Question

1. State the Universal Law of Gravitation

2. Derive the 'acceleration due to gravity' (g) value

3. Differentiate Mass & Weight

Total Marks 10

Answer 1

here is ur ans❤

Q.State the Universal Law of Gravitation

ans. Newton's law of universal gravitation is usually stated as that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Q .2. Derive the 'acceleration due to gravity' (g) value

ans. Its SI unit is m/s2. It has both magnitude and direction, hence, it's a vector quantity. Acceleration due to gravity is represented by g. The standard value of g on the surface of the earth at sea level is 9.8 m/s2.

Acceleration Due to Gravity (g)SymbolgDimensional FormulaM0L1T-2SI Unitms-2Formulag = GM/r2

Q. Differentiate Mass & Weight

ans. 1) Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object.

2)Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.

hope it helps u❤

Answer 2

Answer:

1.The Universal Law of Gravitation states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of the masses and inversely proportional to the square of the distance between them.

3.A.Mass is simply the measure of the amount of matter in a body.

Weight is the measure of the amount of force acting on a mass due to acceleration due to gravity  

B.Mass is denoted by “M”.

Weight is denoted by “W”.  

C.Mass is always constant for a body and there are several formulas to calculate mass.

One way to calculate mass is:

Mass = volume × density

Weight is the measure of the gravitational force acting on a body.

Weight can be calculated from the following formula:

Weight = mass × acceleration due to gravity

D.Quantity Type  

Mass is a base quantity.

Mass only has magnitude and so, it is a scalar quantity.

Weight is a derived quantity.

Weight has both magnitude and direction (towards the centre of gravity) and so, it is a vector quantity.

E.The SI unit of mass is Kilogram (Kg).

The SI unit of weight is Newton (N).