Atoms
Celestial Bodies
- Space Travel Equipment
- Stars
- Rotation and Revolution
- Relation Between Escape Velocity And Orbital Velocity
- Dwarf Planets
- Difference Between Solar Eclipse And Lunar Eclipse
- Difference Between Equinox And Solstice
- The Escape Velocity Of Earth
- Solar System
- Difference Between Stars And Planets
- Difference Between Asteroid And Meteoroid
- Constellations
Circuits
电路 (diàn lù)
电路 (Diànlù)
电路
通信系统Pdf
二极管
地球科学
电荷
电
- 类型的齿轮
- 电子产品在日常生活中
- 类型的汽车
- 类型的直流电机
- 类型的交流电机
- 晶体管工作
- 转矩电流环
- 电动机
- 电阻温度依赖性
- Rms值交流电
- 电抗和阻抗
- 相量表示法交流
- 平行板电容器
- 焦耳定律
- 电力
- 磁场对载流导线的影响
- 电流密度
- 导体绝缘体
- 导电
- 碳电阻器
- 直流发电机
- 类型的发电机
- 类型的电流
- 直流发电机类型
- Torque On Dipole
- 电流的热效应
- 电动发电机
- 静电
- 电阻率不同的材料
- 电场的物理意义
- 介电常数和磁导率
- 电能和权力
- 电流在导体
- 电动汽车
- 位移电流
- 电阻与电阻率之间的差异
- 电动机和发电机之间的区别
- 接地和接地之间的区别
- 电流线圈
- 水的电导率
- 导电的液体
Electricity
电磁波
电磁
静电学
能量
- 能量
- 能源类型
- 热能
- 太阳能项目
- 太阳能汽车
- Ev和Joule之间的关系
- 动能和完成的功
- 能量转换
- 一维和二维的弹性和非弹性碰撞
- 常规能源和非常规能源
- 太阳能炊具
- 潮汐能
- 能源
- 太阳能和光伏电池
- 动能与动量的关系
- 热量与焦耳的关系
- 能源及其对环境的影响
- 能源考虑
流体
武力
Force
摩擦
万有引力
热
动力学理论
光
- 镜面反射漫反射
- 人眼
- 结构人眼功能
- 阴影的形成
- 反射和折射之间的区别
- 相干源
- 光的透射、吸收和反射
- 透明半透明和不透明
- 阳光白色
- 单狭缝衍射
- 拉曼散射
- 粒子自然光光子
- 真实图像与虚拟图像的区别
- 衍射和干涉的区别
磁性
运动
- 运输历史记录
- 速度-时间图
- 旋转动能
- 刚体和刚体动力学
- 扭矩和速度之间的关系
- 粒子的直线运动
- 周期性运动
- 动量和惯性之间的差异
- 动量守恒
- 运动测量类型
- 扭矩
- 慢速和快速运动
- 滚动
- 刚体平移运动和旋转运动
- 相对速度
- 径向加速度
- 速度和速度之间的区别
- 动力学和运动学的区别
- 连续性方程
- 线性动量守恒
自然资源
核物理学
光学
Optics
- Reflection of Light and Laws of Reflection
- Concave Lens
- Total Internal Reflection
- Thin Lens Formula For Concave And Convex Lenses
- Spherical Mirror Formula
- Resolving Power Of Microscopes And Telescopes
- Refractive Index
- Refraction Of Light
- Refraction Light Glass Prism
- Reflection On A Plane Mirror
- Reflection Lateral Inversion
- Rainbow
- Photometry
- Difference Between Simple And Compound Microscope
- Difference Between Light Microscope And Electron Microscope
- Concave Convex Mirror
- Toric Lens
- The Lens Makers Formula
- Simple Microscope
Oscillation
Pressure
- Thrust Pressure
- Relation Between Bar And Pascal
- Regelation
- Sphygmomanometer
- Relation Between Bar And Atm
- Difference Between Stress And Pressure
Quantum physics
- Quantum physics
- Rydberg Constant
- Electron Spin
- Casimir Effect
- Relativity
- Quantum Mechanics
- Electrons And Photons
Radioactivity
- Relation Between Beta And Gamma Function
- Radioactivity Beta Decay
- Radioactive Decay
- Stefan Boltzmann Constant
- Radioactivity Gamma Decay
- Radioactivity Alpha Decay
- Radiation Detector
Scalars and Vectors
- Scalars and Vectors
- Triangle Law Of Vector Addition
- Scalar Product
- Scalar And Vector Products
- Difference Between Scalar And Vector
Scientific Method
- Scientific Methods
- Safety Measures Technology
- Difference Between Science And Technology
- Scientific Investigation
Semiconductors
- Semiconductor Devices
- Junction Transistor
- Semiconductor Diode
- Difference Between Npn And Pnp Transistor
Solid Deformation
- Solid State Physics
- Solid Deformation
- Stress
- Shear Modulus Elastic Moduli
- Relation Between Elastic Constants
- Elastic Behavior Of Solids
- Tensile Stress
- Stress And Strain
- Shearing Stress
- Elastomers
- Elastic Behaviour Of Materials
- Bulk Modulus Of Elasticity Definition Formula
Sound
- Sound waves
- Timbre
- Speed Of Sound Propagation
- Sound Waves Need Medium Propagation
- Sound Reflection
- Sound Produced Humans
- Doppler Shift
- Difference Between Sound Noise Music
- The Human Voice How Do Humans Create Sound With Their Vocal Cord
- Sound Vibration Propagation Of Sound
- Sound Produced Vibration Object
- Reverberation
- Doppler Effect
System of Particles and Rotational Dynamics
Thermal Properties of Matter
- Thermal Properties of Materials
- Thermal Stress
- Thermal Expansion Of Solids
- Thermal Conductivity Of Metals
Thermodynamics
- Statistical Physics
- SI Units List
- Statistical Mechanics
- Reversible Irreversible Processes
- Carnots Theorem
- Temperature
- Kelvin Planck Statement
- Difference between Isothermal and Adiabatic Processes
Units and measurements
- Density of Air
- The Idea Of Time
- Difference Between Pound And Kilogram
- Difference Between Mass And Volume
- Dimensional Analysis
- Density Of Water
- Time Measurement
- Standard Measurement Units
- Relation Between Kg And Newton
- Relation Between Density And Temperature
- Difference Between Mass And Weight
Waves
- Space Wave Propagation
- Sharpness Of Resonance
- Relation Between Group Velocity And Phase Velocity
- Relation Between Amplitude And Frequency
- Periodic Function
- P Wave
- Destructive Interference
- Transverse Waves
- Travelling Wave
- Standing Wave Normal Mode
- S Waves
- Relation Between Frequency And Velocity
- Reflection Of Waves
- Phase Angle
- Period Angular Frequency
Work, Energy and Power
- Derivation Of Work Energy Theorem
- Conservation Of Mechanical Energy
- Relation Between Work And Energy
- Destruction Caused Cyclones
Physics Experiments
- Determine Resistance Plotting Graph Potential Difference versus Current
- To find the weight of a given Body using Parallelogram Law of Vectors
- To study the variation in volume with pressure for a sample of air at constant temperature by plotting graphs between p and v
- To measure the thickness of sheet using Screw Gauge
- To find the value of V for different U values of Concave Mirror find Focal Length
- To find the Surface Tension of Water by Capillary Rise Method
- To find the Resistance of given wire using Metre Bridge and hence determine the Resistivity of its Material Experiment
- Determine Mass of Two Different Objects Using Beam Balance
- Tracing the path of the rays of light through a glass Prism
- Tracing path of a ray of light passing through a glass slab
- Tornado Bottle
- To find image distance for varying object distances of a convex lens with ray diagrams
- To find force constant of helical spring by plotting a graph between load and extension
- To find focal length of concave lens using convex lens
- To find effective length of seconds pendulum using graph
- To find downward force along inclined plane on a roller due to gravitational pull of the earth and its relationship with the angle of inclination
- To draw the IV characteristic curve for p n junction in forward and reverse bias
- To determine Young’s modulus of elasticity of the material of a given wire
- To determine the internal resistance of a given primary cell using a potentiometer experiment
- To determine the coefficient of viscosity of given viscous liquid by measuring terminal velocity of given spherical body
- To determine specific heat capacity of given solid by method of mixtures
- To determine radius of curvature of a given spherical surface by a Spherometer
- Scope and Excitement of Physics
- Rocket science
- Relationship between frequency and length of wire under constant tension using Sonometer
- To determine equivalent resistance of resistors when connected in series and in parallel
- To convert the given galvanometer of known resistance and figure of merit into a voltmeter of desired range and to verify the same experiment
- To determine minimum deviation for given prism by plotting graph between angle of incidence and angle of deviation
- To compare the emf of two given primary cells using potentiometer experiment
Introduction
Measurement is an important part of daily pfe and without that; it is difficult to describe any object or anything. Many kinds of measurement units have been used for a long time and sometimes it varies to place.
Many new units also have been introduced with time and need. However, the need for a universal measurement unit was there, to sum up, every other unit, and this process gave birth to the Standard Measurement Unit.
What is a Standard Measurement Unit?
Figure 1: Conversion between grams and milpgrams
In today s time, the Standard Measurement Unit is also known as the SI Unit. It is the most commonly used measurement unit that helps to understand length, weight, height and many more (Mari, Ehrpch & Pendrill, 2018). Standard Measurement Unit can be defined as a value that cannot be changed or modified, in short, it is fixed. It was essential to create consistency in the Universal measurement units. The full form of SI is derived from a French word, Système International (NIST, 2022). This measurement unit system is accepted universally, and used for scientific research. The measurement is a concept that helps to understand the association of an object.
Concept of International System of Units
International System of Units is a system of units that were estabpshed and accepted majorly by most of the developed and developing countries.
The idea that gives birth to this unit system is to tackle problems regarding different kinds of measurement units (cbsedigitaleducation, 2022). From the very beginning, people do not have any measurement units with which they can calculate the SI units that is when they felt the importance of a unique way of measurement with whatever tool they had. For example, in earper times, civipans used leagues to measure the length.
The league is the amount of distance that one person can cover in an hour (Newell & Tiesinga, 2019).
However, today the league measures are of no use. For this reason, it is accepted and welcomed by the field of science and technology, even by the government operation, to end any kind of confusion regarding measurement units.
However, in some places, people still refer to the measurement in their traditional unit system (Mari, Ehrpch & Pendrill, 2018). For example, the people of America still refer to the length as inch and feet and not as cm and meters.
The International system of units, that is also called SI unit is also referred to as the Standard Measurement Unit, which can be used to define any kind of physical quantities.
Use and advantage of Standard Measurement Units
Use of Standard Measurement Units
To bring more accuracy to the measurement system the Standard Measurement Units is used. There are many sets of units in different places to measure the length, weight, area, mass and more (Newell & Tiesinga, 2019). If the measurement unit differs in places, it becomes difficult to communicate especially in the science and technology field. One can imagine how comppcated things will go if different measurement units exist in the same space (thoughtco, 2022). That is why it is important to have unity in the measurement and there should be a common set of units, which is why the SI units are used in major countries.
Figure 2: Different types of SI units
Advantages of Standard Measurement Units
There are many advantages of the SI unit system. It makes people understand measurements in the same unit system and that helps people communicate and discuss anything because it is used all over the world (thoughtco, 2022).
The most important thing is it has only one unit for each quantity. As almost everywhere the measurement system is common, it is beneficial for the field of science and technology, because scientists and researchers can communicate and discuss their achievements or boundaries (nist, 2022).
It is important for common people too, it helps them to continue the communication wherever they go. One disadvantage of this unit system is that it talks about only one unit and as a result, others get zero importance.
SI base units
There are seven base units of measurement.
The unit of mass is Kilogram, and it is used as kg, the abbreviated form of Kilogram
The unit of length is Meter, which is referred to as only m.
Unit of time is defined as second in short only s.
Ampere is used as the unit of electric current and denoted as A.
The unit of temperature is kelvin and it is referred to as the abbreviated form K.
The unit of an amount of substance is defined as Mole and the last one
the unit of Luminous Intensity is Candela and it is denoted as the cd.
Conclusion
The base 7 units of measurement are considered as the mutual process that is used all over the world and the other units of measurement are derived from that. These standard Measurement Units helped the process of development in the field of science and research. It can be based on one base unit or it is a combination of base units or other estabpshed units that are derived. All those units help the overall progress of science. There are a few more SI units used in physics. They are, Tesla, the unit of magnetic field and the joule, the base unit of heat.
FAQs
Q1. What are the 7 base units of the Standard Measurement Units?
There are seven SI units of measurement and are Kilogram or kg, meter or m, second or s, Ampere or A, kelvin as K, mole and the last one candela or cd.
Q2. What is the use of Standard Measurement Units?
There were different kinds of measurement units all over the world, however, for the progress of science was important to have a common set of units, and that gave birth to the concept of Standard Measurement Units
Q3. What is the SI unit of magnetic field?
The SI unit of magnetic field is Tesla.
References
Journals
Newell, D. B., & Tiesinga, E. (2019). The international system of units (SI). NIST Special Pubpcation, 330, 1-138. Retrived from:
Mari, L., Ehrpch, C., & Pendrill, L. (2018). Measurement units as quantities of objects or values of quantities: a discussion. Metrologia, 55(5), 716. Retrived from:
Websites
Cbsedigitaleducation (2022), Units and Measurements, Retrieved from:
[Retrieved on: 17.06.2022]
nist (2022), SI Units, Retrieved from:
[Retrived on: 17.062022]thoughtco (2022), International System of Measurement (SI), Retrieved from:
[Retrieved on: 17.062022]