Is 1 kg Really Equal to 9.8N on Earth's Surface?

  • Thread starter Thread starter destroying
  • Start date Start date
AI Thread Summary
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.
destroying
Messages
5
Reaction score
0
Is it a unit? or sth?:confused:
 
Physics news on Phys.org
It's 0.001 of a Newton
A Newton is the unit of force, 1 kg = about 9.8N
 
mgb_phys said:
1 kg = about 9.8N
I think many school teachers would be angry if you said that.

"the weight of 1 kg on the surface of the Earth is about 9.8N" is more accurate.
 
Hi there, im studying nanoscience at the university in Basel. Today I looked at the topic of intertial and non-inertial reference frames and the existence of fictitious forces. I understand that you call forces real in physics if they appear in interplay. Meaning that a force is real when there is the "actio" partner to the "reactio" partner. If this condition is not satisfied the force is not real. I also understand that if you specifically look at non-inertial reference frames you can...
I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
Back
Top