Mass,Weight & Density

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Physical quantities

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Chapter 4 Mass,Weight & Density

Mass

Measure using

Electronic calibrated balance

Beam Balance

Scalar Quantity

It does not depend on the gravitational field strenth

Mass S.I unit Kilogram

Mass is a measure of inertia.

Mass is the amount of matter,in a body.

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Differences

Weight

Measured using

Compression Balancance

Spring Balance

Vector Quantity

Formula: Weight=Mass X Gravitational field strength

Weight S.I unit Newton

Weight of an object is the gravitational force of gravity acting on it.

Inertia

The greater the mass of an object, the greater the inertia

Mass is the measure of inerita

The reluctance of an ojbect to change its state of motion due to its mass

Density is defined as its mass per unit volume.

Density

Defined as mass per unit volume

Density Formula is density = mass/volume

Density S.I unit is in Kilogram per cubic metre.

Subtopic

Gravitational Field

known as weight

A mass experiencing force due to gravitational attraction