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
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- 磁场对载流导线的影响
- 电流密度
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- 类型的发电机
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- 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
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Electricity
电磁波
电磁
静电学
能量
- 能量
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- Ev和Joule之间的关系
- 动能和完成的功
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- 一维和二维的弹性和非弹性碰撞
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- 能源
- 太阳能和光伏电池
- 动能与动量的关系
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- 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
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- 粒子自然光光子
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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
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- 动量和惯性之间的差异
- 动量守恒
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- 扭矩
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- 相对速度
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- 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
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- Difference Between Simple And Compound Microscope
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- Concave Convex Mirror
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- The Lens Makers Formula
- Simple Microscope
Oscillation
Pressure
- Thrust Pressure
- Relation Between Bar And Pascal
- Regelation
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Quantum physics
- Quantum physics
- Rydberg Constant
- Electron Spin
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- Relativity
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- Electrons And Photons
Radioactivity
- Relation Between Beta And Gamma Function
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Scalars and Vectors
- Scalars and Vectors
- Triangle Law Of Vector Addition
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- Difference Between Scalar And Vector
Scientific Method
- Scientific Methods
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Semiconductors
- Semiconductor Devices
- Junction Transistor
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Solid Deformation
- Solid State Physics
- Solid Deformation
- Stress
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- Relation Between Elastic Constants
- Elastic Behavior Of Solids
- Tensile Stress
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- Elastomers
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- Bulk Modulus Of Elasticity Definition Formula
Sound
- Sound waves
- Timbre
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- 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
力主要定义对物体的拉动或推动,力是物体运动中最重要的部分。它也可以被称为两个物理体之间的定量相互作用。这里的两个物体是环境和物体。在这一部分可以看到不同类型的力,其中接触力和非接触力是最重要的。在本部分中,非接触力分为三部分——核力、引力和电磁力。接触力也有许多变化,如张力、空气阻力、摩擦力、法向力、作用力和弹簧力。这些是物理学中力类型的主要概念。
What is force?
力与改变或倾向于改变特定物体运动状态的外部效应有关。如果身体在运动,它就会静止。同样,如果一个力施加于处于静止状态的身体,身体就会运动。所施加的力也可能导致身体运动方向的改变,并且还会继续改变物体的形状和大小(geeksfogekes 2022)。例如,门的推拉是通过施加一定的力来完成的
力也被归类为矢量。这意味着力既有大小的量,也有方向的量。根据牛顿第二定律,力被定义为物体的质量和加速度的乘积。力的国际单位制单位是牛顿,用N表示。
Different types of forces
力主要分为两类,即接触力和非接触力。第一种与涉及与身体物理接触的力有关。第二种不涉及任何物理接触。
接触力包括张力、弹簧力和作用力。
Tension force
这是通常施加在电缆、绳索或细绳末端的力。力指向物体的长度,它从两端均匀地拉动能量(oxscience 2022)。在数学上,
T=mg+ma,这里T是张力,m是质量,g是作用在物体上的重力
Spring force
这被归类为恢复力,也就是说,如果一个力作用在一个压缩或拉伸的特定物体上,那么作用力就会恢复平衡位置。在数学上,它被提到为
F=kx,这里F是弹簧力,K是弹簧常数,x是拉伸和压缩的距离
Appped force
这种力由一个物体施加在另一个物体上,导致物体速度的改变或物体方向的改变。
Figure 1: Push and pull
有三种作用力
Push - That is the object is being pushed. It is by far the most common form of appped force in nature.
Pull - It is associated with pulpng an object. For example, pulpng a door.
Drag- This requires the active participation of two bodies. It is an event where one body drags the other.
Figure 2: Non-contact forces
非接触力与不涉及彼此之间任何物理接触的力相关联。有三种类型的非接触力。
Gravitational force: This force acts between two bodies of some distinct amount of mass (sciencefacts 2022). This force is also referred an attractive force.
Electrostatic force: The force acts between two charged bodies. For example, rubbing the scale of woollen cloth for some time and then getting it close to a piece of paper attracts the paper.
Magnetic force: it is a non-contact force. This force acts between iron and magnets.
Effects of force
力有多种作用,力的作用会使身体加速或减速。它有助于给身体运动,正是通过它可以提高运动物体的速度(Zhang等人,2018)。力的作用的另一个重要部分是,通过施加力,运动物体的速度也会降低。物体的方向可以通过施加力来改变。物体的大小和形状会受到力的影响。
Conclusion
物理学中的力只不过是外部原因。病因主要是改变身体的状态。施加力可以使物体停止运动。该应用程序还可以帮助移动对象。力的施加也会改变物体的方向、大小和形状。力的一个例子是通过施加力来拉动窗户。它是一个矢量,既有方向也有大小。力的国际单位制单位是牛顿(N)。
FAQs
问题1.力的概念是什么
力是物体在一个方向上的运动。它是物体在两个物理物体之间相互作用的拉动或推动。施加力可以使物体停止运动。它也有助于物体在一个方向上的移动。
Q2.可以看到多少种类型的接触力
在物理学中,接触力有六种类型,它们发生在远处。它们是法向力、摩擦力、作用力、空气阻力、张力和弹簧力。
Q3.非接触力有哪些类型
地球上存在的非接触力主要有三种类型。它们是引力、电磁力和核力。所有的力都有不同的应用。
Q4.引力是什么意思
引力是指由于物质的存在而作用在物体之间的力。地球对物体的引力就是一个例子。