1 kg is equivalent to approximately 9.8 Newtons (N) when measured on the surface of the Earth, reflecting the gravitational force acting on that mass. This relationship highlights that while a kilogram is a unit of mass, a Newton is a unit of force. The statement "the weight of 1 kg on the surface of the Earth is about 9.8N" provides a more precise understanding of this concept. Misunderstandings about these units can lead to confusion, especially in educational contexts. Accurate terminology is essential for clear communication in physics.