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# Physics

Articles related to class 9, 10, 11, 12 and B.Sc.

## Different type of Forces and their origin

A) Normal Force: When we put a book on a table ,the molecules of the book exert downward forces on the molecules of the table.The molecules composing the upper layer of the tabletop move downward until the repulsion of the molecules below balances the forces applied by the book.

## Some helpful Tips for Thermodynamics

Thermodynamics is a scoring chapter in JEE physics. Here are some Some helpful Tips for Thermodynamics to solve the problem correctly and quickly Tip 1. Always make sure you Heat(Q) ,Internal Energy(U) & Work(W) with correct sign in equation$\Delta U=Q-W$ W is positive when work done by the system(Increase in Volume)W is negative when work done

## Physics project for class 12

Introduction to physics project for class 12 Physics investigatory projects for class 12 carry 3 Marks in the Final Examination. Let us take a took at some important concept What is Science: Our knowledge of the natural world and the process through which that knowledge is built The process of science involves many layers of complexity,

## How to Solve Newton’s Second Law Problems

Scope of the Problem:

How to attack at the Problem
1) Draw one free body diagram for each object in problem

Read the following two post to get the feel about free body diagram

## CBSE Class 12 Physics syllabus 2023-2024

Here is the CBSE Class 12 Physics syllabus 2023-2024 CLASS XII (THEORY) (Total Periods: 180) Unit I: Electrostatics (Periods 25) Electric charges and their conservation. Coulomb’s law – force between two point charges, forces between multiple charges; superposition principle and continuous charge distribution. Electric field, electric field due to a point charge, electric field lines; electric

## Dimensional formula of strain

Introduction: Understanding Strain in Physics In physics, particularly in the study of elasticity, strain is a key concept. It is a measure of deformation representing the displacement between particles in a material body. Strain quantifies the relative change in shape or size of an object due to externally applied forces or a change in temperature.

## Class 11 Physics Chapter 1 Notes – Physical World

Physical World Class 11 Notes Physics Chapter 1 Class 11 Physics Chapter 1 Notes: Welcome to our comprehensive notes on the chapter called ‘Physical World’ of class 11 physics NCERT book. This chapter provides an overview of the broad and diverse field of physics. It explores the scope of physics, its interaction with technology and

## Concept of motion and rest in physics

An object is said to be in state of motion if its position changes with the passage of time. If the position of the object does not change with the passage of time then the object is said to be at rest. We have now define what is motion and to describe it we consider simplest form of motion that is motion of any object in one dimension for example car moving on the road. To determine the position of car at different times , we could measure its distance from starting point and record all these observations. These observations can be recorded in form of a table or we can draw a distance versus time graph for the motion of the car and see how it is moving.