Tag: NCERT Text

  • Physics XI | 1.4 FUNDAMENTAL FORCES IN NATURE

    1.4 FUNDAMENTAL FORCES IN NATURE We all have an intuitive notion of force. In our experience, force is needed to push, carry or throw objects, deform or break them. We also experience the impact of forces on us, like when a moving object hits us or we are in a merry-go-round. Going from this intuitive…

  • Physics XI | 1.3 PHYSICS, TECHNOLOGY AND SOCIETY

    1.3 PHYSICS, TECHNOLOGY AND SOCIETY The connection between physics, technology and society can be seen in many examples. The discipline of thermodynamics arose from the need to understand and improve the working of heat engines. The steam engine, as we know, is inseparable from the Industrial Revolution in England in the eighteenth century, which had…