish, then the child isn't either.