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Home Sindh Class 10 Physics

Sindh Class 10 Physics Notes Cha 2 Measurements Pdf Download

October 24, 2021
in Sindh Class 10 Physics
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Physics Notes Sindh class 10 chapter 2 measurements pdf download fill in the blanks, true/false, Mcqs, short long question, and numerical Problems.

what are the fundamental and derived units?

Table of Contents

    • what are the fundamental and derived units?
    • What is meant by Measurement?
    • What is the importance of measurement?
    • Define physical quantities?
    • Fundamental Or Basic Quantities With Their Units
  • Class 10 Notes Measurements Sindh Pdf Download
    • Sindh Class 10th Physics Numericals Pdf Download

Fundamental Units:
Such units which cannot be derived from other units are called fundamental units. For example, length, mass, temperature, electric current and light intensity etc.

Derived Units:
The units which are derived from the fundamental units are called derived units. For example, force, acceleration, velocity, volume, pressure, area etc.

What is meant by Measurement?

MEASUREMENT: The following information about a body or an event is called Measurement.
● The size and nature of a body are described with a scale.
● A clock describes an event.
● Hence the reading will give the scale or clock about a body or an event is known as Measurement.

What is the importance of measurement?

IMPORTANCE OF MEASUREMENT:
● In our daily life, we get knowledge of things through our five senses, touch, smell, taste, sight and hearing. However, our senses often do not provide us with correct information.
● We use measuring devices generally called apparatus to get the correct measurement. Such as:
● To measure volume we use a measuring cylinder.
● For mass, we use a common balance.
● For the measurement of length, a meter scale is used.
● A vernier calliper can measure correctly up to 0.1 mm and a micrometre screw gauge can measure correctly up to 0.1 mm.
● Any instrument whose calibration is in doubt must be checked or discarded

Define physical quantities?

PHYSICAL QUANTITIES:
Every material has certain characteristics. These are to be measured to specify them. For instance, if we want to specify the characteristics of brick we will have to measure its length, width, height and mass. Such characteristics are called physical quantities.

Fundamental Or Basic Quantities With Their Units

S.No. Physical quantity Symbol of quantity Name of Units Symbol of units
 1. Lengthl Meter m
 2. MassM Kilogram kg
 3. Timet Second s
 4. Electric CurrentI Ampere A
 5. TemperatureT Kelvin K
 6. Luminous IntensityIv Candela d
 7. Amount of substance n Mole mol

Class 10 Notes Measurements Sindh Pdf Download

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Sindh Class 10th Physics Numericals Pdf Download

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