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Mass is a quality of matter (apparently a construct of the Higgs field, but that's probably a little more answer than you were looking for). Weight is mass acted on by gravity.
Mass is usually stated in units of kilograms. Weight can also be stated in kilograms, but is sometimes expressed in newtons.
The mass stays constant, while the weight can change. If you are 90 kg, then on the moon your mass would still be 90 kg, but your weight would be one sixth of that, 15 kg. Weight is the force of attraction exerted on you by the moon or the earth, whichever you happen to be standing on.
In science and engineering mass is described in kilograms, while weight (force) is measured in Newtons which goes back to Newton's second law of motion: force equals mass times the rate of change of momentum. In most cases that can be simplified to force equals mass times acceleration.
A force of 1 Newton causes a 1 kg mass in free motion to increase its speed by 1 meter per second every second.
In practice on the earth's surface a 1 kg mass has a weight of 9.81 Newtons, but in everyday language we say its weight is 1 kg because that works for everyone who is not an astronaut :).
What else can I help you with?
The reason a ship floats is because?
The basic reason that a ship floats is that the enclosed volume in the ship's hull is greater than the volume of water which has the same mass as the ship.
How can large ships float in water?
Large ships float in water because of buoyancy, which is an upward force exerted by a fluid that opposes the weight of an immersed object. Ships are designed to displace a volume of water equal to their weight, allowing them to float. By distributing the weight of the ship evenly and displacing enough water, the buoyant force keeps the ship afloat.
Why is ship floating on the water but it is made of metal?
Because the volume of water it displaces weighs more than the ship. Archimedes principle says that the upwards force on the ship is equal to the weight (mass) of fluid displaced - so the ship floats
How can a large ship float in water?
A large ship can float in water due to the principle of buoyancy. The weight of the water displaced by the ship is equal to the weight of the ship itself, allowing it to stay afloat. The shape of the ship's hull and the distribution of weight also play a role in helping it float.
When aship floats on water?
When vessel floats on a liquid, then it displaces a volume of that liquid, whose mass equals the mass of the vessel. If our vessel is hollow, as a ship or a bowl would be, then there is available some of the volume for the carrying of a load. Archimedes is attributed with this discovery.
What Relation between marginal cost and average cost?
relation ship between average cost and marginal cost
What relation ship between religon and polotics?
flhiyu7bswimm;so'd]
Who discovered the relation ship between electic current and resistance?
ohm
What is the relation ship between Zeus and Hades?
Hades is Zues's brother
What is the symbiotic relation ship between spanish moss and trees?
Commensalism
Theme of witch and wizard?
Relation ship between main characters/relationship between siblings
What is the relation ship between Leslie and his father?
what is relationship between leslie and his father - bridge to terabithia
How is the relation ship between diameter and raduis expreesed?
diameter = 2*radius
whatisthe relation ship between logic and language?
the answer but i do know that you can find the answer
What is the relation ship between mass distance and gravitational force?
For two masses, m1 and m2, the gravitational force is proportional to m1, it is proportional to m2, and it is inversely proportional to the square of the disdtnace.
What is a brake in a relationship?
it is a small time period that you and the person in your relation ship stop and think about how your relation ship is going then you decide if you want to keep your relation ship or not. it is the time to think about your relation ship basically.
What is the difference in weight between a ship and a rowboat?
lots
