There are many names for small sharp pins such as: Pins, Needles, etc. The one that is most likely is a tack. That is probably your answer, a tack.
Pin...
Pin
Pressure is inversely proportional to area. A sharp pin has lesser area compared to a blunt pin. Therefore we require lesser pressure to push the pin with lesser area.Hence it's easier to push a sharp pin which has lesser area.
Put a pin or something sharp in it
By turning it.off
becoz it can easily pierce through anything...(when it is sharp)
"Prick" can be used as a derogatory term meaning a contemptible person or an insult to someone's character. It can also refer to a sharp, pointed object or a small hole made by a sharp object.
It depends on the object. For a pin we would say the end of a pin For a knife we would point of the knife.
Pin , Scissors , Sharp nail/tack
Pain
A sharp object is anything with a sharp point or edge that could inflict injury or even death. Injury could be anything that breaks the skin, from a prick, a puncture, or a cut type wound. Some examples of sharp objects include:a broken piece of glassa pair of scissorsa medical needle (needle and syringe)a sewing needlea straight pin or fastening pina piece of jewelry with a sharp edgea knife, even a small pocket-knifean edge of a hard plastic containera fork what you eat withUsually, professionals in jails, prisons, or psychiatric hospitals have strict definitions about what is a sharp object. Even a metal bobby pin (hair pin) or a sharpened pencil can be used as a weapon.
There is more surface area so the force is spread out more