A small sharp object could include items such as needles, pins, thumbtacks, or razor blades. These items are typically used for sewing, crafts, or other precision tasks.
A cut caused by a sharp object is commonly referred to as a laceration.
the pressure has increased
A coin is an object that is small in size.
A macro lens would be the most suitable for photographing very close to an object. This type of lens allows for high magnification and sharp focus on small subjects at close distances.
A very small object is called a "microscopic" object or "minuscule" object, depending on the size. It can also be referred to as a "tiny" or "miniscule" object.