# P2 - What's the difference between mass and force??

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#1
So I was revising about resultant forces and Hooke's Law and for resultant force, it was measured in Newtons and for mass it was also measured in Newtons....? So what's the difference?

Thanks
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5 years ago
#2
Sounds like a mistake to me. Mass is measured in kilograms, not Newtons.

Mass describes the quantity of matter an object contains. Force is any influence that can cause something with mass to accelerate.
1
5 years ago
#3
(Original post by Perfection Ace)
So I was revising about resultant forces and Hooke's Law and for resultant force, it was measured in Newtons and for mass it was also measured in Newtons....? So what's the difference?

Thanks
It's a mistake. Mass isn't measured in Newtons. Weight is.
1
5 years ago
#4
(Original post by Perfection Ace)
So I was revising about resultant forces and Hooke's Law and for resultant force, it was measured in Newtons and for mass it was also measured in Newtons....? So what's the difference?

Thanks
Mass should not be measured in Newtons*: it is measured in kilograms. Weight (mass*gravity - gravity is an acceleration of, on Earth, 9.81ms^-2) is measured in Newtons.

Mass is how much stuff there is and weight is the force pulling you down to the Earth. Generally, a force is an interaction acting on a body which, assuming no opposition, will change its motion.

*Newtons in SI units is kgms^-2
1
5 years ago
#5
mass is in kilograms (kg)
weight is in newtons (N)

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because I think that mass is the amount of matter whereas weight is a force
1
#6
Okay thanks everyone!
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