It is unknown. There is no mention in the Torah of Abraham wearing a kippah.
You would wear a kippah on your head; it is a form of skullcap. Religious Jews wear them everywhere they go, while some less-religious Jews wear them only in the synagogue.
A kippah, or yarmulke. http://en.wikipedia.org/wiki/Kippah
They may wear a kippah.
It is placed on the head.
You put it on the top of your head like a hat.
The kippah (also known as a skull-cap or yarmulka) is worn by men of any Jewish denomination. Orthodox men wear the kippah all the time. Non-orthdox men (and some non-orthodox women), usually wear it only in a synagogue or at home during Jewish events. Some Reform Jews wear a kippah all the time.
Jewish teachers (rabbis) typically wear a kippah or yarmulke on their head.
He'll wear a business suit with a tie and even a kippah.
Yes! There are gay-friendly synagogues.
Most Orthodox and Ultra-orthodox Jewish men wear a kippah all the time. Married women in this group also cover their hair in public. Some non-orthdox Jews also wear a kippah all the time, particularly some rabbis and cantors.
It is a small hat that Males wear, the singular is 'kippah' andit is pronounced ( KEY-pah). 'Kippot' is the plural. Religiously observant Jewish men always wear a kippah while other Jewish men, and sometimes Jewish women, wear them while praying.
A kippah, or Yarmulke, or a hat or streimel.