What is the difference between kilogram and newton

According to Newton's Second law of motion , force is directly proportional to the mass of the object on which force has been exerted. Thus we can say Newton and Kg are also directly proportional to each other, thus if we encounter any change in the unit of force in Newton it will result in a change in the unit of mass in Kg keeping the acceleration constant.

To arrive at a mathematical description for the relation between Kg and Newton, let us discuss the definition of Kg and Newton respectively. There are seven fundamental units in physics, Kg is one of them. Fundamental units are the units that are independent quantities, all other units are derived from them.

The Abbreviation of Kilogram is Kg. The kilogram is one of the basic units of metric systems. Newton is the SI unit of Force. Dyne is the unit of Force in the CGS system. From the above expression, Newton is directly proportional to Kg. If the object under consideration is having negligible mass or considerably less mass then the force required in Newton will also be very less.

If the object under an action-heavy, then the force required will also be more. Learn more. Why do we use kilograms instead of newtons to measure weight in everyday life? Ask Question. Asked 7 years, 1 month ago. Active 22 days ago. Viewed 96k times. Improve this question. Jake Jake 1 1 gold badge 2 2 silver badges 9 9 bronze badges. Weight is measured in Newton. Was referring to everyday life. We technical people are the ones who butchered it by hijacking an existing concept with widespread use in multiple languages and then telling people that they are wrong.

Show 9 more comments. Active Oldest Votes. Improve this answer. Floris Floris k 12 12 gold badges silver badges bronze badges. I definitely agree as to the "how much" we are measuring, but if people are free to calibrate their scales to the local gravity, then why don't why just call it mass rather than weight or kg-f? The concept of force is much more recent than the concept of weight. Not sure about the third point. Latitude is just a measure of how close to the equator you are.

Moving the scale invalidates the calibration. At least that is the point I tried to make in my answer. Show 12 more comments. In other words, the weight force of one kg is equal to one kgf, or 9. Imagine going to the market and buying 4. However, if we use kgf, a 50kg man would weigh 50kgf, which is much more convenient. Unless some force — like friction, or banging into a wall — acts on the puck, it will keep sliding on the same path forever.

Mass is a measure of how much force it will take to change that path. Mass depends on how much matter — atoms and so on — there is in an object; more mass means more inertia, as there is more to get moving. Weight, on the other hand, is a measure of the amount of downwards force that gravity exerts on an object. This force — newtons — is actually what bathroom scales are measuring.

They convert it into kilograms for convenience. This is about what an Even on the International Space Station, where astronauts are weightless, they still have mass: they must still exert force to push themselves off the walls or pull themselves along, and the bigger they are the more force it will take.