Answer:
A wedge is a machine that consists of two inclined planes, giving it a thin end and thick end. A wedge is used to cut or split apart objects. Force is applied to the thick end of the wedge, and the wedge applies force to the object along both of its sloping sides. This force causes the object to split apart
Newton meter
Torque wrench
Or Just a plain Scale
Helium atom, in other words, it consistis of a particle having four protons and two neutrons.