Table of Contents

## Introduction

Force is the action of one object on another that changes the motion of that object. It can be used to describe a push or a pull. In physics, force is described as an interaction between two bodies that causes changes in motion, momentum, and/or energy. The basic definition of force is a push or pull on an object that results in the displacement of the object. It can be measured in Newtons (N). Types of force include gravitational force (the tendency for objects with mass to attract each other r), the electromagnetic force (the attractive and repulsive forces between charged particles), and weak nuclear force (which governs radioactive decay).

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## The basic definition of force is a push or pull on an object that results in the displacement of the object

Force is a push or pulls on an object that results in the displacement of the object. In other words, it is the action of one object on another that changes the motion of that object. It can be measured in SI units as newtons (N), kg·m/s2 (kg·m/s2) or lb·ft/s2.

Force has magnitude and direction; it is a vector quantity. The SI unit for force is Newton (N).

In everyday life we encounter many situations where forces are required to effect change in other objects and ourselves: pushing against something to move it, pulling ourselves up a rope using our hands and arms, opening doors by pulling them against hinges etcetera.*

## It is measured in Newtons (N)

Force is the rate at which work is done or energy is transferred. In physics, force is any agent that can make a body change its velocity – either increase or decrease. Force has many applications in medicine, engineering, and daily life.

It is measured in Newtons (N). Other units of force used widely are pound-force (lbf), kilogram-force (kgf), and dyne. A Newton is the amount of force required to accelerate 1-kilogram mass at 1 meter per second squared

## Types of force include gravitational force, electromagnetic force, weak nuclear force, and strong nuclear force.

Forces are classified into two types – conservative and non-conservative forces.

Conservative forces are always associated with the transfer of energy, while non-conservative ones do not involve any transfer of energy. The gravitational force is conservative as it always involves the transfer of energy between two objects. In contrast, electromagnetic forces such as electric and magnetic fields do not involve any such transfers of energy.

## The formula for Force = Mass x Acceleration

Force is a vector quantity and is defined as the action of one body on another body. It can also be said that Force is defined as the tendency to change the state of rest or motion in an object.

To express force mathematically, we use Newton’s second law of motion which states that: “The rate of change in momentum (mass times velocity) of a body equals the applied force acting on it.”

In simple words, this means that if we want to calculate or measure force then we need to know mass and acceleration. This formula can be written in terms of distance, velocity, or time depending upon what needs to be measured from our experiment.

## Ohm’s law, Bernoulli’s principle, and Bernoulli’s Equation are some applications of force

Ohm’s law is a formula used to calculate the resistance of a circuit. It was formulated by German physicist Georg Simon Ohm in 1827 as a mathematical relationship between voltage, current, and resistance in electrical circuits.

Bernoulli’s principle states that an increase in the speed or velocity of a fluid occurs simultaneously with a decrease in pressure or force per unit area.

Bernoulli’s equation is used to calculate the flow rate (volume flow rate) of fluids, such as liquids and gases that are flowing along streamlines.

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## Force is the action of one object on another that changes the motion of that object

Force is the action of one object on another that changes the motion of that object. The basic definition of force is a push or pull on an object that results in the displacement of the object. It is measured in Newtons (N). In physics, different types of forces are explained concerning Newton’s laws:

The first law states that if no external force acts on an object, it will remain at rest or move with constant velocity. This law also implies that if an unbalanced force acts on an object, then its speed will change in proportion to the size and direction of this force.