Mass & Weight - Sept 30th 2024

Mass [ M ] is classified as how much matter is contained in an object/ substance.

Weight is constant for a body irrespective of its position and surroundings.

The mass of a body is measured by a triple beam balance or simple balance.

The SI unit for grams is kilograms [kg]

*1000kg = 1 Tonne (Ton)

Mass is a scalar quantity

Weight [W] Is the force with which the earth’s gravity attracts matter/ substances/a body.

The weight of a body can be calculated as weight = mass x gravity

* Since the “g” value changes from place to place on the earth’s surface, and as it varies from planet to planet the weight of a body also changes from place to place & planet to planet. The average “g” value on earth is 10m/s² or 10N/kg

The average “g” value on the earth is 1.6m/s²

The weight of a body is measured with a spring balance.

The SI unit for weight is Newton [N]

Weight is a Vector quantity