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02. Physical Quantities And Measurement 1

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Last edited 26 days ago by Learn LoopHQ.

Chapter: 02. Physical Quantities And Measurement 1

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A quantity that can be measured is called a _ _ _ _ _ _ _ _ _ _ _ _ _ _.
physical quantity
The comparison of an unknown quantity with a known fixed quantity of the same kind is called _ _ _ _ _ _ _ _ _ _ _ _ _ _.
measurement
Every measurement value consists of two parts: the numerical value and the _ _ _ _ _ _ _ _ _ _ _ _ _ _ of measurement.
unit
The International System of Units is more commonly known as the _ _ _ _ _ _ _ _ _ _ _ _ _ _ units.
SI
The SI unit to measure length is _ _ _ _ _ _ _ _ _ _ _ _ _ _.
metre
_ _ _ _ _ _ _ _ _ _ _ _ _ _ is the SI unit to measure volume.
Cubic metre
Length can be defined as the _ _ _ _ _ _ _ _ _ _ _ _ _ _ between any two points or places.
distance
To measure the distance between two towns, a bigger unit like _ _ _ _ _ _ _ _ _ _ _ _ _ _ is needed.
kilometre
To convert centimetres (cm) into metres (m), the number of cm is divided by _ _ _ _ _ _ _ _ _ _ _ _ _ _.
100
The most common instruments used to measure length are the ruler, the metre scale, and the _ _ _ _ _ _ _ _ _ _ _ _ _ _.
measuring tape
A metre scale has _ _ _ _ _ _ _ _ _ _ _ _ _ _ divisions, each equal to 1 centimetre.
100
The error that occurs due to incorrect positioning of the eye while taking measurements is known as _ _ _ _ _ _ _ _ _ _ _ _ _ _.
parallax error
The quantity of matter in a body determines its _ _ _ _ _ _ _ _ _ _ _ _ _ _.
mass
Mass is the quantity of matter contained in a body whereas _ _ _ _ _ _ _ _ _ _ _ _ _ _ is the force of gravity exerted on the body due to its mass.
weight
The standard unit of mass in SI system is _ _ _ _ _ _ _ _ _ _ _ _ _ _.
kilogram
To measure the mass of heavier bodies, we use _ _ _ _ _ _ _ _ _ _ _ _ _ _ and metric ton.
quintal
The _ _ _ _ _ _ _ _ _ _ _ _ _ _ , New Delhi is responsible for maintaining the national standards for all the basic units in India.
National Physical Laboratory (NPL)
Mass is usually measured by using appropriate _ _ _ _ _ _ _ _ _ _ _ _ _ _.
balances
The _ _ _ _ _ _ _ _ _ _ _ _ _ _ provides a direct digital display of the mass of the object and is very accurate.
electronic balance
The hole in proper standard weights is filled with _ _ _ _ _ _ _ _ _ _ _ _ _ _ and stamped by the Weights and Measures Department.
lead
Food adulteration can be intentional, incidental, or _ _ _ _ _ _ _ _ _ _ _ _ _ _.
metallic
The space occupied by a flat surface is called its _ _ _ _ _ _ _ _ _ _ _ _ _ _.
area
The standard unit of area in SI system is _ _ _ _ _ _ _ _ _ _ _ _ _ _ or metre square.
square metre
The area of regular shapes can be determined by using a _ _ _ _ _ _ _ _ _ _ _ _ _ _.
graph paper
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