whats the differents between weight and mass?

Answer 1

Mass is a measure of amount of matter.
Force is measure of effort required to move or stop an object that has a certain mass.
Hence we have F=ma
Weight is a force that a planet such as Earth exerts on a particular mass. In this case weight
W=mg, where ‘m’ is the mass of the object and ‘g’ is gravitational acceleration.

Answer 2

In everyday life we're a bit slack about making a distinction between weight and mass, and we measure them both in kilograms. That's because gravity doesn't vary in ordinary everyday situations. But strictly speaking, weight is measured in newtons, not kg. Weight is a force; mass times acceleration, and the acceleration due to gravity here on the Earth's surface is, near enough, 10 metres per second per second. So something which "weighs"1 kg. has a mass of 1 kg and a weight of 10 newtons. If you took it to the Moon, it would still have a mass of 1 kg., but its weight would only be about 1.6 newtons.

Answer 3

Mass is the quantity of count modern-day in a physique and is an intrinsic assets of the physique. Mass of an merchandise continues to be a similar continuously at anyplace. Weight on the different hand is the strain which a given mass feels because of the gravity at its place. Weight is measured in contraptions of tension like Newton (it is the SI unit of tension).

Answer 4

Difference Between Mass and Weight

Students of physics often confuse mass and weight of an object and many also feel that there is no difference between the two, while the fact is that there is a lot of difference between the two.

Mass is the amount of matter present in a body and is an intrinsic property of the body. Mass of an object remains the same always at any place.

Weight on the other hand is the force which a given mass feels due to the gravity at its place. Weight is measured in units of Force like Newton (which is the SI unit of Force).

If your mass is 60 kgs then your weight is approximately 60 x 10 = 600 Newtons. This is because

Force = mass x acceleration (From Newton's second Law)

Thus, weight = mass x acceleration due to gravity

If you go to moon your mass remains same, i.e 60 kgs, but your weight becomes less by 1/6 amount, since moon's gravity is 1/6 that of earth.

Mass of a body is measured by balancing it equally with another known amount of mass. You keep known amount of masses like blocks of 1 kg, 2 kg etc on one side till both the sides balance and then add up the numbers on the known side of mass and thus calculate the unknown mass. This works because, when the masses are equal on both the sides of the balance the effect of gravity cancels out for both (i.e weight cancels out) and hence we can calculate the mass on one side of the balance if we know the mass on the other side of the balance.

Weight is measured using a scale which effectively measures the pull on the mass exerted by the gravity of the earth.



If an object is in freefall towards the attractor (like earth), even then it has weight, but it experiences weightlessness (like an astronaut in a spaceship around the earth) since it is obeying the force. Weight can be felt only when the body in question tends to oppose the force of gravity (like u and me sitting on the surface of the earth:-)

Remember that even though we are at rest due to the friction between our self and earth's surface, our acceleration is not zero, it is still 9.8 m/s2 as the earth is constantly pulling us down towards its center. But we are resisting that pull and feel the force as weight.


DIFFERENCE

MASS---
--Is always a constant at any place and time
--Is measured in kilograms in SI unit
--Is measured using balance
--Can never be zero
--Is an intrinsic property of a body and is independent of any external factor.

weight---
--Depends on gravity at the place
--Is measured in Newtons (not in kilograms as one might think)
--Is measured using scales
--Can also be zero
--Depends on
1. Mass of the object which is attracting it
2. Force with which it is being attracted (which in turn depends on the distance between the two)

Answer 5

Mass in an intrinsic property of matter, and is a constant (as long as one does not travel at relativistic speed, in which case mass increases for an outside observer's point of view).

Weight is the force that applies to an object of a given mass because of an acceleration, notably that of a planet gravity, and will change for a given mass as a function of the intensity of that gravitational field.

If you are far from any celectioal body, in deep space, you weight could be zero, but your mass will remain.

Answer 6

Weight depends on the amount of gravity, the mass is always the same.
You can take a mass of 1 kilogram (based on earth standard gravity), which on the moon will only weigh about 160 grams
And it's 'difference'.

Answer 7

Mack L make a clever way of saying it. Theoretically it is believed that as a Space Ship move faster in space, it's Mass will increase after the speed of light. IF, we were able to prove this Theory, then it would show mass does not always stay the same.

Answer 8

Objects have mass. It's the amount of "stuff" it has. It's a value that is what it is regardless of where the object is.

Weight, on the other hand, depends on the gravity pulling down on it. So the same object (with a certain mass) would "WEIGH" different amounts on different planets, and would be "weighless" in space.

Answer 9

Hi. Weight is the result of gravity. Mass is resistance to acceleration.

Answer 10

You can lose weight by moving to the Moon, but someone looking at you will still call you a fat @ss because of the obvious mass you'll still be carring around.