Force in Physics – Hub of related Posts

The following 2 sections will briefly cover the following:1) How in a simple machine input force (effort) is converted to output force or resistance force?2) How in a simple machine ...
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We use different types of machines in our daily life. They may be simple machines or complex machines. 1>Simple machines - Some machines are simple tools or simple machines like ...
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In this post, we have solved a set of Thrust and Pressure Numericals for class 9. Thrust and Pressure Numericals for class 9 (Q1) Calculate the pressure exerted by a ...
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In this post, you will find a List of Common circular motions and the sources of centripetal force (in tabular format) for each of these motions. Any force can be ...
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In this post, we will define centripetal force and centrifugal force, and find out how these two differ from each other. We will also go through some examples of these ...
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A block and tackle is a compact system of pulleys designed to raise heavy loads. The block and tackle system has one cable or rope wound around two separate sets ...
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In this post, we will see how the coefficient of static friction (μs) = tan θ, where θ is the angle of inclination where static friction becomes the highest. In ...
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In this post, we will cover the definition and formula of the coefficient of restitution. We will also see how types of collision can be determined from the value of ...
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Three things are worth noting about frictional forces: these fundamental points will help you to understand friction as a force, answer questions from the friction chapter and solve numerical problems ...
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In this post, we will discuss three types of pulleys, and how they operate, and how they differ in their operation and utilities. The types we will discuss are (1) ...
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In this post, we will study a few examples of Inelastic collisions. Also, we will study an important practical use of Inelastic collisions. When objects stick together or are joined ...
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In this post, we will briefly mention the equations valid for elastic collisions. We can use these equations to solve numerical problems related to elastic collisions. The Equation for the ...
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An explosion can be thought of as a single object separating into two or more fragments. In this post, we will see if the law of conservation of momentum is ...
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The position of the center of mass of a body affects whether or not it topples over easily. This is important in the design of such things as tall vehicles ...
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In this post, we will see how to find the centre of mass using a plumb line. Suppose we have to find the centre of mass of an irregularly shaped ...
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The image below shows a list of equations and formulae from the chapter "Forces" of the GCSE Physics syllabus. This is also helpful for all other equivalent boards like CBSE, ...
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In this post, we will analyze one Atwood machine when its pulley has a non-zero mass. As a result this pulley has a nonzero moment of inertia. when pulley has ...
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In this post, we will discuss the Center of Mass and its Momentum & velocity. Center of mass - for a single object & for collection of masses The center ...
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This post presents a Force & Laws of Motion worksheet for class 9 (MCQ worksheet) with multiple choice questions taken from the chapters (a) Laws of motion & (b) Force ...
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In this post, we will derive the equation of centripetal acceleration using trigonometry. In a different post, we have done the derivation of the equation of centripetal acceleration using differential ...
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We need to reduce or increase friction in different situations, depending on our requirements and benefits. Here, in this post, we will list down some efficient ways to reduce friction ...
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A lot of problems we discuss involve ropes and strings. Most of the time, we assume that they are massless, or more precisely, that the mass of a string is ...
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In this post, we will see how Newton's third law can be derived from the equation of conservation of momentum. Derive Newton's third law from the equation of conservation of ...
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In this post, we will discuss 8 common forces we find in Physics. For every such force type, we will find out the cause or reason or source of the ...
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In this post, we will cover a bunch of questions and equations from the Uniform Circular motion chapter. When a particle moves in a circle with constant speed, the motion ...
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Let's discuss the application of forces to change the shape of an object and the concept of elasticity related to this shape change. We will cover the stretching of spring ...
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In this post, we will derive formulas of centripetal acceleration & centripetal force while we discuss the uniform circular motion. Uniform circular motion & its acceleration An object moving with ...
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In this post, we will solve a numerical problem based on the principle of a car hydraulic braking system. To solve this numerical, we will take the help of the ...
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In this post, we will list down the differences among the 3 primary types of collisions, elastic, inelastic & perfectly inelastic collisions. Among these types of collisions, elastic and perfectly ...
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A pulley is a grooved wheel with a rope, chain, or cable running along the groove. A pulley can change the direction of the input force or increase the output ...
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Improving safety and reducing injuries is a critical application of impulse. In many cases, an object must be brought to a complete stop from a given initial velocity. This indicates ...
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In this post, we will solve a numerical problem based on the equilibrium of a leaning ladder. To do this you need to first understand the conditions of equilibrium. If ...
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Pressure gauges measure the pressure exerted by a fluid, in other words by a liquid or a gas. We will cover 3 types of pressure gauges here, and these are ...
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Pascal's Law states that any change in the pressure applied to a completely enclosed fluid is transmitted undiminished to all parts of the fluid and the enclosing walls. Let's see ...
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This post discusses a typical experimental setup for the Measurement of coefficients of friction. As you well know, it’s easier to push an object from one point to another than ...
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Car safety, momentum & force (GCSE Physics) - Here, we will discuss how momentum and force in physics can influence car safety and its design. The force on a person ...
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Of all simple machines, the mechanical advantage is easiest to calculate for pulleys. To find out the mechanical advantage of a Pulley, simply count the number of ropes supporting the ...
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You must have noticed that the racing car tires are made of rubbers, but without any treads. But why is it so? To answer this we have to compare Racecar ...
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There are different ways to reduce friction. One way to reduce friction and increase the efficiency of devices such as generators, motors, and fans is to use bearings. Bearings are ...
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This post gives a preliminary idea of how physics fundamentals like friction and Newton's laws of motion are involved in the design aspects of running shoes. Nowadays when sports have ...
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Here we will focus on solving numerical problems involving frictional force or friction and friction coefficient. We will take up a few sample problems as examples and solve those using ...
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Mechanical Advantage (MA) is the ability to lift or move objects (load) with a large output force while applying only a little input force. The trade-off is that you must ...
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Here we state the 3 laws of motion: Newton’s 1st Law of motion states that Every body continues in its state of rest, or of uniform motion in a straight ...
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The acceleration in a uniform circular motion (Fig. 1) has some similarities to the acceleration in projectile motion (Fig. 2) without air resistance, but there are also some important differences ...
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This Gravity and Mechanical energy Notes [PDF] is primarily for the 10th grade physics syllabus of different international boards. This also covers the class 10 physics syllabus on Gravity and ...
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This Force, Momentum, Impulse Notes [PDF download] is primarily for the 11th grade physics syllabus of different international boards. This also covers the class 11 physics syllabus on Electric Circuits ...
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The contact force provided by a surface that is perpendicular to another surface is called the normal reaction force. It is often abbreviated to the normal force and represented by ...
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Here goes a Physics numerical problems worksheet on centripetal force and circular motion. Solutions are also appended in this post for our students. Physics numerical worksheet on centripetal force & ...
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Here you will get 2 sets of IGCSE physics force and motion worksheet with numerical problems with solution. You will get ample scope to test your understanding of motion equations ...
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IGCSE Physics Definitions from the Forces and Motion chapter are listed below. It contains definitions for vector, scalar, torque, CG, velocity, force, acceleration, and important laws like Newton's laws of ...
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We will see here how to determine g in the laboratory. g is the symbol of acceleration due to gravity. The basic idea behind determining g in the laboratory is ...
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Here we will discuss the motion graphs of vertically falling objects when air-drag or air-resistance is present. Certainly, it's not a free fall as during free-fall air drag is ignored ...
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The stability of an object is related to the position of its center of gravity (CG). If the vertical through the CG passes through the base of an object, then ...
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This post covers how Collisions and Newton's Laws of Motion are related. As collisions, we can take examples of the interaction between two bodies (gun-bullet, skater-skateboard, hose-water). For simplicity let ...
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This post presents Numerical problems on Equilibrium. This physics worksheet will help students who are preparing for AP Physics, IIT JEE, and other competitive examinations to test their preparedness. This ...
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Here is a numerical worksheet based on Collision physics that includes numerical problems related to elastic and inelastic collisions. Here is another set of solved numerical problems you must try ...
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Acceleration due to gravity of a body is independent of its mass - let's show it mathematically. We will consider a body of mass m on the surface of the ...
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In this post we will solve Numerical problems on Terminal Velocity. Here is the first set. Numerical problem on Terminal Velocity with solution 1 ) Find the terminal velocity of ...
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Here we will work on the derivation of the Terminal Velocity equation or formula using Stokes' Law. We will consider a situation where a solid sphere moving slowly in a ...
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Stokes' Law and its formula: Eminent physicist Sir Stokes investigated fluid dynamics and came up with an equation for the viscous drag (F) on a small sphere at low speeds ...
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In this post, we'll first discuss what the Centre of Gravity is. And then we'll quickly list down where to find the centre of gravity in some regular objects easily.In ...
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Collisions are often classified according to whether the total kinetic energy changes during the collision and as per this classification collisions are of 2 types, Elastic collision, and Inelastic collision ...
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We will first see what Pascal's Principle or Pascal's Law states. Then we will find out with formula and diagram how to apply Pascal's Law to explain the operating principle ...
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How Strong is the Electrostatic or Coulomb Force Relative to the Gravitational Force? To find this we will calculate the electrostatic force and the gravitational force between an electron and ...
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Often we hear these two terms as we discuss Work and Force in our physics class - conservative force and Nonconservative force. Here we will talk about these two and ...
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This post will tell you what a Free Body Diagram or FBD is. Also, you will get a step-by-step guide on How to draw an FBD while solving a problem ...
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Parachute motion under the influence of gravity and air drag (resistance) and the speed-time graph of this fall - This is the topic of this post. And we will cover ...
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Banking Angle - what is the banking angle and why is it important?When a car travels without skidding around an unbanked curve, the static frictional force between the tires and ...
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In this post, we will focus on numerical problems based on inclined plane physics. We will list down the problems and solve them one by one. Numerical problems based on ...
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Let's Define the Inertial frame of reference and the Non-inertial frame of reference. A frame of reference can be any one of these two types: Inertial frame of reference & ...
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In this post, you will find a set of Pressure problems and solutions, where we have solved Practice problems based on Thrust and Pressure Numericals for class 9. With the ...
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Variation of pressure with depth in a fluid of constant density or How does pressure varies with depth in a fluid of constant density? - this is the topic of ...
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Let's go through the following subtopics: (1) Pressure definition (2) formula of pressure and (3) SI unit of pressure Definition of Pressure Pressure (P) is defined as the normal force ...
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In this post, we will discuss the forces acting on a mass sliding down an inclined plane. To do this we will take the help of the concepts of Vector ...
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Relative velocity: The velocity of an object measured by a moving observer is referred to as the relative velocity. The relative velocity is the difference between the velocity of the ...
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Inertia: From Newton’s first law of motion we get the definition of inertia. As per this law, an object can’t change its state of motion by itself. If the object ...
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This post is entirely focused on the Friction coefficient (also known as the coefficient of friction). We will define it and find out its types. Also, we will derive equations ...
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This page presents a few sets of force and laws of motion class 9 numericals. We have used linear motion equations and force equations to solve these numerical problems. [detailed ...
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Here in this tutorial, we will study a few pulley systems to find out how to solve pulley tension problems as well. Pulley in Physics is one of the most ...
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Apparent weight of a moving car over a convex or concave bridge is the amount of Normal Reaction the car receives while traveling over the bridge. Here the system consists ...
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In this post, we will State and Prove the Impulse Momentum Theorem with the derivation of the equation. As evident, this theorem or principle is related to impulse and momentum ...
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Impulse Definition If a force acts on a body for a very brief time then we say that an impulse is generated. As example, when we hit a ball with ...
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Elevator problems in physics with pseudo force - When an elevator is moving with an acceleration, it becomes a non-inertial frame of reference. We find it difficult to apply Newton's ...
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Friction / Friction definition: If we either slide or attempt to slide a body over a surface, the motion is resisted by a bonding (cold-weld) between the body and the ...
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Newton’s Second Law states that the rate of change of momentum of a body is directly proportional to the net force applied on it, and this change in momentum takes ...
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Physics problems with pseudo force with solutions- these problems are going to be related to the noninertial frame of reference.Let's solve an interesting numerical.A smooth inclined plane with an angle ...
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Application of newton's laws: Newton's laws of motion give us concepts of force (first law), measurement of force with its equation (second law), and the reaction of force (3rd law) ...
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 What is a pseudo force? - Some forces are real, whereas others are not. Real forces have some physical origin, such as a gravitational pull, frictional force, or tension of ...
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A rigid body is said to be in mechanical equilibrium if both its linear momentum and angular momentum are not changing with time. In other words, the body is in ...
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Newton's third law of motion states that to every action there is an equal and opposite reaction. This means for every action or force exerted by the first object on ...
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In this post we will discuss how does an astronaut feel weightless in a nearby orbit and what is the secret behind this weightlessness in a satellite? To start with ...
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Today's topic is Critical velocity in a vertical circular motion. Once we are done with its definition we will derive the Critical Velocity formula. Definition: The minimum velocity of an ...
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Here we will discuss in detail the terminal velocity and Terminal Velocity Equation. Before that, we will also cover a few important pointers on free fall and then discuss Air Drag ...
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Centripetal Force concepts & facts with examples and Washing machine: In this post, we will discuss the fundamental concepts of centripetal force & its real-life examples like how the centripetal ...
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In this topic, we will see an application of Newton's Second Law in 5 selected cases of Elevator movement, which will help us to solve elevator problems in Physics with ...
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"If Friction is a force that opposes motion then how friction helps in walking?" As we walk we apply a contact force on the surface below and that surface also ...
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Mass and Weight - are they the same or different? Mass and weight are different. Mass is the quantity of matter; it is an absolute measurement of how much matter ...
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The frame of reference and Newton's first law of motion - This law says that if the sum of all the forces acting on a particle is zero then a ...
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Hope you have seen people pushing their car when it's not starting due to some issue.When someone is pushing a car or something like that, he first pushes the ground ...
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In this post, we will discuss the fundamentals of Force in physics which will include the definition of force and force formula, types and examples of force, reference to Newton's ...
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