Force in Physics – Hub of related Posts

Friction may be of different types depending on when and how it evolves and varies. Let's find out the fundamentals of static friction and dynamic friction. Static Friction Static friction: ...

Here, on this page, you can use a web-based Force calculator. Force Calculator Mass (kg): Acceleration (m/s²): Force (N): Calculate Let's see how to use this calculator. - You have ...

We will talk here about a person's Apparent weight in an elevator referring to bathroom scale reading in the elevator. The apparent weight of a person in an elevator depends ...

In this post, Force and Pressure Class 8 Worksheets, you will find a worksheet based on Force and Pressure for class 8 students. Very Short Answer Type Questions 1) State ...

In this post, we will solve a set of Force Numerical problems for class 8 students. In the next section, you will find a set of formulas that are used ...

Question 1) The density of mercury is 1.36 × 104 kg m–3. Calculate the length that a mercury barometer will have when the atmospheric pressure is 101 kPa. Answer 1) ...

Let's see how Mercury Barometer expresses atmospheric pressure in terms of the length or height of the mercury column as a variant of the manometer. Mercury Barometer Mercury Barometer can ...

Use of U-tube manometer The U-tube manometer is used to measure pressure differences between two gases; typically one of these is air at atmospheric pressure. pressure difference formula used The ...

Question 1) A swimming pool contains water with a density of 103 kg m–3. Calculate the pressure due to the water at a depth of 4.5 m. Ignore the effect ...

In this post, we will discuss Liquid Pressure and related topics. What is liquid pressure | What is liquid pressure for class 8 Liquid pressure is the pressure exerted by ...

In this post, we will solve a few selected Numericals on Moment of Force for class 10. We have another post on Force Numericals for class 10 where you will ...

In this post, we will solve a set of numerical problems based on force, and moment of force from the syllabus of class 10 Physics of ICSE board. Force Numericals ...

Numerical Question on friction and air drag: A 1500 kg car has a front profile that is 1.6 m wide by 1.4 m high and a drag coefficient of 0.50 ...

Friction & Power based Numerical Problem: A factory uses a motor and a cable to drag a 300 kg machine to the proper place on the factory floor. What power ...

Friction Numerical Problem) A block of mass 0.500 kg slides on a flat smooth surface with a speed of 2.80 m/s. It then slides over a rough surface with μk ...

Friction Numerical Question) A 4000 kg truck is parked on a 15 degrees slope. How big is the friction force on the truck? Solution figure 1 The forces which act ...

Friction Numerical Problem) A smooth wooden 40.0 N block is placed on a smooth wooden table. A force of 14.0 N is required to keep the block moving at constant ...

Friction numerical Question]If the coefficient of sliding friction between a 25 kg crate and the floor is 0.45, how much force is required to move the crate at a constant ...

Numerical Question: A 52 N sled is pulled across a cement sidewalk at a constant speed. A horizontal force of 36 N is exerted. What is the coefficient of sliding ...

When several forces act simultaneously on the same body, then the combined effect of the multiple forces can be represented by a single force, which is termed as ‘resultant force’ ...

In this post, we will list a set of examples of Inertia (in fact, for all 3 types of inertia) for class 9 students. Examples of Inertia An athlete runs ...

In this post, we will solve numerical problems based on Newton's Second Law of Motion. Basically, these problems will be solved with the help of the equation of force in ...

The falling of an object from a height towards the earth under the gravitational force of the earth (with no other forces acting on it) is called free fall. And ...

In this post, we will solve Numerical problems based on the Force and Pressure chapter of class 8 science. Here, first, we will go through the formula of pressure & ...

In mechanics, we can also express power in terms of force and velocity. In this post, we will derive the relation between power and velocity. First, we will follow a ...

In this post, we will find out what unbalanced forces are. This will be as per the class 9 syllabus.Also, read about Balanced forces What is an unbalanced force? If ...

In this post, we will find out what balanced forces are. This will be as per the class 9 syllabus. Also, you may read about Unbalanced force. What is a ...

The earth attracts every object towards its center with a force that depends on the mass of the body and the acceleration due to gravity (g) at that place. The ...

In this post, we present a set of multiple-choice questions on Force and Laws of Motion class 9 MCQ. The answers to these MCQs are given after each question. Also, ...

Work done by a conservative force in a closed loop is zero. We will show that mathematically here. Read this related topic: Conservative force vs Non-conservative force - a comparative ...

Newton’s second law of motion provides us with the formula of force. We will use different forms of this formula in this post to solve a set of Numerical Problems ...

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 ...

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 ...

In this post, we have solved a set of Thrust and Pressure Numericals for class 9. Before that, we will go through the formulas used to solve these force and ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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) ...

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 ...

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 ...

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 ...

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 ...

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 ...

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, ...

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 ...

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 ...

This post presents a Force & Laws of Motion class 9 Worksheet for high school students. This worksheet with multiple choice questions is based on the chapters (a) Laws of ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Here we will solve a set of Friction Numericals based on the concepts of frictional force or friction and friction coefficient for class 11 and class 12 students. Here are ...

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 ...

Statement of three laws of Motion along with their concept building - that is the objective of this post. Statement of three laws of Motion Here we state the 3 ...

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 ...

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 ...

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 ...

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 ...

Here goes a set of Circular Motion Problems. This set contains Physics numerical problems on centripetal force and uniform circular motion for class 11. Solutions are also appended in this ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Coulomb Force Strength versus Gravitational Force Strength - How Strong is the Electrostatic or Coulomb Force Relative to the Gravitational Force? To find this we will calculate the electrostatic force ...

Often we hear these two terms as we discuss Work and Force in our physics class - conservative force and Non-conservative force. Here we will talk about these two and ...

This post will tell you what FBD is, the definition and full form of FBD, and its purpose in physics and mechanics. Also, you will get a step-by-step guide on ...

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 ...

In this post, we will discuss the concepts of the Banking Angle & Banked Curve. Then we will study the Banking angle formula and perform the derivation of the Angle ...

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 ...

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 & ...

In this post, you will find a set of Pressure Numericals for class 9, where we have solved selected practice problems based on the Pressure formula (in terms of thrust ...

If we dive to the bottom of a swimming pool, we will feel the water pressure pushing into our ears. This pressure is created by the weight of the water ...

To understand the concepts of pressure in physics we will go through the following subtopics: (1) definition of pressure in physics (2) formula of pressure in physics and (3) SI ...

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 ...

In this post, we will first define the term Relative Velocity, and then understand its necessity and importance to study the motion of an object. We will go through a ...

In this post, we discuss the meaning and definition of inertia. Inertia is an important concept in the kinematics chapter of physics. Understanding it helps us to get an idea ...

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 ...

This page presents a set of Force and Laws of Motion class 9 Numericals. We have used linear motion equations and force equations to solve these numerical problems. [detailed solution ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 surface. The resistance ...

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 ...

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 ...

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) ...

 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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

"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 ...

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 ...

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 ...

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 ...

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 ...