Class 11

Physics is related well with fundamental laws of nature that apply to a wide range of situations in life. Our everyday lives are replete with the usage of measuring, which makes things simpler for us to grasp the fundamentals of physical quantity. Physical quantities could be explained in aspects of a unit of such a […]

In day to day life, we always see the use of physical quantities like when we buy milk from the shop, or vegetables from the market we use kilogram (kg), litre (L) or when we are going some place and wants to know the distance covered, then we ca use physical quantities like m, km,

Standard Units of Measurement A standard unit of measurement is a way of putting a common language to a quantifiable quantity.  It is through units that we can understand the relationship between objects and measurements. Measurements are essential for understanding quantities, so it is important to understand how they work and what kinds of units

Measurement is a process by which we can weigh or measure any physical quantity of material using equipment and instruments. Measurements of physics quantity can be expressed by a unit known as numerical. By measuring a physics quantity, we can define the property of the material. We can measure mass, weight, and different physical properties

A micrometer, also known as a micrometer screw gauge, is a device with a calibrated screw that is widely used in mechanical engineering and machining, as well as the majority of mechanical trades, in conjunction with other meteorological instruments such as dial, vernier, and digital calipers, for accurate measurement of components. Micrometer or screw gauge

There is no such thing as a perfect measurement. The measured value of a physical quantity is never the same as the true value of the quantity. Error is defined as the difference between a physical quantity’s true value and its measured value. It is impossible to eliminate the errors associated with methods of measurement

A system of units is a collective list of units used to measure any item. Units are essential to understanding the measured value of a quantity. These units are used to relate and observe the measurement of any item, thereby understanding the magnitude of the quantity better. Length, mass and second are primary quantities that

Introduction:  Measuring is essentially a process of comparison. To determine how many times a standard amount of a physical quantity is present in the quantity being measured, we must first determine how many times a known standard amount of the physical quantity appears in the quantity being measured. The magnitude of the physical quantity is

Measurements are discovered to increase the knowledge and understanding of segregating materials. The law of physics is reflected in terms of physical quantities. The measurements should have a standardised unit that is common worldwide. Length, mass and time are the three main and basic quantities in measurement. These three units of measurement form the mks

A unit system is a collection of units related to each other that are utilised for calculation. The system comprises base units, which are base dimensions, and derivation units. Specific units are part of multiple systems of units. In the MKS (metre, kilogram and second) model, the three base units are the metre, kilogram and