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NCERT

Physics XI Part-I

NCERT via Swayam

Overview

The world around us has an astonishing variety of phenomenon. Science /Physics gives us a chance to take a closer look and try to understand these. We have evidence to support the work done since ancient times by thinkers, philosophers and scientists. They tried to unravel the mysteries around us. The excitement of learning, to do systematic scientific work is the root of this course. You will learn methods of measurement-including universally accepted norms. Kinematics, that helps us to describe any motion and dynamics which helps us to identify the causes of motion. Some energy is required to move things and we will define these in scientific terminology in a way that communication about physics to others is easy. In this course we will learn about different ways bodies move vis motion in a straight line, in a plane. You will also learn about system of particles, rigid body rotation and extend it to explore gravitation. We have to first understand the basics, therefore in times when scientific skills are far advanced as compared to what they were many years ago, we will still revisit those ideas and study physical laws within limits. Understanding the fundamental rules of nature, help us to extend them to more complex situations in real life. Mathematics. is important for the physics course because it lends excitement to it We will first learn the physical concept and only then apply appropriate mathematics to it. we will use new mathematical operations like vector algebra, basic differentiation and integration, in physics, problems with numbers are called numerical, these lend excitement to the course. We will help you learn methods of solving these with ease by several examples throughout the course.This course has 6 unitsPhysical world and measurementKinematicsLaws of motionWork, Energy and PowerMotion of system of particles and rigid bodyGravitationThe aim and design of the course is to develop a deeper understanding of different concepts in Physics. As you work through the course you will find lecture videos, e-text, suggestions for problem solving methods, animations, practice questions, study guides. Assignments and Tests to keep track of your achievements. This course is divided into 41 modules for better understanding.

Syllabus

Unit No.

Module No.

Module Name

Unit 1 –

Physical World and Measurements

Module 1

Physics and its Scope

Module 2

Units and Measurements

Module 3

Errors in Measurements

Module 4

Dimensional Analysis

Extra Reading Materials

Unit 2 –

Kinematics

Module 5

Rest and Motion

Module 6

Distance and Displacement

Module 7

Speed and velocity

Module 8

Accelerated motion

Module 9

Solving Problems using equations of motion

Module 10

Vectors

Module 11

Projectile Motion

Module 12

Circular motion

Module 13

Problems on motion in two dimensions

Module 14

Mathematical Tools For Solving Problems

Extra Reading Materials

Unit 3 –

Laws of Motion

Module 15

Newton’s first law of motion

Module 16

Newton’s second law of motion

Module 17

Third law of motion

Module 18

Types of forces

Module 19

Friction

Module 20

Circular motion and Banking of roads

Module 21

Solving problems using Newton’s laws of motion

Extra Reading Materials

Unit 4 –

Work, Energy and Power

Module 22

Work

Module 23

Kinetic Energy of moving bodies

Module 24

Conservative and non-conservative forces and potential energy

Module 25

Spring and Force Constant

Module 26

Problem based on Work-Energy Theorem

Module 27

Collision

Module 28

Collision in two dimension

Extra Reading Materials

Unit 5 –

Motion of System of Particles and Rigid Body

Module 29

Rigid body Motion

Module 30

System of Particles

Module 31

Rotational kinematics -Equation of Motion

Module 32

Moment of Inertia

Module 33

Torque

Module 34

Mechanical Equilibrium

Module 35

Angular Momentum

Module 36

Rolling Motion

Extra Reading Materials

Unit 6 –

Gravitations

Module 37

Kepler’s laws ofplanetary Motion

Module 38

Acceleration due to gravity

Module 39

Gravitational field and Gravitational potential

Module 40

Satellites and their launching

Module 41

Numerical problems based on Gravitation

Extra Reading Materials

Final Assessment

Taught by

Anuradha Mathur

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