# Physics - Class XI Resources

The following list of online resources are provided as a sample of curated resources. New resources shall be added as we come across interesting and relevant online materials.

#### 1. Rest And Motion, Position And Path Length Of An Object

Description: Explanation of rest, motion, position, and path length of an object.

Core Concepts: Rest, motion, and position.

#### 2. Rest And Motion, Position And Path Length Of An Object

Description: Explanation on concept of rest and motion, position and path length.

Core Concepts: Rest and motion.

#### 3. Position, velocity and acceleration

Description: Explanations on position, velocity and acceleration.

Core Concepts: Position, velocity and acceleration.

#### 4. Graphical analysis of velocity and acceleration

Description: Explanation on graphical analysis of displacement-time relation and velocity-time relation.

Core Concepts: Instantaneous Velocity: displacement-time relation and velocity-time relation.

#### 5. Kinematic Equations of Motion

Description: Explanation on derivation of kinematic equations.

Core Concepts: Kinematic equations: Equations of motion.

#### 6. Addition and subtraction of vectors

Description: Explanation on process to determine the magnitude and direction of the resultant vector.

Core Concepts: Vectors: magnitude and direction of the resultant vector.

#### 7. Addition and subtraction of vectors

Description: Tutorial for the interactive simulation of vector addition.

#### 8. Projectile motion

Description: Explanation of projectile motion.

Core Concepts: Projectile motion.

9. Newton’s First Law of Motion

Description: Explanation based on Newton’s First Law of Motion.

Core Concepts: Newton’s Laws of Motion: First.

#### 10. Newton’s Second Law of Motion

Description: Explanation of Newton’s Second law of motion.

Core Concepts: Newton’s laws of motion: Second law.

#### 11. Newton’s Third Law of Motion

Description: Explanation of Newton’s Third law of motion.

Core Concepts: Newton’s Laws of Motion: Third law.

#### 12. Conservation of momentum

Description:  Concept of conservation of momentum deduce though simulation.

Core Concepts: Conservation of momentum.

#### 13. To calculate the momentum

Description: The online apps help in calculating the momentum.

Core Concepts: Conservation of Momentum: Online calculation.

#### 14. Rotational motion

Description: Explanation on the concept of rotational motion and centripetal acceleration.

Core Concepts: Circular motion: Rotational motion and centripetal acceleration.

#### 15. Centripetal Force Apparatus

Description: Demonstration of circular motion using centripetal force apparatus.

Core Concepts: Circular motion: Centripetal force apparatus.

#### 16. Demonstration of Circular motion

Description: Demonstration of circular motion using centripetal force apparatus.

Core Concepts: Circular motion: Centripetal force apparatus.

#### 17. Hooke’s law

Description: Explanation to verify Hooke’s law law through simulation.

Core Concepts: Elastic behavior of solids: Hooke’s law.

#### 18. Elastic behaviour of solids

Description: Explanation of elastic behaviour of solids and types of stress and strain.

Core Concepts: Elastic behavior of solids: elastic behaviour of solids and types of stress and strain.

19. Types of stress and strain

Description: Explanation of elastic behaviour of solids and types of stress and strain.

Core Concepts: Elastic behavior of solids: Stress and strain.

#### 20. Stress and strain curve, and work done by the spring force

Description: Explanation on stress and strain curve, and work done by the spring force.

Core Concepts: Elastic behavior of solids: Stress and strain curve, and work done by a spring force.

#### 21. Tensile test

Description: Explanation on how to calculate the strength of steel.

Core Concepts: Elastic behavior of solids: Tensile test.

#### 22. Young Modulus of wire

Description: Determination of the value of Young’s modulus of wires.

Core Concepts: Elastic behavior of solids: Young’s modulus of wires.

#### 23. Gravitational force

Description: Explanations of  gravitational force.

Core Concepts: Work: Gravitational force.

#### 24. Potential energy due to gravity

Description: Determination of potential energy due to gravity.

Core Concepts: Work: Potential energy due to gravity.

#### 25. Conservation of mechanical energy

Description: Explanation on conservation of mechanical energy.

Core Concepts: Conservation of mechanical energy.

#### 26. Kinetic energy and potential energy

Description: Explanation on kinetic energy and potential energy with its numerical question.

Core Concepts: Conservation of mechanical energy: Potential energy and potential energy.

#### 27. Conservation of Energy

Description: Explanation of conservation of energy.

Core Concepts: Conservation of energy.

#### 28. First law of thermodynamics

Description: Explanation to prove the first law of thermodynamic through simulation.

Core Concepts: Heat, Internal Energy and Work : First Law of Thermodynamic.

#### 29. Magnetic field around the wire

Description: Explanation  of magnetic field around the current carrying conductor.

Core Concepts: Magnetic force and field: Magnetic field around the wire.

#### 30. Magnetic force and magnetic field

Description: Explanation of magnetic force and magnetic field.

Core Concepts: Magnetic force and field.

#### 31. Magnetic field around the current carrying wire

Description: Explanation about magnetic field established around the current carrying conductor.

Core Concepts: Magnetic force and field: magnetic field due to a long straight current carrying conductor.

#### 32. Lorentz force

Core Concepts: Magnetic force and field: Lorentz force.

#### 33. Magnetic flux

Description: Description of magnetic flux based on the different orientation of the surfaces.

Core Concepts: Magnetic flux.

#### 34. Helical motion of charged particles

Description: Explanation on helical motion of charged particles in a uniform magnetic field.

Core Concepts: Motion of a charged particle in a uniform magnetic field.

#### 35. Resistor

Description: Verification of values of the resistance of the resistor using an apps.

Core Concepts: Electrical resistance: Resistor.

#### 36. Combination of resistors

Description: Calculation of effective resistance by connecting the resistors in different ways.

Core Concepts: Series and Parallel combination of resistors.

#### 37. Combination of resistors

Description: Calculation of effective resistance by connecting the resistors in different ways.

Core Concepts: Series and Parallel combination of resistors.

#### 38. Snell’s Law

Description: description of  bending of the light when traveling through the different media.

Core Concepts: Snell's law.

#### 39. Optical fibre

Description: Explanation on working of the optical fibre.

Core Concepts: Total Internal Reflection: Optical fibre.

#### 40. Formation of rainbow

Description: Verification on formation of the rainbow.

Core Concepts: Total Internal Reflection: 2D Formation of rainbow.

#### 41. Formation of rainbow

Description: Verification on formation of the rainbow through 3D simulation.

Core Concepts: Total Internal Reflection: 3D Formation of rainbow.

#### 42. Longitudinal and transverse wave

Description: Introduction to longitudinal and transverse wave through simulation.

Core Concepts: Characteristics of transverse and longitudinal waves.

#### 43. Longitudinal and transverse wave

Description: observation of the proportional relationships amongst variables (wavelength, frequency, velocity, displacement, amplitude, period).

Core Concepts: Characteristics of transverse and longitudinal waves.

#### 44. Longitudinal and transverse wave

Description: Explanation on the concept of longitudinal and transverse wave.

Core Concepts: Characteristics of transverse and longitudinal waves.

#### 45. Transverse wave model

Description: Explanation of critical attributes that describe displacement relations in a progressive waves.

Core Concepts: Progressive wave: Transverse wave model.

#### 46. Wave equation

Description: Description of  wave equation.

Core Concepts: Progressive wave: Wave equation.

#### 47. Introductory to the Electromagnetic waves

Description: Introduction on concept of the electromagnetic waves.

Core Concepts: Electromagnetic waves.

#### 48. Hertz’s Experiment

Description: Demonstrating on production of EM waves.

Core Concepts: Electromagnetic waves.

Description: Transmission of radio waves using oscilloscopes, transmitters, and receivers to transfer information and uses of three different types of radio waves.

Core Concepts: Electromagnetic waves: Radio waves.

Core Concepts: Electromagnetic waves: Radio waves.

#### 51. Mobile phone communication

Description: Explanation on working of mobile phones in transferring the information.

Core Concepts: Electromagnetic waves: Mobile phone communication.

#### 52. Propagation of EM waves

Core Concepts: Propagation of electromagnetic waves.

#### 53. Propagation of EM waves

Description: Explanation of propagation of EM waves.

Core Concepts: Propagation of EM waves.

54. Analogue Signal and Digital Signal

Description: Differences  between Analogue Signal and Digital Signal.

Core Concepts: Analogue Signal and Digital Signal.

#### 55. Analogue Signal and Digital Signal

Description: Comparison between Analogue Signal and Digital Signal.

Core Concepts: Analogue Signal and Digital Signal.

#### 56. sampling theorem

Description: Explanation on reconstruction of analogue signal.

Core Concepts: Analogue Signal and Digital Signal: Sampling theorem.

#### 57. EM waves: polarization

Description: Explanation on concept of polarization.

Core Concepts: Polarization of Electromagnetic Waves.

#### 58. Polarization interactive Simulation

Description: Explanation of polarization showing polarizer and analyser.

Core Concepts: Polarization of Electromagnetic Waves.

#### 59. Polarized light

Description: Simulation on Polarization : intensity vs position graph.

Core Concepts: Polarization of Electromagnetic Waves: Polarized light.

#### 60. Emission Spectra

Description: Explanation about light emitted by excited gas atom of particular element.

Core Concepts: Atomic Spectra: Emission.

#### 61. Hydrogen Atom Spectra

Description: Explanation  about  energy level of the hydrogen atom.

Core Concepts: Atomic spectra: Hydrogen spectra.

#### 62. Hydrogen Atom Energy Level

Description: Explanation on emission based on the transition level of the hydrogen atom.

Core Concepts: Atomic Spectra: Hydrogen atom energy level.

#### 63. Simulation on Isotope

Description: Explanation about Isotopes: balanced and unbalanced atom.

#### 64. Isotopes

Description: Introduction to the concept of Isotopes.

Description: Demonstration of  Half Life Period of a Radioactive Substance.

Core Concepts: Radioactivity: Half life period.

Description:  Interactive games on explanation about Half Life Period of a Radioactive Substance.

#### 67. Newton's Law of Universal Gravitation

Description: Explanation on Newton's Law of Universal Gravitation.

Core Concepts: Universal Law of Gravitation.

#### 68. Newton's Law of Universal Gravitation

Description: Determination of mathematical relationship between mass and gravitational force in Universal Law of Gravitation.

Core Concepts: Universal Law of Gravitation.

#### 69. Gravitational field model

Description: Gravitational field model: simulates approaching mass graphically.

Core Concepts: Universal Law of Gravitation.

#### 70. Newton’s Cannon

Description: Experimentation to  show how the motion of a familiar projectile like a cannonball is fundamentally the same as the orbit of a celestial body like the moon.

Core Concepts: Universal Law of Gravitation.

#### 71. Newton's Law of Universal Gravitation

Description: Explanation on Newton's Law of Universal Gravitation with formula.

Core Concepts: Universal Law of Gravitation.

#### 72. Gravity and orbit

Description: Explanation on gravity and orbit.

Core Concepts: Universal Law of Gravitation.

73. Satellite

Description: Explanation on different types of satellite and their applications.

Core Concepts: Satellites.

#### 74. Satellite and communication

Description: Explanation of communication with the help of satellite.

Core Concepts: Space Technology Applications.

#### 75. Satellite and Earth observation

Description: Explains how Satellite observes Earth.

Core Concepts: Space Technology Applications.

#### 76. Remote sensing

Description: Explanation on remote sensing performed by satellite.

Core Concepts: Space Technology Applications.

#### 77. Satellite and Disaster

Description: Explanation on use of satellite for natural disaster in Japan.

Core Concepts: Space Technology Applications.

#### 78. Satellite and weather

Description: Explanation on use  of satellite to monitor weather.

Core Concepts: Space Technology Applications.

#### 79. Satellite and planet’s Health

Description: Explanation on how satellites help monitor Earth’s health.

Core Concepts: Space Technology Applications.

Description: Explanation on how satellite navigation systems work.

Core Concepts: Space Technology Applications.

#### 81. Satellite and agriculture

Description: Explains agriculture monitoring with satellite.

Core Concepts: Space Technology Applications.

#### 82. Satellite and image

Description: Explanation on how satellite helps to capture images and how to analyse the data.

Core Concepts: Satellite Data Analysis.

#### 83. November issue of Bhutan space week

Description: Explanation about November issue of Bhutan space week.

Core Concepts: Satellite Data Analysis.

#### 84. NASA’s presentation about Bhutan

Description: Nasa’s presentation on southern Bhutan forecasting.

Core Concepts: Satellite Data Analysis. 